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1025 lines
31 KiB
C
Executable File
1025 lines
31 KiB
C
Executable File
/**
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* @file hal_lcd.c
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*
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* Copyright 2008 Texas Instruments, Inc.
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***************************************************************************/
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#include "hal_lcd.h"
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#include <msp430x54x.h>
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#include "hal_compat.h"
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#include "hal_lcd_fonts.h"
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#include "hal_board.h"
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static unsigned char LcdInitMacro[]={
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0x74,0x00,0x00,0x76,0x00,0x01, // R00 start oscillation
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0x74,0x00,0x01,0x76,0x00,0x0D, // R01 driver output control
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0x74,0x00,0x02,0x76,0x00,0x4C, // R02 LCD - driving waveform control
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0x74,0x00,0x03,0x76,0x12,0x14, // R03 Power control
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0x74,0x00,0x04,0x76,0x04,0x66, // R04 Contrast control
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0x74,0x00,0x05,0x76,0x00,0x10, // R05 Entry mode
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0x74,0x00,0x06,0x76,0x00,0x00, // R06 RAM data write mask
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0x74,0x00,0x07,0x76,0x00,0x15, // R07 Display control
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0x74,0x00,0x08,0x76,0x00,0x03, // R08 Cursor Control
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0x74,0x00,0x09,0x76,0x00,0x00, // R09 RAM data write mask
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0x74,0x00,0x0A,0x76,0x00,0x15, // R0A
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0x74,0x00,0x0B,0x76,0x00,0x03, // R0B Horizontal Cursor Position
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0x74,0x00,0x0C,0x76,0x00,0x03, // R0C Vertical Cursor Position
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0x74,0x00,0x0D,0x76,0x00,0x00, // R0D
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0x74,0x00,0x0E,0x76,0x00,0x15, // R0E
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0x74,0x00,0x0F,0x76,0x00,0x03, // R0F
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0x74,0x00,0x10,0x76,0x00,0x15, // R0E
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0x74,0x00,0x11,0x76,0x00,0x03, // R0F
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};
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static unsigned char Read_Block_Address_Macro[]= {0x74,0x00,0x12,0x77,0x00,0x00};
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static unsigned char Draw_Block_Value_Macro[]={0x74,0x00,0x12,0x76,0xFF,0xFF};
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static unsigned char Draw_Block_Address_Macro[]={0x74,0x00,0x11,0x76,0x00,0x00};
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static unsigned int LcdAddress = 0, LcdTableAddress = 0;
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static unsigned char backlight = 8;
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static int LCD_MEM[110*17];
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/************************************************************************
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* @brief Sends 3+3 bytes of data to the LCD using the format specified
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* by the LCD Guide.
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*
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* @param Data[] Data array for transmission
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*
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* @return none
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*************************************************************************/
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void halLcdSendCommand(unsigned char Data[])
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{
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unsigned char i;
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LCD_CS_RST_OUT &= ~LCD_CS_PIN; //CS = 0 --> Start Transfer
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for ( i = 0; i < 6; i++ )
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{
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while (!(UCB2IFG & UCTXIFG)); // Wait for TXIFG
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UCB2TXBUF = Data[i]; // Load data
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while (UCB2STAT & UCBUSY);
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if (i == 2) //Pull CS up after 3 bytes
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{
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LCD_CS_RST_OUT |= LCD_CS_PIN; //CS = 1 --> Stop Transfer
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LCD_CS_RST_OUT &= ~LCD_CS_PIN; //CS = 0 --> Start Transfer
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}
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}
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LCD_CS_RST_OUT |= LCD_CS_PIN; //CS = 1 --> Stop Transfer
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}
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/************************************************************************
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* @brief Initializes the USCI module, LCD device for communication.
