芯片复制STC32单片机+LINK1D仿真流程介绍
| 芯片复制代码是坛里前辈写的，实验液晶不能显示，检查硬件没有错误，始终不能解决问题。无奈之下求助DpSk,生成的代码编译时出错，提示67行数据类型错误，将66行子函数的参数rs数据类型由bit改为unsigned char后编译成功，下载到单片机显示正常。芯片复制AI生成的代码也不错。 #include <STC15.h> #include <intrins.h> #define PCF_ADDR 0x4E sbit SDA = P0^1; // I2C数据线 sbit SCL = P0^0; // I2C时钟线 void delay_us(unsigned int us) { while (us--) { _nop_(); _nop_(); _nop_(); _nop_(); } } void delay_ms(unsigned int ms) { unsigned int i, j; for (i = 0; i < ms; i++) for (j = 0; j < 114; j++); } void I2C_Start() { SDA = 1; SCL = 1; delay_us(5); SDA = 0; delay_us(5); SCL = 0; } void I2C_Stop() { SDA = 0; SCL = 1; delay_us(5); SDA = 1; delay_us(5); } void I2C_WriteByte(unsigned char dat) { unsigned char i; for (i = 0; i < 8; i++) { SDA = (dat & 0x80) ? 1 : 0; dat <<= 1; SCL = 1; delay_us(5); SCL = 0; delay_us(5); } SDA = 1; // 释放总线等待ACK SCL = 1; delay_us(5); SCL = 0; } void PCF8574_Write(unsigned char dat) { I2C_Start(); I2C_WriteByte(PCF_ADDR); I2C_WriteByte(dat); I2C_Stop(); } void lcd_send_nibble(unsigned char nibble, unsigned char rs) { unsigned char data_pcf; // 数据位: P4-P7, RS: P0, E: P2, Backlight: P3 (开启) data_pcf = (nibble << 4) | (rs << 0) | (1 << 3); // E下降沿 PCF8574_Write(data_pcf & ~(1 << 2)); // E=0 delay_us(1); PCF8574_Write(data_pcf | (1 << 2)); // E=1 delay_us(1); PCF8574_Write(data_pcf & ~(1 << 2)); // E=0 delay_us(100); } void lcd_send_byte(unsigned char dat, bit rs) { lcd_send_nibble(dat >> 4, rs); // 高四位 lcd_send_nibble(dat & 0x0F, rs); // 低四位 } |
芯片解密
