想用9200做一个串口,可发送一直无法完成,下面为简单的代码:
void Uart1_Init(void)
{
//Configure PIO controllers to drive US1 signals
AT91F_US1_CfgPIO ();
//Enable Peripheral clock in PMC for US0
AT91F_US1_CfgPMC();
AT91F_US_Configure (
(AT91PS_USART) AT91C_BASE_US1, // US1 base address
60000000, //60 MHz
AT91C_US_ASYNC_MODE ,//AT91C_US_CHMODE_NORMAL | AT91C_US_PAR_NONE , // mode Register to be programmed
115200 , // baudrate to be programmed
0);
AT91F_US_EnableTx((AT91PS_USART)AT91C_BASE_US1);
}
void AT91F_US1_Printk(
char *buffer) // \arg pointer to a string ending by \0
{
while(*buffer != '\0') {
while (!AT91F_US_TxReady((AT91PS_USART)AT91C_BASE_US1));
AT91F_US_PutChar((AT91PS_USART)AT91C_BASE_US1, *buffer++);
}
}
int main()
{
Uart1_Init();
while(1)
{
delay_s(5);
AT91F_US1_Printk("\n\rBasicBoot Successfull: Enter main()_US1\n\r");
}
}
可一直没有数据输出,谢谢各位了!
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