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*
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* - Sets up the SPI2C Communication Module
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* - Performs Hitachi LCD Initialization Procedure
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdInit(void)
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{
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volatile unsigned int i=0;
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LCD_CS_RST_OUT |= LCD_CS_PIN | LCD_RESET_PIN ;
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LCD_CS_RST_DIR |= LCD_CS_PIN | LCD_RESET_PIN ;
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LCD_COMM_SEL |= LCD_BACKLIGHT_PIN;
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LCD_CS_RST_OUT &= ~LCD_RESET_PIN; // Reset LCD
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__delay_cycles(0x47FF); //Reset Pulse
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LCD_CS_RST_OUT |= LCD_RESET_PIN;
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// UCLK,MOSI setup, SOMI cleared
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P9SEL |= BIT1 + BIT3;
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P9SEL &= ~BIT2;
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P9DIR |= BIT1 + BIT3;
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P9DIR &= ~BIT2;
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/* Initialize USCI state machine */
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UCB2CTL0 |= UCMST+UCSYNC+UCCKPL+UCMSB; // 3-pin, 8-bit SPI master
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UCB2CTL1 |= UCSSEL_2; // SMCLK
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UCB2BR0 = 3;
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UCB2BR1 = 0;
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UCB2CTL1 &= ~UCSWRST;
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UCB2IFG &= ~UCRXIFG;
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// LCD Initialization Routine Using Predefined Macros
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while (i < 8*6)
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{
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halLcdSendCommand(&LcdInitMacro[i]);
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i += 6;
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}
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halLcdActive();
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}
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/************************************************************************
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* @brief Shuts down the LCD display and hdisables the USCI communication.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdShutDown(void)
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{
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halLcdStandby();
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LCD_CS_RST_DIR |= LCD_CS_PIN | LCD_RESET_PIN ;
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LCD_CS_RST_OUT &= ~(LCD_CS_PIN | LCD_RESET_PIN );
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LCD_CS_RST_OUT &= ~LCD_RESET_PIN;
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P9SEL &= ~(BIT1 + BIT3 + BIT2);
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P9DIR |= BIT1 + BIT3 + BIT2;
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P9OUT &= ~(BIT1 + BIT3 + BIT2);
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UCB2CTL0 = UCSWRST;
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}
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/************************************************************************
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* @brief Initializes the LCD backlight PWM signal.
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*
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* @param none
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*
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* @return none
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*
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*************************************************************************/
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void halLcdBackLightInit(void)
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{
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LCD_COMM_DIR |= LCD_BACKLIGHT_PIN;
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LCD_COMM_OUT |= LCD_BACKLIGHT_PIN;
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LCD_COMM_SEL |= LCD_BACKLIGHT_PIN;
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TA0CCTL3 = OUTMOD_7;
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TA0CCR3 = TA0CCR0 >> 1 ;
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backlight = 8;
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TA0CCR0 = 400;
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TA0CTL = TASSEL_2+MC_1;
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}
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/************************************************************************
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* @brief Get function for the backlight PWM's duty cycle.
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*
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* @param none
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*
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* @return backlight One of the the 17 possible settings - valued 0 to 16.
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*
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*************************************************************************/
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unsigned int halLcdGetBackLight(void)
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{
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return backlight;
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}
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/************************************************************************
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* @brief Set function for the backlight PWM's duty cycle
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*
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* @param BackLightLevel The target backlight duty cycle - valued 0 to 16.
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*
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* @return none
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*************************************************************************/
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void halLcdSetBackLight(unsigned char BackLightLevel)
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{
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unsigned int dutyCycle = 0, i, dummy;
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if (BackLightLevel > 0)
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{
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TA0CCTL3 = OUTMOD_7;
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dummy = (TA0CCR0 >> 4);
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for (i = 0; i < BackLightLevel; i++)
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dutyCycle += dummy;
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TA0CCR3 = dutyCycle;
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// If the backlight was previously turned off, turn it on.
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if (!backlight)
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TA0CTL |= MC0;
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}
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else
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{
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TA0CCTL3 = 0;
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TA0CTL &= ~MC0;
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}
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backlight = BackLightLevel;
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}
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/************************************************************************
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* @brief Turns off the backlight.
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*
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* Clears the respective GPIO and timer settings.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdShutDownBackLight(void)
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{
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LCD_COMM_DIR |= LCD_BACKLIGHT_PIN;
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LCD_COMM_OUT &= ~(LCD_BACKLIGHT_PIN);
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LCD_COMM_SEL &= ~LCD_BACKLIGHT_PIN;
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TA0CCTL3 = 0;
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TA0CTL = 0;
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backlight = 0;
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}
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/************************************************************************
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* @brief Set function for the contrast level of the LCD.
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*
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* @param ContrastLevel The target contrast level
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*
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* @return none
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*************************************************************************/
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void halLcdSetContrast(unsigned char ContrastLevel)
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{
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if (ContrastLevel > 127) ContrastLevel = 127;
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if (ContrastLevel < 70) ContrastLevel = 70;
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LcdInitMacro[ 0x04 * 6 + 5 ] = ContrastLevel;
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halLcdSendCommand(&LcdInitMacro[ 0x04 * 6 ]);
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}
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/************************************************************************
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* @brief Get function for the contrast level of the LCD.
