Page 186 - 3-1

#define DIR485_H GPIOC->BSRR=1<<1
#define DIR485_L GPIOC->BRR=1<<1

#endif

#include "stm32f10x.h"
#include "USART.h"

void USART1_SendByte(u16 Data)
{
while (!(USART1->SR & USART_FLAG_TXE));
USART1->DR = (Data & (uint16_t)0x01FF);

}
void USART1Write(u8* data,u16 len)
{
u16 i;
// DIR485_H ;
for (i=0; i<len-1; i++){
USART1_SendByte(data[i]);
}
// Delay10us(1000);
// DIR485_L;
}
void USART1_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 9600 ;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx |
USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

- 186 -