擎天柱学习：《8051U深度入门到32位51大型实战教学视频》打卡
第三集 擎天柱点亮LED灯，测试通过：代码：
#include "ai8051u.h" //调用头文件
void main(void)
{
P2M0 = 0; //P2端口(P20-P27)为准双向口
P2M1 = 0;
while(1)
{
P20 = 0; //P20端口输出0V
P21 = 0; //P21端口输出0V
}
}
第四集 擎天柱USB-CDC 不停电下载，测试通过：
代码
#include "ai8051u.h" //调用头文件
#include "stc32_stc8_usb.h" //调用头文件
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void main(void)
{
P_SW2 |= 0x80; //B7位写1，使能访问XFR
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
EA = 1; //IE |= 0X80;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady)
{
USB_SendData(UsbOutBuffer,OutNumber); //发送数据缓冲区，长度（接收数据原样返回, 用于测试）
usb_OUT_done();
}
P20 = 0; //P00端口输出0V
P22 = 0; //P02端口输出0V
}
}
第五集：擎天柱 C语言基础，测试通过：
main.c代码：
#include "ai8051u.h" //调用头文件
#include "stc32_stc8_usb.h" //调用头文件
#define u8unsigned char
#define u16 unsigned int
u8 X = 200;
u8 Y = 10;
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void main(void)
{
P_SW2 |= 0x80; //B7位写1，使能访问XFR
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
EA = 1; //IE |= 0X80;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady) //如果接收到了数据
{
//USB_SendData(UsbOutBuffer,OutNumber); //发送数据缓冲区，长度
if( X && Y )
{
printf("条件为真\r\n");
}
// else
// {
// printf("条件为假\r\n");
// }
// printf("X / Y = %u \r\n",(u16)(X/Y));
// printf("X %% Y = %u \r\n",(u16)(X%Y));
usb_OUT_done();
}
}
}
第六集：擎天柱IO输入输出，测试通过：
main.c 代码
#include "ai8051u.h" //调用头文件
#include "stc32_stc8_usb.h" //调用头文件
#include "intrins.h" //d调用头文件
#define u8unsigned char
#define u16 unsigned int
u8 state = 0;
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void Delay20ms(void) //@24.000MHzDelay20ms();
{
unsigned long edata i;
_nop_();
_nop_();
i = 119998UL;
while (i) i--;
}
void main(void)
{
WTST = 0; //设置程序指令延时参数，赋值为0可将CPU执行指令的速度设置为最快
EAXFR = 1; //扩展寄存器(XFR)访问使能
CKCON = 0; //提高访问XRAM速度
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
EA = 1; //IE |= 0X80;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady) //如果接收到了数据
{
//USB_SendData(UsbOutBuffer,OutNumber); //发送数据缓冲区，长度（接收数据原样返回, 用于测试）
usb_OUT_done(); //
}
// //任务1：按下P32按钮灯亮，松开P32按钮灯灭；
// if( P32 == 0 ) //判断P32按钮是否按下
// {
// P20 = 0;
// }
// else
// {
// P20 = 1;
// }
//
//任务2：按下P32按钮灯灭，松开P32按钮灯亮；
// if( P32 == 1 ) //判断P32按钮是否按下
// {
// P20 = 0;
// }
// else
// {
// P20 = 1;
// }
//任务3：按一下灯亮，按一下灯灭
if( P32 == 0 ) //判断P32按钮是否按下
{
Delay20ms(); //延时20ms消抖
if( P32 == 0 )
{
state = !state; //变量取反 0 1 0 1 0 1
P20 = state;
printf("state:%d\r\n",(int)state);
while( P32 == 0 ); //等待P32松开
}
}
}
}
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