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*
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* @param none
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*
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* @return ContrastLevel The LCD constrast level
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*************************************************************************/
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unsigned char halLcdGetContrast(void)
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{
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return LcdInitMacro[ 0x04 * 6 + 5 ] ;
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}
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/************************************************************************
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* @brief Turns the LCD cursor on at the current text position.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdCursor(void)
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{
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LcdInitMacro[ 8 * 6 + 5 ] ^= BIT2;
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halLcdSendCommand(&LcdInitMacro[ 8 * 6 ]);
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LcdInitMacro[ 0x0B * 6 + 5 ] = ((LcdAddress & 0x1F) << 3) ;
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LcdInitMacro[ 0x0B * 6 + 4 ] = ( (LcdAddress & 0x1F) << 3 ) + 3;
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LcdInitMacro[ 0x0C * 6 + 5 ] = (LcdAddress >> 5);
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LcdInitMacro[ 0x0C * 6 + 4 ] = (LcdAddress >> 5) + 7;
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halLcdSendCommand(&LcdInitMacro[ 0x0B * 6 ]);
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halLcdSendCommand(&LcdInitMacro[ 0x0C * 6 ]);
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halLcdSetAddress(LcdAddress);
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}
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/************************************************************************
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* @brief Turns off the LCD cursor.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdCursorOff(void)
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{
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LcdInitMacro[ 8 * 6 + 5 ] &= ~BIT2;
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halLcdSendCommand(&LcdInitMacro[ 8 * 6 ]);
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}
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/************************************************************************
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* @brief Inverts the grayscale values of the LCD display (Black <> white).
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdReverse(void)
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{
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LcdInitMacro[ 7 * 6 + 5 ] ^= BIT1;
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halLcdSendCommand(&LcdInitMacro[ 7 * 6 ]);
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}
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/************************************************************************
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* @brief Sets the LCD in standby mode to reduce power consumption.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdStandby(void)
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{
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LcdInitMacro[ 3 * 6 + 5 ] &= (~BIT3) & (~BIT2);
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LcdInitMacro[ 3 * 6 + 5 ] |= BIT0;
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halLcdSendCommand(&LcdInitMacro[ 3 * 6 ]);
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}
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/************************************************************************
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* @brief Puts the LCD into active mode.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdActive(void)
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{
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halLcdSendCommand(LcdInitMacro);
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LcdInitMacro[ 3 * 6 + 5 ] |= BIT3 ;
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LcdInitMacro[ 3 * 6 + 5 ] &= ~BIT0;
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halLcdSendCommand(&LcdInitMacro[ 3 * 6 ]);
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}
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/************************************************************************
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* @brief Sets the pointer location in the LCD.
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*
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* - LcdAddress = Address
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* - LcdTableAddress = Correct Address Row + Column
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* = (Address / 0x20)* 17 + Column
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*
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* @param Address The target pointer location in the LCD.
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*
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* @return none
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*************************************************************************/
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void halLcdSetAddress(int Address)
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{
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int temp;
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Draw_Block_Address_Macro[4] = Address >> 8;
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Draw_Block_Address_Macro[5] = Address & 0xFF;
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halLcdSendCommand(Draw_Block_Address_Macro);
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LcdAddress = Address;
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temp = Address >> 5; // Divided by 0x20
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temp = temp + (temp << 4);
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//Multiplied by (1+16) and added by the offset
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LcdTableAddress = temp + (Address & 0x1F);
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}
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/************************************************************************
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* @brief Draws a block at the specified LCD address.
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*
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* A block is the smallest addressable memory on the LCD and is
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* equivalent to 8 pixels, each of which is represented by 2 bits
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* that represent a grayscale value between 00b and 11b.
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*
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* @param Address The address at which to draw the block.
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*
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* @param Value The value of the block
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*
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* @return none
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*************************************************************************/
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void halLcdDrawBlock(unsigned int Address, unsigned int Value)
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{
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halLcdSetAddress(Address);
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halLcdDrawCurrentBlock(Value);
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}
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/************************************************************************
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* @brief Writes Value to LCD CGram and MSP430 internal LCD table.
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*
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* Also updates the LcdAddress and LcdTableAddress to the correct values.
