void uart_deinit(pyb_uart_obj_t *self) {
self->is_enabled = false;
// Disable UART
self->uartx->CR1 &= ~USART_CR1_UE;
// Reset and turn off the UART peripheral
if (self->uart_id == 1) {
HAL_NVIC_DisableIRQ(USART1_IRQn);
__HAL_RCC_USART1_FORCE_RESET();
__HAL_RCC_USART1_RELEASE_RESET();
__HAL_RCC_USART1_CLK_DISABLE();
} else if (self->uart_id == 2) {
HAL_NVIC_DisableIRQ(USART2_IRQn);
__HAL_RCC_USART2_FORCE_RESET();
__HAL_RCC_USART2_RELEASE_RESET();
__HAL_RCC_USART2_CLK_DISABLE();
#if defined(USART3)
} else if (self->uart_id == 3) {
#if !defined(STM32F0)
HAL_NVIC_DisableIRQ(USART3_IRQn);
#endif
__HAL_RCC_USART3_FORCE_RESET();
__HAL_RCC_USART3_RELEASE_RESET();
__HAL_RCC_USART3_CLK_DISABLE();
#endif
#if defined(UART4)
} else if (self->uart_id == 4) {
HAL_NVIC_DisableIRQ(UART4_IRQn);
__HAL_RCC_UART4_FORCE_RESET();
__HAL_RCC_UART4_RELEASE_RESET();
__HAL_RCC_UART4_CLK_DISABLE();
#endif
#if defined(USART4)
} else if (self->uart_id == 4) {
__HAL_RCC_USART4_FORCE_RESET();
__HAL_RCC_USART4_RELEASE_RESET();
__HAL_RCC_USART4_CLK_DISABLE();
#endif
#if defined(UART5)
} else if (self->uart_id == 5) {
HAL_NVIC_DisableIRQ(UART5_IRQn);
__HAL_RCC_UART5_FORCE_RESET();
__HAL_RCC_UART5_RELEASE_RESET();
__HAL_RCC_UART5_CLK_DISABLE();
#endif
#if defined(USART5)
} else if (self->uart_id == 5) {
__HAL_RCC_USART5_FORCE_RESET();
__HAL_RCC_USART5_RELEASE_RESET();
__HAL_RCC_USART5_CLK_DISABLE();
#endif
#if defined(UART6)
} else if (self->uart_id == 6) {
HAL_NVIC_DisableIRQ(USART6_IRQn);
__HAL_RCC_USART6_FORCE_RESET();
__HAL_RCC_USART6_RELEASE_RESET();
__HAL_RCC_USART6_CLK_DISABLE();
#endif
#if defined(UART7)
} else if (self->uart_id == 7) {
HAL_NVIC_DisableIRQ(UART7_IRQn);
__HAL_RCC_UART7_FORCE_RESET();
__HAL_RCC_UART7_RELEASE_RESET();
__HAL_RCC_UART7_CLK_DISABLE();
#endif
#if defined(USART7)
} else if (self->uart_id == 7) {
__HAL_RCC_USART7_FORCE_RESET();
__HAL_RCC_USART7_RELEASE_RESET();
__HAL_RCC_USART7_CLK_DISABLE();
#endif
#if defined(UART8)
} else if (self->uart_id == 8) {
HAL_NVIC_DisableIRQ(UART8_IRQn);
__HAL_RCC_UART8_FORCE_RESET();
__HAL_RCC_UART8_RELEASE_RESET();
__HAL_RCC_UART8_CLK_DISABLE();
#endif
#if defined(USART8)
} else if (self->uart_id == 8) {
__HAL_RCC_USART8_FORCE_RESET();
__HAL_RCC_USART8_RELEASE_RESET();
__HAL_RCC_USART8_CLK_DISABLE();
#endif
#if defined(UART9)
} else if (self->uart_id == 9) {
HAL_NVIC_DisableIRQ(UART9_IRQn);
__HAL_RCC_UART9_FORCE_RESET();
__HAL_RCC_UART9_RELEASE_RESET();
__HAL_RCC_UART9_CLK_DISABLE();
#endif
#if defined(UART10)
} else if (self->uart_id == 10) {
HAL_NVIC_DisableIRQ(UART10_IRQn);
__HAL_RCC_UART10_FORCE_RESET();
__HAL_RCC_UART10_RELEASE_RESET();
__HAL_RCC_UART10_CLK_DISABLE();
#endif
}
}
/**
* @brief UART MSP De-Initialization
* This function frees the hardware resources used in this example:
* - Disable the Peripheral's clock
* - Revert GPIO and NVIC configuration to their default state
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
{
switch((uint32_t)huart->Instance)
{
case (uint32_t)USART1 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART1_FORCE_RESET();
__HAL_RCC_USART1_RELEASE_RESET();
__HAL_RCC_USART1_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9 | GPIO_PIN_10);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART1_IRQn);
}
break;
case (uint32_t)USART2 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART2_FORCE_RESET();
__HAL_RCC_USART2_RELEASE_RESET();
__HAL_RCC_USART2_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_5 | GPIO_PIN_6);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART2_IRQn);
}
break;
case (uint32_t)USART3 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART3_FORCE_RESET();
__HAL_RCC_USART3_RELEASE_RESET();
__HAL_RCC_USART3_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_9 | GPIO_PIN_10);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART3_8_IRQn);
}
break;
case (uint32_t)USART4 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART4_FORCE_RESET();
__HAL_RCC_USART4_RELEASE_RESET();
__HAL_RCC_USART4_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART3_8_IRQn);
}
break;
case (uint32_t)USART5 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART5_FORCE_RESET();
__HAL_RCC_USART5_RELEASE_RESET();
__HAL_RCC_USART5_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_3 | GPIO_PIN_4);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART3_8_IRQn);
}
break;
case (uint32_t)USART6 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART6_FORCE_RESET();
__HAL_RCC_USART6_RELEASE_RESET();
__HAL_RCC_USART6_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOF, GPIO_PIN_9 | GPIO_PIN_10);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART3_8_IRQn);
}
break;
case (uint32_t)USART7 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART7_FORCE_RESET();
__HAL_RCC_USART7_RELEASE_RESET();
__HAL_RCC_USART7_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOF, GPIO_PIN_2 | GPIO_PIN_3);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART3_8_IRQn);
}
break;
case (uint32_t)USART8 :
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART8_FORCE_RESET();
__HAL_RCC_USART8_RELEASE_RESET();
__HAL_RCC_USART8_CLK_DISABLE();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx/Rx as alternate function */
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_8 | GPIO_PIN_9);
/*##-3- Disable the NVIC for UART ##########################################*/
IRQ_Managment(__DISABLE, USART3_8_IRQn);
}
break;
}
}
