85-示波器-CDC虚拟显示，AI8051U实验箱演示程序
85-示波器-CDC虚拟显示，AI8051U实验箱演示程序主程序main.C代码如下（汇编版本在附件中）：
/*---------------------------------------------------------------------*/
/* --- Web: www.STCAI.com ---------------------------------------------*/
/* --- BBS: www.STCAIMCU.com-----------------------------------------*/
/* 如果要在程序中使用此代码,请在程序中注明使用了STC的资料及程序 */
/*---------------------------------------------------------------------*/
/*************功能说明 **************
#include "../comm/AI8051U.h"
#include "stc.h"
#include "uart.h"
#include "usb.h"
BOOL RxFlag;
BYTE RxCount;
BYTE xdata RxBuffer;
BYTE xdata TxBuffer;
void uart_init()
{
RxFlag = 0;
RxCount = 0;
}
void uart_send(int size)
{
BYTE cnt;
int addr;
IE2 &= ~EUSB;
usb_write_reg(INDEX, 1);
addr = 0;
do
{
cnt = size > 64 ? 64 : size;
while (usb_read_reg(INCSR1) & INIPRDY);
usb_bulk_intr_in(&TxBuffer, cnt, 1);
addr += cnt;
size -= cnt;
} while (cnt >= 64);
IE2 |= EUSB;
}
void uart_recv_done()
{
IE2 &= ~EUSB;
RxFlag = 0;
usb_write_reg(INDEX, 1);
usb_write_reg(OUTCSR1, 0);
IE2 |= EUSB;
}
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