void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(huart->Instance==USART3)
{
/* USER CODE BEGIN USART3_MspInit 0 */
/* USER CODE END USART3_MspInit 0 */
/* Peripheral clock enable */
__USART3_CLK_ENABLE();
/**USART3 GPIO Configuration
PC10 ------> USART3_TX
PC11 ------> USART3_RX
*/
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
__HAL_AFIO_REMAP_USART3_PARTIAL();
/* USER CODE BEGIN USART3_MspInit 1 */
/* USER CODE END USART3_MspInit 1 */
}
}
/**
* Configure pin (input, output, alternate function or analog) + output speed + AF
*/
void pin_function(PinName pin, int data)
{
MBED_ASSERT(pin != (PinName)NC);
// Get the pin informations
uint32_t mode = STM_PIN_MODE(data);
uint32_t pupd = STM_PIN_PUPD(data);
uint32_t afnum = STM_PIN_AFNUM(data);
uint32_t port_index = STM_PORT(pin);
uint32_t pin_index = STM_PIN(pin);
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Enable AFIO clock
__HAL_RCC_AFIO_CLK_ENABLE();
// Configure Alternate Function
// Warning: Must be done before the GPIO is initialized
if (afnum > 0) {
switch (afnum) {
case 1: // Remap SPI1
__HAL_AFIO_REMAP_SPI1_ENABLE();
break;
case 2: // Remap I2C1
__HAL_AFIO_REMAP_I2C1_ENABLE();
break;
case 3: // Remap USART1
__HAL_AFIO_REMAP_USART1_ENABLE();
break;
case 4: // Remap USART2
__HAL_AFIO_REMAP_USART2_ENABLE();
break;
case 5: // Partial Remap USART3
__HAL_AFIO_REMAP_USART3_PARTIAL();
break;
case 6: // Partial Remap TIM1
__HAL_AFIO_REMAP_TIM1_PARTIAL();
break;
case 7: // Partial Remap TIM3
__HAL_AFIO_REMAP_TIM3_PARTIAL();
break;
case 8: // Full Remap TIM2
__HAL_AFIO_REMAP_TIM2_ENABLE();
break;
case 9: // Full Remap TIM3
__HAL_AFIO_REMAP_TIM3_ENABLE();
break;
default:
break;
}
}
// Configure GPIO
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
GPIO_InitStructure.Mode = gpio_mode[mode];
GPIO_InitStructure.Pull = pupd;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(gpio, &GPIO_InitStructure);
// Disconnect JTAG-DP + SW-DP signals.
// Warning: Need to reconnect under reset
if ((pin == PA_13) || (pin == PA_14)) {
__HAL_AFIO_REMAP_SWJ_DISABLE(); // JTAG-DP Disabled and SW-DP Disabled
}
if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
__HAL_AFIO_REMAP_SWJ_NOJTAG(); // JTAG-DP Disabled and SW-DP enabled
}
}
