写程序：voidSPIx_WriteByte(u8 TxData){u8 j=0;SPI_FLASH_CLK_LOW(); //clk=0if(TxData&0x80){SPI_FLASH_DI_HIGH();} //mosi=1else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1，一个上升沿写入一位for(j=0;j<5;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0if(TxData & 0x40){SPI_FLASH_DI_HIGH();} //mosi=1else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH();for(j=0;j<5;j++);SPI_FLASH_CLK_LOW();if(TxData&0x20){SPI_FLASH_DI_HIGH();} //mosi=1else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH();for(j=0;j<5;j++);SPI_FLASH_CLK_LOW();if(TxData&0x10){SPI_FLASH_DI_HIGH();} //mosi=1else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH();for(j=0;j<5;j++);SPI_FLASH_CLK_LOW();if(TxData&0x08){SPI_FLASH_DI_HIGH();} //mosi=1else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH();for(j=0;j<5;j++);SPI_FLASH_CLK_LOW();if(TxData&0x04){SPI_FLASH_DI_HIGH();} //mosi=1 else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH();for(j=0;j<5;j++);SPI_FLASH_CLK_LOW();if(TxData&0x02){SPI_FLASH_DI_HIGH();} //mosi=1 else{SPI_FLASH_DI_LOW();} //mosi=0for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH();for(j=0;j<5;j++);SPI_FLASH_CLK_LOW(); //clk=0if(TxData&0x01){SPI_FLASH_DI_HIGH();}else{SPI_FLASH_DI_LOW();}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0}读程序0x80==0x80u8 SPIx_ReadByte(void){u8i=0,j=0;for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1if(GPIOC->IDR&0x80==0x80){i=i+0x80;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0,下降沿读数for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x40;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x20;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x10;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x08;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x04;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x02;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x80==0x80){i=i+0x01;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();returni;}读程序0x40==0x40u8 SPIx_ReadByte(void){u8i=0,j=0;for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1if(GPIOC->IDR&0x40==0x40){i=i+0x80;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0,下降沿读数for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x40;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x20;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x10;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x08;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x04;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x02;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x40==0x40){i=i+0x01;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();returni;}读程序0x20==0x20u8 SPIx_ReadByte(void){u8i=0,j=0;for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1if(GPIOC->IDR&0x20==0x20){i=i+0x80;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0,下降沿读数for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x40;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x20;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x10;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x08;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x04;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x02;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x20==0x20){i=i+0x01;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();returni;}读程序0x10==0x10读程序0x08==0x08读程序0x04==0x04读程序0x02==0x02u8 SPIx_ReadByte(void){u8i=0,j=0;for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1if(GPIOC->IDR&0x02==0x02){i=i+0x80;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0,下降沿读数for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x40;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x20;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x10;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x08;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x04;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x02;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x02==0x02){i=i+0x01;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();returni;}读程序0x01==0x01u8 SPIx_ReadByte(void){u8i=0,j=0;for(j=0;j<3;j++); //延时SPI_FLASH_CLK_HIGH(); //clk=1if(GPIOC->IDR&0x01==0x01){i=i+0x80;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); //clk=0,下降沿读数for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x40;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x20;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x10;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x08;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x04;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x02;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW();for(j=0;j<5;j++);SPI_FLASH_CLK_HIGH();if(GPIOC->IDR&0x01==0x01){i=i+0x01;}for(j=0;j<3;j++); //延时SPI_FLASH_CLK_LOW(); returni;}。