Add template

UART/uart.c

@@ -0,0 +1,44 @@
+/*
+ * uart.c
+ *
+ *  Created on: Dec 15, 2014
+ *      Author: shino-chan
+ */
+//USART2
+//PA2 => TX
+//PA3 => RX
+//Alternate Function 7
+#include "uart.h"
+#include <stm32f4xx.h>
+
+void initUART() {
+	__DSB();
+	RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
+	RCC->APB1ENR |= RCC_APB1ENR_USART2EN;
+	__DSB();
+
+	GPIOA->MODER |= (1<<5);
+	GPIOA->AFR[0] |= (7<<8); //Enable Clock
+	GPIOA->MODER |= (1<<5);
+	GPIOA->AFR[0] |= (7<<8);
+	asm("nop");
+	asm("nop");
+	asm("nop");
+	USART2->BRR = 0x1117; //Baudrate  273.4375=>0x1117 9600baud bei 42MHz Periph
+	USART2->CR1 = USART_CR1_UE | USART_CR1_TE;
+
+}
+void sendChar(char c) {
+	while(!(USART2->SR & USART_SR_TXE));
+	USART2->DR = c;
+
+}
+void sendString(char* s, int count) {
+	int i = 0;
+	for (i = 0; i < count; i++,s++)
+	{
+		if (!(*s))
+			break;
+		sendChar(*s);
+	}
+}

UART/uart.h

@@ -0,0 +1,17 @@
+/*
+ * uart.h
+ *
+ *  Created on: Dec 15, 2014
+ *      Author: shino-chan
+ */
+
+#ifndef UART_UART_H_
+#define UART_UART_H_
+
+void initUART();
+void sendChar(char c);
+void sendString(char* s, int count);
+#ifdef _P20N_
+void yuri();
+#endif
+#endif /* UART_UART_H_ */