Initial commit

Core/Src/usart.cpp

@@ -0,0 +1,51 @@
+#include "usart.hpp"
+
+#include <algorithm>
+#include <stdint.h>
+
+#include <ranges>
+#include <string_view>
+
+#include "stm32f4xx_hal_uart.h"
+#include "usart.h"
+
+namespace driver::usart {
+
+constexpr const uint8_t TX_BUFSIZE{20};
+
+Usart::Usart(USART_TypeDef* usart, uint32_t baudRate, uint32_t wordLength, uint32_t stopBits,
+             uint32_t parity, uint32_t mode, uint32_t hwFlowCtl, uint32_t overSampling)
+    : mHandle{.Instance = usart,
+              .Init{.BaudRate     = baudRate,
+                    .WordLength   = wordLength,
+                    .StopBits     = stopBits,
+                    .Parity       = parity,
+                    .Mode         = mode,
+                    .HwFlowCtl    = hwFlowCtl,
+                    .OverSampling = overSampling}} {}
+
+bool Usart::init() {
+    return HAL_UART_Init(&mHandle) != HAL_OK;
+}
+
+void Usart::print(const std::string_view str) {
+    tx(str);
+};
+
+void Usart::println(const std::string_view str) {
+    print(str);
+    tx("\r\n");
+}
+
+void Usart::flush() {
+
+};
+
+void Usart::tx(const std::string_view range) {
+    for (uint32_t pt{0}; pt <= range.size(); pt += TX_BUFSIZE) {
+        HAL_UART_Transmit(&mHandle, reinterpret_cast<const uint8_t*>(range.begin() + pt),
+                          TX_BUFSIZE, 200);
+    }
+};
+
+}  // namespace driver::usart