uart.rar_DM6446 uart_dm6446_dm6446 串口

#include "davincievm_uart.h" Uint8 rx[256]; Int16 rev=0,trx=0,flag = 0; /* ------------------------------------------------------------------------ * * * * uart_test( ) * * * * ------------------------------------------------------------------------ */ void uart_test() { Int16 i; UART_Handle UartHandle; UartHandle = DAVINCIEVM_UART_open( 0, 115200 ); /* Pre configure the buffers */ for ( i = 0 ; i < 0x100 ; i++ ) { rx[i] = 0; } for (;;) { /* RX */ while( DAVINCIEVM_UART_rcvReady( UartHandle ) ); // Check for Rx ready { DAVINCIEVM_UART_getChar( UartHandle, &rx[rev] ); } while( DAVINCIEVM_UART_xmtReady( UartHandle ) ); // Check for TX ready { DAVINCIEVM_UART_putChar( UartHandle, rx[rev] ); // TX 1 byte } rev++; if(rev == 0x100) { rev = 0; } } }