You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.7 KiB
88 lines
2.7 KiB
//
|
|
// Created by MightyPork on 2017/12/15.
|
|
//
|
|
|
|
#include "platform.h"
|
|
#include "framework/resources.h"
|
|
#include "debug_uart.h"
|
|
#include "plat_compat.h"
|
|
|
|
#if USE_DEBUG_UART
|
|
|
|
/** Init the submodule. */
|
|
void DebugUart_Init(void)
|
|
{
|
|
// Debug UART
|
|
bool ok = true;
|
|
ok &= rsc_claim(&UNIT_SYSTEM, R_USART2);
|
|
ok &= rsc_claim(&UNIT_SYSTEM, R_PA2);
|
|
assert_param(ok);
|
|
}
|
|
|
|
/** Init the hardware peripheral - this is called early in the boot process */
|
|
void DebugUart_PreInit(void)
|
|
{
|
|
__HAL_RCC_USART2_CLK_ENABLE();
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
|
|
LL_GPIO_SetPinMode(GPIOA, LL_GPIO_PIN_2, LL_GPIO_MODE_ALTERNATE);
|
|
LL_GPIO_SetPinOutputType(GPIOA, LL_GPIO_PIN_2, LL_GPIO_OUTPUT_PUSHPULL);
|
|
LL_GPIO_SetPinSpeed(GPIOA, LL_GPIO_PIN_2, LL_GPIO_SPEED_FREQ_HIGH);
|
|
|
|
// commented out default values
|
|
// LL_USART_ConfigAsyncMode(USART2);
|
|
// LL_USART_SetDataWidth(USART2, LL_USART_DATAWIDTH_8B);
|
|
// LL_USART_SetParity(USART2, LL_USART_PARITY_NONE);
|
|
// LL_USART_SetStopBitsLength(USART2, LL_USART_STOPBITS_1);
|
|
// LL_USART_SetHWFlowCtrl(USART2, LL_USART_HWCONTROL_NONE);
|
|
LL_USART_EnableDirectionTx(USART2);
|
|
|
|
#if GEX_PLAT_F072_DISCOVERY
|
|
LL_USART_SetBaudRate(USART2, SystemCoreClock, LL_USART_OVERSAMPLING_16, 115200); // This is not great, let's hope it's like this on all platforms...
|
|
LL_GPIO_SetAFPin_0_7(GPIOA, LL_GPIO_PIN_2, LL_GPIO_AF_1);
|
|
#elif GEX_PLAT_F103_BLUEPILL
|
|
LL_USART_SetBaudRate(USART2, SystemCoreClock/2, 115200); // This is not great, let's hope it's like this on all platforms...
|
|
#elif GEX_PLAT_F303_DISCOVERY
|
|
LL_USART_SetBaudRate(USART2,
|
|
LL_RCC_GetUSARTClockFreq(LL_RCC_USART2_CLKSOURCE),
|
|
LL_USART_OVERSAMPLING_16,
|
|
115200);
|
|
LL_GPIO_SetAFPin_0_7(GPIOA, LL_GPIO_PIN_2, LL_GPIO_AF_7); // uart2 is AF7 here
|
|
#elif GEX_PLAT_F407_DISCOVERY
|
|
LL_USART_SetBaudRate(USART2,
|
|
SystemCoreClock/4, // if core is at 168 MHz, this is 48 MHz
|
|
LL_USART_OVERSAMPLING_16,
|
|
115200);
|
|
LL_GPIO_SetAFPin_0_7(GPIOA, LL_GPIO_PIN_2, LL_GPIO_AF_7); // uart2 is AF7 here (same like 303)
|
|
#else
|
|
#error "BAD PLATFORM!"
|
|
#endif
|
|
|
|
LL_USART_Enable(USART2);
|
|
}
|
|
|
|
/** Debug print, used by debug / newlib */
|
|
ssize_t _write_r(struct _reent *rptr, int fd, const void *buf, size_t len)
|
|
{
|
|
(void)rptr;
|
|
|
|
uint8_t *buff = buf;
|
|
|
|
for (uint32_t i = 0; i < len; i++) {
|
|
while (!LL_USART_IsActiveFlag_TC(USART2));
|
|
LL_USART_TransmitData8(USART2, *buff++);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
#else
|
|
|
|
// No-uart variant
|
|
void DebugUart_PreInit(void) {}
|
|
void DebugUart_Init(void) {}
|
|
ssize_t _write_r(struct _reent *rptr, int fd, const void *buf, size_t len) {
|
|
return len;
|
|
}
|
|
|
|
#endif //USE_DEBUG_UART
|
|
|