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*
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* @param Value The value of the block to be written to the LCD.
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*
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* @return none
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*************************************************************************/
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void halLcdDrawCurrentBlock(unsigned int Value)
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{
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int temp;
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Draw_Block_Value_Macro[4] = Value >> 8;
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Draw_Block_Value_Macro[5] = Value & 0xFF;
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LCD_MEM[ LcdTableAddress ] = Value;
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halLcdSendCommand(Draw_Block_Value_Macro);
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LcdAddress++;
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temp = LcdAddress >> 5; // Divided by 0x20
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temp = temp + (temp << 4);
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// Multiplied by (1+16) and added by the offset
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LcdTableAddress = temp + (LcdAddress & 0x1F);
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// If LcdAddress gets off the right edge, move to next line
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if ((LcdAddress & 0x1F) > 0x11)
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halLcdSetAddress( (LcdAddress & 0xFFE0) + 0x20 );
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if (LcdAddress == LCD_Size)
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halLcdSetAddress( 0 );
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}
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/************************************************************************
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* @brief Returns the LCD CGRAM value at location Address.
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*
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* @param Address The address of the block to be read from the LCD.
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*
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* @return Value The value held at the specified address.
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*************************************************************************/
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int halLcdReadBlock(unsigned int Address)
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{
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int i = 0, Value = 0, ReadData[7];
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halLcdSetAddress( Address );
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halLcdSendCommand(Read_Block_Address_Macro);
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LCD_COMM_OUT &= ~LCD_CS_PIN; // start transfer CS=0
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UCB2TXBUF = 0x77; // Transmit first character 0x75
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while (!(UCB2IFG & UCTXIFG));
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while (UCB2STAT & UCBUSY);
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//Read 5 dummies values and 2 valid address data
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P9SEL &= ~BIT1; //Change SPI2C Dir
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P9SEL |= BIT2;
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for (i = 0; i < 7; i ++ )
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{
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P4OUT |= BIT2;
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P4OUT &= ~BIT2;
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UCA0IFG &= ~UCRXIFG;
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UCA0TXBUF = 1; // load dummy byte 1 for clk
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while (!(UCA0IFG & UCRXIFG));
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ReadData[i] = UCA0RXBUF;
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}
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LCD_COMM_OUT |= LCD_CS_PIN; // Stop Transfer CS = 1
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P9SEL |= BIT1; //Change SPI2C Dir
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P9SEL &= ~BIT2;
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Value = (ReadData[5] << 8) + ReadData[6];
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return Value;
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}
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/************************************************************************
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* @brief Draw a Pixel of grayscale at coordinate (x,y) to LCD
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*
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* @param x x-coordinate for grayscale value
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*
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* @param y y-coordinate for grayscale value
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*
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* @param GrayScale The intended grayscale value of the pixel - one of
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* four possible settings.
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*
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* @return none
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*************************************************************************/
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void halLcdPixel( int x, int y, unsigned char GrayScale)
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{
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int Address, Value;
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unsigned char offset;
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//Each line increments by 0x20
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if ( (x>=0 ) && (x<LCD_COL) && (y>=0) && (y<LCD_ROW))
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{
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Address = (y << 5) + (x >> 3) ; //Narrow down to 8 possible pixels
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offset = x & 0x07; //3 LSBs = pos. within the 8 columns
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Value = LCD_MEM[(y << 4)+ y + (x>>3)]; //y * 17 --> row. x>>3 --> column
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switch(GrayScale)
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{
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case PIXEL_OFF:
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Value &= ~ ( 3 << (offset * 2 )); //Both corresponding bits are off
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break;
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case PIXEL_LIGHT:
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Value &= ~ ( 1 << ((offset * 2) + 1));
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Value |= 1<< ( offset * 2 ); //Lower bit is on
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break;
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case PIXEL_DARK:
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Value &= ~ ( 1 << (offset * 2) ); //Lower bit is on
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Value |= ( 1 << ( (offset * 2) + 1));
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break;
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case PIXEL_ON:
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Value |= ( 3 << (offset * 2 )); //Both on
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break;
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}
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halLcdDrawBlock( Address, Value );
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}
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}
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/************************************************************************
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* @brief Clears entire LCD CGRAM as well as LCD_MEM.
