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add initial support for output using ITM via SWO (not tested though)

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hathach 2013-01-17 02:04:47 +07:00
parent aae51e985f
commit 10009cba99
4 changed files with 27 additions and 5 deletions
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1
demos/bsp/boards/board.h
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@ -56,6 +56,7 @@
#endif #endif
#include <stdint.h> #include <stdint.h>
#include "common/binary.h" // This file is too good to not use
#define BOARD_AT86RF2XX 0 #define BOARD_AT86RF2XX 0
#define BOARD_LPCXPRESSO1347 1 #define BOARD_LPCXPRESSO1347 1

5
demos/bsp/boards/board_lpcxpresso1347.c
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@ -52,6 +52,11 @@ void board_init(void)
#if CFG_UART_ENABLE #if CFG_UART_ENABLE
UARTInit(CFG_UART_BAUDRATE); UARTInit(CFG_UART_BAUDRATE);
#endif #endif
#if CFG_PRINTF_TARGET == PRINTF_TARGET_SWO
LPC_IOCON->PIO0_9 &= ~0x07; /* UART I/O config */
LPC_IOCON->PIO0_9 |= 0x03; /* UART RXD */
#endif
} }
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+

5
demos/bsp/boards/board_ngx4330.c
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@ -49,11 +49,6 @@
#include "lpc43xx_i2s.h" #include "lpc43xx_i2s.h"
#include "lpc43xx_emc.h" #include "lpc43xx_emc.h"
// TODO abstract later: n-th Bit
#ifndef BIT_
#define BIT_(n) (1 << (n))
#endif
#define BOARD_MAX_LEDS 2 #define BOARD_MAX_LEDS 2
const static struct { const static struct {
uint8_t port; uint8_t port;

21
demos/bsp/boards/printf_retarget.c
View File

@ -48,7 +48,20 @@
int __sys_write (int iFileHandle, char *pcBuffer, int iLength) int __sys_write (int iFileHandle, char *pcBuffer, int iLength)
{ {
(void) iFileHandle; (void) iFileHandle;
#if CFG_PRINTF_TARGET == PRINTF_TARGET_UART
return board_uart_send((uint8_t*)pcBuffer, iLength); return board_uart_send((uint8_t*)pcBuffer, iLength);
#elif CFG_PRINTF_TARGET == PRINTF_TARGET_SWO
uint32_t i;
for (i = 0; i<iLength; i++)
{
ITM_SendChar(pcBuffer[i]); // print each character
}
return iLength;
#else
#error Thach, did you forget something
#endif
} }
// Called by bottom level of scanf routine within RedLib C library to read // Called by bottom level of scanf routine within RedLib C library to read
@ -58,7 +71,15 @@ int __sys_write (int iFileHandle, char *pcBuffer, int iLength)
int __sys_readc (void) int __sys_readc (void)
{ {
uint8_t c; uint8_t c;
#if CFG_PRINTF_TARGET == PRINTF_TARGET_UART
board_uart_recv(&c, 1); board_uart_recv(&c, 1);
#elif CFG_PRINTF_TARGET == PRINTF_TARGET_SWO
c = ITM_ReceiveChar();
#else
#error Thach, did you forget something
#endif
return (int)c; return (int)c;
} }