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Add initialization sequence as a HOST

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This commit is contained in:
kkitayam 2021-11-29 00:40:23 +09:00
parent b50cf856b3
commit b3dddc77eb
1 changed files with 38 additions and 11 deletions
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49
hw/bsp/msp432e4/family.c
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@ -33,7 +33,12 @@
//--------------------------------------------------------------------+
void USB0_IRQHandler(void)
{
#if TUSB_OPT_HOST_ENABLED
tuh_int_handler(0);
#endif
#if TUSB_OPT_DEVICE_ENABLED
tud_int_handler(0);
#endif
}
//--------------------------------------------------------------------+
@ -42,6 +47,7 @@ void USB0_IRQHandler(void)
void board_init(void)
{
unsigned bits;
/* Turn off power domains that unused peripherals belong to */
SYSCTL->PCCAN = 0u;
#ifdef __MCU_HAS_LCD0__
@ -80,20 +86,23 @@ void board_init(void)
#endif
/* USR_LED1 ON1 */
SYSCTL->RCGCGPIO |= TU_BIT(CLK_LED);
while (!(SYSCTL->PRGPIO & TU_BIT(CLK_LED))) ;
bits = TU_BIT(CLK_LED);
SYSCTL->RCGCGPIO |= bits;
while (bits != (SYSCTL->RCGCGPIO & bits)) ;
GPIO_LED->DIR = TU_BIT(GPIO_LED_PIN);
GPIO_LED->DEN = TU_BIT(GPIO_LED_PIN);
/* USR_SW1 PJ0 */
SYSCTL->RCGCGPIO |= TU_BIT(CLK_BUTTON);
while (!(SYSCTL->PRGPIO & TU_BIT(CLK_BUTTON))) ;
bits = TU_BIT(CLK_BUTTON);
SYSCTL->RCGCGPIO |= bits;
while (bits != (SYSCTL->RCGCGPIO & bits)) ;
GPIO_BUTTON->PUR = TU_BIT(GPIO_BUTTON_PIN);
GPIO_BUTTON->DEN = TU_BIT(GPIO_BUTTON_PIN);
/* UART PA0,1 */
SYSCTL->RCGCGPIO |= 1u << 0;
while (!(SYSCTL->PRGPIO & (1u << 0))) ;
bits = TU_BIT(0);
SYSCTL->RCGCGPIO |= bits;
while (bits != (SYSCTL->RCGCGPIO & bits)) ;
GPIOA->AFSEL = 3u;
GPIOA->PCTL = 0x11u;
GPIOA->DEN = 3u;
@ -107,11 +116,22 @@ void board_init(void)
UART0->CC = UART_CC_CS_PIOSC; /* Set the baud clock to PIOSC */
UART0->CTL = UART_CTL_RXE | UART_CTL_TXE | UART_CTL_UARTEN;
/* USB PB1(VBUS) PL6,7(DP,DM) */
SYSCTL->RCGCGPIO |= (1u << 1) | (1u << 10);
while (((1u << 1) | (1u << 10)) != (SYSCTL->PRGPIO & ((1u << 1) | (1u << 10)))) ;
GPIOB->AMSEL = 1u << 1;
GPIOL->AMSEL = (1u << 6) | (1u << 7);
/* USB PB0(ID) PB1(VBUS) PL6,7(DP,DM) */
bits = TU_BIT(1) | TU_BIT(10);
SYSCTL->RCGCGPIO |= bits;
while (bits != (SYSCTL->RCGCGPIO & bits)) ;
GPIOB->AMSEL = TU_BIT(0) | TU_BIT(1);
GPIOL->AMSEL = TU_BIT(6) | TU_BIT(7);
#if TUSB_OPT_HOST_ENABLED
/* USB PD6(EPEN) */
bits = TU_BIT(3);
SYSCTL->RCGCGPIO |= bits;
while (bits != (SYSCTL->RCGCGPIO & bits)) ;
GPIOD->AFSEL = TU_BIT(6);
GPIOD->PCTL = 0x05000000u;
GPIOD->DEN = TU_BIT(6);
#endif
SYSCTL->RCGCUSB = 1u; /* Open the clock gate for SYSCLK */
while (!(SYSCTL->PRUSB & (1u << 0))) ;
@ -124,6 +144,13 @@ void board_init(void)
USB0->CC = USB_CC_CLKEN | (3u << USB_CC_CLKDIV_S); /* 60MHz = 240MHz / 4 */
__DMB(); /* Wait for completion of opening of the clock gate */
#if TUSB_OPT_HOST_ENABLED
USB0->GPCS = USB_GPCS_DEVMOD_OTG;
USB0->EPC = USB_EPC_EPENDE | USB_EPC_EPEN_HIGH;
#endif
#if TUSB_OPT_DEVICE_ENABLED
USB0->GPCS = USB_GPCS_DEVMOD_DEVVBUS;
#endif
}
//--------------------------------------------------------------------+