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*
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* @param none
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*
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* @return none
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*************************************************************************/
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void halLcdClearScreen(void)
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{
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int i;
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halLcdSetAddress(0);
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// Clear the entire LCD CGRAM
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for ( i = 0; i < LCD_Size; i++)
|
|
halLcdDrawCurrentBlock(0x00);
|
|
|
|
halLcdSetAddress(0); // Reset LCD address
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Loads an image of size = rows * columns, starting at the
|
|
* coordinate (x,y).
|
|
*
|
|
* @param Image[] The image to be loaded
|
|
*
|
|
* @param Rows The number of rows in the image. Size = Rows * Columns.
|
|
*
|
|
* @param Columns The number of columns in the image. Size = Rows * Columns.
|
|
*
|
|
* @param x x-coordinate of the image's starting location
|
|
*
|
|
* @param y y-coordinate of the image's starting location
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdImage(const unsigned int Image[], int Columns, int Rows, int x, int y)
|
|
{
|
|
int i,j, CurrentLocation, index=0 ;
|
|
|
|
CurrentLocation = (y << 5) + (x >> 3);
|
|
halLcdSetAddress( CurrentLocation );
|
|
for (i=0; i < Rows; i++)
|
|
{
|
|
for (j=0; j < Columns; j++)
|
|
halLcdDrawCurrentBlock(Image[index++]);
|
|
CurrentLocation += 0x20;
|
|
halLcdSetAddress(CurrentLocation );
|
|
}
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Clears an image of size rows x columns starting at (x, y).
|
|
*
|
|
* @param Columns The size, in columns, of the image to be cleared.
|
|
*
|
|
* @param Rows The size, in rows, of the image to be cleared.
|
|
*
|
|
* @param x x-coordinate of the image to be cleared
|
|
*
|
|
* @param y y-coordinate of the image to be cleared
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdClearImage(int Columns, int Rows, int x, int y)
|
|
{
|
|
int i,j, Current_Location;
|
|
Current_Location = (y << 5) + (x >> 3);
|
|
halLcdSetAddress( Current_Location );
|
|
for (i=0; i < Rows; i++)
|
|
{
|
|
for (j=0; j < Columns; j++)
|
|
halLcdDrawCurrentBlock(0);
|
|
Current_Location += 0x20;
|
|
halLcdSetAddress(Current_Location );
|
|
}
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Writes Value to LCD CGRAM. Pointers internal to the LCD
|
|
* are also updated.
|
|
*
|
|
* @param Value The value to be written to the current LCD pointer
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdDrawTextBlock(unsigned int Value)
|
|
{
|
|
int temp;
|
|
|
|
Draw_Block_Value_Macro[4] = Value >> 8;
|
|
Draw_Block_Value_Macro[5] = Value & 0xFF;
|
|
LCD_MEM[ LcdTableAddress ] = Value;
|
|
|
|
halLcdSendCommand(Draw_Block_Value_Macro);
|
|
|
|
LcdAddress++;
|
|
temp = LcdAddress >> 5; // Divided by 0x20
|
|
temp = temp + (temp << 4);
|
|
//Multiplied by (1+16) and added by the offset
|
|
LcdTableAddress = temp + (LcdAddress & 0x1F);
|
|
|
|
// If LcdAddress gets off the right edge, move to next line
|
|
if ((LcdAddress & 0x1F) > 0x10)
|
|
halLcdSetAddress( (LcdAddress & 0xFFE0) + 0x20 );
|
|
|
|
if (LcdAddress >= LCD_Size)
|
|
halLcdSetAddress( 0 );
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Displays the string to the LCD starting at current location.
|
|
*
|
|
* Writes all the data to LCD_MEM first, then updates all corresponding
|
|
* LCD CGRAM locations at once, in a continuous fashion.
|
|
*
|
|
* @param String[] The string to be displayed on LCD.
|
|
*
|
|
* @param TextStyle Value that specifies whether the string is to be
|
|
* inverted or overwritten.
