STM8 RC522 读写IC卡程序
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#include "stm8s.h"
#include "uart.h"
void Delay(u32 nCount);
extern u8 RxBuffer[RxBufferSize];
extern u8 UART_RX_NUM;
unsigned char CT[2];//卡类型
unsigned char SN[4]; //卡号
unsigned char write[16] =
{0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x10}; unsigned char read[16] =
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; unsigned char key[6] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
#define countof(a) (sizeof(a) / sizeof(*(a)))
#define BufferSize (countof(Tx_Buffer)-1)
u8 Tx_Buffer[] = "STM8S RFID TEST";
u8 Rx_Buffer[BufferSize];
u32 FLASH_ID ;
void cardNo2String(u8 *cardNo, u8 *str);
void main(void)
{
unsigned char status;
/*设置内部时钟16M为主时钟*/
CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
status = memcmp(read,write,16);
GPIO_DeInit(GPIOA);
GPIO_DeInit(GPIOC);
Uart_Init();
GPIO_Init( GPIOA, GPIO_PIN_4, GPIO_MODE_OUT_PP_HIGH_FAST);
InitRc522();
UART2_SendString(Tx_Buffer,BufferSize);
while(1)
{
status = PcdRequest(PICC_REQALL,CT); /*扫描卡*/
status = PcdAnticoll(SN); /*防冲撞*/
if (status==MI_OK)
{
GPIO_LOW(GPIOA, GPIO_PIN_4); //寻卡成功
UART2_SendString(Tx_Buffer, 17);
Reset_RC522();
}
else
{
GPIO_HIGH(GPIOA, GPIO_PIN_4);
}
}
}
void Delay(u32 nCount)
{
while (nCount != 0)
{
nCount--;
}
}
void Hex2String(u8 hex,u8 *str)
{
str[0] = (hex / 100) + '0';
str[1] = (hex % 100 / 10) + '0';
str[2] = (hex % 10) + '0';
}
void cardNo2String(u8 *cardNo, u8 *str)
{
u8 Count = 0;
for(Count = 0; Count < 4; Count++)
{
Hex2String(cardNo[Count], str + Count * 4);
if(Count == 3)
{
str[15] = '\n';
}
else
{
str[Count * 4 + 3] = ':';
}
}
}
void delay_ns(u32 ns)
for(i=0;i { asm("nop"); asm("nop"); asm("nop"); } } u8 SPIWriteByte(u8 Byte) { u8 tmp; while (SPI_GetFlagStatus( SPI_FLAG_TXE) == RESET); SPI_SendData(Byte); if (SPI_GetFlagStatus(SPI_FLAG_RXNE)) { tmp = SPI_ReceiveData(); } return tmp; } void SPI2_Init(void) { SPI_DeInit(); SPI_Init( SPI_FIRSTBIT_MSB, //帧模式，先发送MSB还是LSB SPI_BAUDRATEPRESCALER_8, //波特率分频值 SPI_MODE_MASTER, //模式，主从模式 SPI_CLOCKPOLARITY_LOW, //时钟极性，空闲时SCK为高/空闲时SCK为低 SPI_CLOCKPHASE_1EDGE, //数据采样的边沿选择 SPI_DATADIRECTION_2LINES_FULLDUPLEX, //双线单向数据模式，使用C6/C7两条线，数据传输方向位单向 SPI_NSS_SOFT, //软件从设备 0x07); SPI_Cmd(ENABLE); } void InitRc522(void) { SPI2_Init(); PcdReset(); PcdAntennaOff(); PcdAntennaOn(); M500PcdConfigISOType( 'A' ); }