Files
Cpp-in-Embedded-Systems/Chapter04/bare/hal/uart/src/uart_stm32.cpp
2024-04-28 16:44:50 +02:00

30 lines
925 B
C++

#include <uart_stm32.hpp>
hal::uart_stm32::uart_stm32(USART_TypeDef *inst, std::uint32_t baud)
: instance_(inst), baudrate_(baud)
{
}
void hal::uart_stm32::init()
{
huart_.Instance = USART2;
huart_.Init.BaudRate = baudrate_;
huart_.Init.WordLength = UART_WORDLENGTH_8B;
huart_.Init.StopBits = UART_STOPBITS_1;
huart_.Init.Parity = UART_PARITY_NONE;
huart_.Init.Mode = UART_MODE_TX_RX;
huart_.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart_.Init.OverSampling = UART_OVERSAMPLING_16;
huart_.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart_.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
// TODO: add GPIO initialization for real hardware
huart_.MspInitCallback = NULL;
HAL_UART_Init(&huart_);
}
void hal::uart_stm32::putchar(char tx_char)
{
HAL_UART_Transmit(&huart_, reinterpret_cast<uint8_t *>(&tx_char), 1,
HAL_MAX_DELAY);
}