|
|
* - Invert = 0x01
|
|
* - Overwrite = 0x04
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdPrint( char String[], unsigned char TextStyle)
|
|
{
|
|
int Address;
|
|
int LCD_MEM_Add;
|
|
int ActualAddress;
|
|
int i, j, Counter=0, BlockValue;
|
|
int temp;
|
|
char LookUpChar;
|
|
|
|
ActualAddress = LcdAddress;
|
|
Counter = LcdAddress & 0x1F;
|
|
i=0;
|
|
|
|
while (String[i]!=0) // Stop on null character
|
|
{
|
|
LookUpChar = fonts_lookup[(uint8_t)String[i]];
|
|
|
|
for (j=0;j < FONT_HEIGHT ;j++)
|
|
{
|
|
Address = ActualAddress + j*0x20;
|
|
temp = Address >> 5;
|
|
temp += (temp <<4);
|
|
|
|
LCD_MEM_Add = temp + (Address & 0x1F);
|
|
|
|
BlockValue = LCD_MEM[ LCD_MEM_Add ];
|
|
|
|
#if 0
|
|
// work around a mspgcc bug - fixed in LTS but not in 11.10 yet
|
|
if (TextStyle & INVERT_TEXT)
|
|
if (TextStyle & OVERWRITE_TEXT)
|
|
BlockValue = 0xFFFF - fonts[LookUpChar*13+j];
|
|
else
|
|
BlockValue |= 0xFFFF - fonts[LookUpChar*13+j];
|
|
|
|
else
|
|
if (TextStyle & OVERWRITE_TEXT)
|
|
BlockValue = fonts[LookUpChar*(FONT_HEIGHT+1) +j];
|
|
else
|
|
BlockValue |= fonts[LookUpChar*(FONT_HEIGHT+1) +j];
|
|
#else
|
|
int offset = j;
|
|
int counter;
|
|
for (counter = 0 ; counter < LookUpChar ; counter++){
|
|
offset = offset + FONT_HEIGHT + 1;
|
|
}
|
|
BlockValue |= fonts[offset];
|
|
#endif
|
|
halLcdDrawBlock( Address, BlockValue);
|
|
}
|
|
|
|
Counter++;
|
|
if (Counter == 17)
|
|
{
|
|
Counter = 0;
|
|
ActualAddress += 0x20*FONT_HEIGHT - 16;
|
|
if (ActualAddress > LCD_Last_Pixel-0x20*FONT_HEIGHT )
|
|
ActualAddress = 0;
|
|
}
|
|
else
|
|
ActualAddress++;
|
|
i++;
|
|
}
|
|
halLcdSetAddress(ActualAddress);
|
|
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
* @brief Displays the string to the LCD starting at (x,y) location.
|
|
*
|
|
* Writes all the data to LCD_MEM first, then updates all corresponding
|
|
* LCD CGRAM locations at once, in a continuous fashion.
|
|
*
|
|
* @param String[] String to be displayed on LCD
|
|
*
|
|
* @param x x-coordinate of the write location on the LCD
|
|
*
|
|
* @param y y-coordinate of the write location on the LCD
|
|
*
|
|
* @param TextStyle Value that specifies whether the string is to be
|
|
* inverted or overwritten.
|
|
* - Invert = 0x01
|
|
* - Overwrite = 0x04
|
|
*************************************************************************/
|
|
void halLcdPrintXY( char String[], int x, int y, unsigned char TextStyle)
|
|
{
|
|
//Each line increments by 0x20
|
|
halLcdSetAddress( (y << 5) + (x >> 3)) ; //Narrow down to 8 possible pixels
|
|
halLcdPrint(String, TextStyle);
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Displays a string on the LCD on the specified line.
|
|
*
|
|
* @param String[] The string to be displayed on LCD.
|
|
*
|
|
* @param Line The line on the LCD on which to print the string.
|
|
*
|
|
* @param TextStyle Value that specifies whether the string is to be
|
|
* inverted or overwritten.
|
|
* - Invert = 0x01
|
|
* - Overwrite = 0x04
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdPrintLine(char String[], unsigned char Line, unsigned char TextStyle)
|
|
{
|
|
int temp;
|
|
temp = Line * FONT_HEIGHT ;
|
|
halLcdSetAddress( temp << 5 ) ; // 0x20 = 2^5
|
|
halLcdPrint(String, TextStyle);
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Prints a string beginning on a given line and column.
|
|
*
|
|
* @param String[] The string to be displayed on LCD.
|
|
*
|
|
* @param Line The line on which to print the string of text
|
|
*
|
|
* @param Col The column on which to print the string of text
|
|
*
|
|
* @param TextStyle Value that specifies whether the string is to be
|
|
* inverted or overwritten.
