我想問一下,我如何通過usart作爲整數發送數據,我的意思是存儲數字的變量。我能夠發送字符變量,但終端顯示我ascii這個數字的表示,我需要看到號碼。 我編輯的代碼就像下面所示,但它給我的錯誤:「衝突的類型‘USART_Transmit’」USART格式數據類型
#include <avr/io.h>
#include <util/delay.h>
#define FOSC 8000000// Clock Speed
#define BAUD 9600
#define MYUBRR FOSC/16/BAUD-1
void USART_Init(unsigned int ubrr);
void USART_Transmit(unsigned char data);
unsigned char USART_Receive(void);
int main(void)
{
unsigned char str[5] = "serus";
unsigned char strLenght = 5;
unsigned int i = 47;
USART_Init (MYUBRR);
//USART_Transmit('S');
while(1)
{
/*USART_Transmit(str[i++]);
if(i >= strLenght)
i = 0;*/
USART_Transmit(i);
_delay_ms(250);
}
return(0);
}
void USART_Init(unsigned int ubrr)
{
/* Set baud rate */
UBRR0H = (unsigned char)(ubrr>>8);
UBRR0L = (unsigned char)ubrr;
/* Enable receiver and transmitter */
UCSR0B = (1<<RXEN)|(1<<TXEN);
/* Set frame format: 8data, 2stop bit */
UCSR0C = (1<<USBS)|(3<<UCSZ0);
}
void USART_Transmit(unsigned int data)
{
/* Wait for empty transmit buffer */
while (!(UCSR0A & (1<<UDRE)))
;
/* Put data into buffer, sends the data */
UDR0 = data;
}
unsigned char USART_Receive(void)
{
/* Wait for data to be received */
while (!(UCSR0A & (1<<RXC)))
;
/* Get and return received data from buffer */
return UDR0;
}
你有任何想法有什麼不對嗎? PS:我希望你明白我想說明什麼。
我的代碼是現在這個樣子:https://paste.ofcode.org/x2pAV3VaFYGJBzKyDXPyyr aaaand它的作品!謝謝 – Branis