/* Martin Thomas 4/2009, 3/2010 */
#include "stm32f10x.h"
#include "comm.h"

#define USARTx USART1

int
comm_test(void) {
    return (USART_GetFlagStatus(USARTx, USART_FLAG_RXNE) == RESET) ? 0 : 1;
}

char
comm_get(void) {
    while (USART_GetFlagStatus(USARTx, USART_FLAG_RXNE) == RESET)
	;
    
    return (char)USART_ReceiveData(USARTx);
}

void
comm_put(char d) {
    while(USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET)
	;
    
    USART_SendData(USARTx, (uint16_t)d);
}

void
comm_puts(const char* s) {
    char c;
    while ((c = *s++) != '\0') {
	comm_put(c);
    }
}

void
comm_init (void) {
    // already done in main.c
}