|
|
* - Invert = 0x01
|
|
* - Overwrite = 0x04
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdPrintLineCol(char String[], unsigned char Line, unsigned char Col,
|
|
unsigned char TextStyle)
|
|
{
|
|
int temp;
|
|
|
|
temp = Line * FONT_HEIGHT;
|
|
temp <<= 5;
|
|
temp += Col;
|
|
|
|
halLcdSetAddress( temp ) ; // 0x20 = 2^5
|
|
halLcdPrint(String, TextStyle);
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
* @brief Draws a horizontral line from (x1,y) to (x2,y) of GrayScale level
|
|
*
|
|
* @param x1 x-coordinate of the first point
|
|
*
|
|
* @param x2 x-coordinate of the second point
|
|
*
|
|
* @param y y-coordinate of both points
|
|
*
|
|
* @param GrayScale Grayscale level of the horizontal line
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdHLine( int x1, int x2, int y, unsigned char GrayScale)
|
|
{
|
|
int x_dir, x;
|
|
if ( x1 < x2 )
|
|
x_dir = 1;
|
|
else
|
|
x_dir = -1;
|
|
x = x1;
|
|
while (x != x2)
|
|
{
|
|
halLcdPixel( x,y, GrayScale);
|
|
x += x_dir;
|
|
}
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Draws a vertical line from (x,y1) to (x,y2) of GrayScale level
|
|
*
|
|
* @param x x-coordinate of both points
|
|
*
|
|
* @param y1 y-coordinate of the first point
|
|
*
|
|
* @param y2 y-coordinate of the second point
|
|
*
|
|
* @param GrayScale GrayScale level of the vertical line
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdVLine( int x, int y1, int y2, unsigned char GrayScale)
|
|
{
|
|
int y_dir, y;
|
|
if ( y1 < y2 )
|
|
y_dir = 1;
|
|
else
|
|
y_dir = -1;
|
|
y = y1;
|
|
while (y != y2)
|
|
{
|
|
halLcdPixel( x,y, GrayScale);
|
|
y += y_dir;
|
|
}
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Draws a line from (x1,y1) to (x2,y2) of GrayScale level.
|
|
*
|
|
* Uses Bresenham's line algorithm.
|
|
*
|
|
* @param x1 x-coordinate of the first point
|
|
*
|
|
* @param y1 y-coordinate of the first point
|
|
*
|
|
* @param x2 x-coordinate of the second point
|
|
*
|
|
* @param y2 y-coordinate of the second point
|
|
*
|
|
* @param GrayScale Grayscale level of the line
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdLine( int x1, int y1, int x2, int y2, unsigned char GrayScale)
|
|
{
|
|
int x, y, deltay, deltax, d;
|
|
int x_dir, y_dir;
|
|
|
|
if ( x1 == x2 )
|
|
halLcdVLine( x1, y1, y2, GrayScale );
|
|
else
|
|
{
|
|
if ( y1 == y2 )
|
|
halLcdHLine( x1, x2, y1, GrayScale );
|
|
else // a diagonal line
|
|
{
|
|
if (x1 > x2)
|
|
x_dir = -1;
|
|
else x_dir = 1;
|
|
if (y1 > y2)
|
|
y_dir = -1;
|
|
else y_dir = 1;
|
|
|
|
x = x1;
|
|
y = y1;
|
|
deltay = ABS(y2 - y1);
|
|
deltax = ABS(x2 - x1);
|
|
|
|
if (deltax >= deltay)
|
|
{
|
|
d = (deltay << 1) - deltax;
|
|
while (x != x2)
|
|
{
|
|
halLcdPixel(x, y, GrayScale);
|
|
if ( d < 0 )
|
|
d += (deltay << 1);
|
|
else
|
|
{
|
|
d += ((deltay - deltax) << 1);
|
|
y += y_dir;
|
|
}
|
|
x += x_dir;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
d = (deltax << 1) - deltay;
|
|
while (y != y2)
|
|
{
|
|
halLcdPixel(x, y, GrayScale);
|
|
if ( d < 0 )
|
|
d += (deltax << 1);
|
|
else
|
|
{
|
|
d += ((deltax - deltay) << 1);
|
|
x += x_dir;
|
|
}
|
|
y += y_dir;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
* @brief Draw a circle of Radius with center at (x,y) of GrayScale level.
|
|
*
|
|
* Uses Bresenham's circle algorithm
|
|
*
|
|
* @param x x-coordinate of the circle's center point
|
|
*
|
|
* @param y y-coordinate of the circle's center point
|
|
*
|
|
* @param Radius Radius of the circle
|
|
*
|
|
* @param GrayScale Grayscale level of the circle
|
|
*************************************************************************/
|
|
void halLcdCircle(int x, int y, int Radius, int GrayScale)
|
|
{
|
|
int xx, yy, ddF_x, ddF_y, f;
|
|
|
|
ddF_x = 0;
|
|
ddF_y = -(2 * Radius);
|
|
f = 1 - Radius;
|
|
|
|
xx = 0;
|
|
yy = Radius;
|
|
halLcdPixel(x + xx, y + yy, GrayScale);
|
|
halLcdPixel(x + xx, y - yy, GrayScale);
|
|
halLcdPixel(x - xx, y + yy, GrayScale);
|
|
halLcdPixel(x - xx, y - yy, GrayScale);
|
|
halLcdPixel(x + yy, y + xx, GrayScale);
|
|
halLcdPixel(x + yy, y - xx, GrayScale);
|
|
halLcdPixel(x - yy, y + xx, GrayScale);
|
|
halLcdPixel(x - yy, y - xx, GrayScale);
|
|
while (xx < yy)
|
|
{
|
|
if (f >= 0)
|
|
{
|
|
yy--;
|
|
ddF_y += 2;
|
|
f += ddF_y;
|
|
}
|
|
xx++;
|
|
ddF_x += 2;
|
|
f += ddF_x + 1;
|
|
halLcdPixel(x + xx, y + yy, GrayScale);
|
|
halLcdPixel(x + xx, y - yy, GrayScale);
|
|
halLcdPixel(x - xx, y + yy, GrayScale);
|
|
halLcdPixel(x - xx, y - yy, GrayScale);
|
|
halLcdPixel(x + yy, y + xx, GrayScale);
|
|
halLcdPixel(x + yy, y - xx, GrayScale);
|
|
halLcdPixel(x - yy, y + xx, GrayScale);
|
|
halLcdPixel(x - yy, y - xx, GrayScale);
|
|
}
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Scrolls a single row of pixels one column to the left.
|
|
*
|
|
* The column that is scrolled out of the left side of the LCD will be
|
|
* displayed the right side of the LCD.
|
|
*
|
|
* @param y The row of pixels to scroll. y = 0 is at the top-left
|
|
* corner of the LCD.
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdScrollRow(int y)
|
|
{
|
|
int i, Address, LcdTableAddressTemp;
|
|
unsigned int temp;
|
|
|
|
Address = y << 5;
|
|
|
|
halLcdSetAddress( Address );
|
|
|
|
//Multiplied by (1+16) and added by the offset
|
|
LcdTableAddressTemp = y + (y << 4);
|
|
temp = ((LCD_MEM[LcdTableAddressTemp] & 0x0003) <<14);
|
|
|
|
for (i = 0; i < 0x10; i++)
|
|
halLcdDrawCurrentBlock( ( (LCD_MEM[LcdTableAddressTemp+i] & 0xFFFC ) >> 2 ) \
|
|
+ ((LCD_MEM[LcdTableAddressTemp+i+1] & 0x0003) << 14 ));
|
|
|
|
halLcdDrawCurrentBlock( (( LCD_MEM[LcdTableAddressTemp + 0x10] & 0xFFFC ) >> 2) + temp);
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Scrolls multiple rows of pixels, yStart to yEnd,
|
|
* one column to the left.
|
|
*
|
|
* The column that is scrolled out of the left side of the LCD will be
|
|
* displayed the right side of the LCD. y = 0 is at the top-left of the
|
|
* LCD screen.
|
|
*
|
|
* @param yStart The beginning row to be scrolled
|
|
*
|
|
* @param yEnd The last row to be scrolled
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdHScroll(int yStart, int yEnd)
|
|
{
|
|
int i ;
|
|
|
|
for (i = yStart; i < yEnd+1; i++)
|
|
halLcdScrollRow(i);
|
|
}
|
|
|
|
/************************************************************************
|
|
* @brief Scrolls a line of text one column to the left.
|
|
*
|
|
* @param Line The line of text to be scrolled.
|
|
*
|
|
* @return none
|
|
*************************************************************************/
|
|
void halLcdScrollLine(int Line)
|
|
{
|
|
int i, Row ;
|
|
|
|
Row = Line * FONT_HEIGHT;
|
|
|
|
for (i = Row; i < Row + FONT_HEIGHT ; i++)
|
|
halLcdScrollRow(i);
|
|
}
|