给我一个stm32f103c8t6开发pn532的程序

很抱歉，由于PN532的接口类型和通信协议不同，不同的PN532型号和单片机型号实现PN532的程序会有所不同。以下是一份基于STM32F103C8T6和PN532使用SPI接口通信的代码，仅供参考：

#include "stm32f10x.h"
#include "pn532.h"
#include "spi.h"

void PN532_Init(void)
{
    PN532_Reset();
}

void PN532_Reset(void)
{
    // PN532复位脚置低
    GPIO_ResetBits(GPIOA, GPIO_Pin_1);
    delay_ms(100);
    // PN532复位脚置高
    GPIO_SetBits(GPIOA, GPIO_Pin_1);
    delay_ms(100);
}

void PN532_WriteCommand(uint8_t* cmd, uint8_t len)
{
    uint8_t checksum = 0xFF - PN532_PREAMBLE - PN532_PREAMBLE - PN532_STARTCODE2 - len;
    PN532_SPI_RW(PN532_PREAMBLE);
    PN532_SPI_RW(PN532_PREAMBLE);
    PN532_SPI_RW(PN532_STARTCODE2);
    PN532_SPI_RW(len);
    PN532_SPI_RW(~len + 1);
    PN532_SPI_RW(PN532_HOSTTOPN532);
    checksum = PN532_HOSTTOPN532;
    for (int i = 0; i < len; i++)
    {
        PN532_SPI_RW(cmd[i]);
        checksum += cmd[i];
    }
    PN532_SPI_RW(~checksum);
    PN532_SPI_RW(PN532_POSTAMBLE);
}

uint8_t PN532_ReadAck(void)
{
    uint8_t ack_buf[6] = {0};
    uint8_t len = 6;
    uint8_t i = 0;
    uint8_t ack[] = {0, 0, 0xFF, 0, 0xFF, 0};
    while (i < len)
    {
        ack_buf[i] = PN532_SPI_RW(0);
        i++;
    }
    if (memcmp(ack_buf, ack, len) == 0)
    {
        return PN532_STATUS_OK;
    }
    return PN532_STATUS_ERROR;
}

uint8_t PN532_SPI_RW(uint8_t data)
{
    uint8_t receive_data = 0;
    SPI_I2S_SendData(SPI1, data);
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
    receive_data = SPI_I2S_ReceiveData(SPI1);
    return receive_data;
}

void PN532_GetFirmwareVersion(void)
{
    uint8_t cmd[] = { PN532_COMMAND_GETFIRMWAREVERSION };
    PN532_WriteCommand(cmd, sizeof(cmd));
    if (PN532_ReadAck() != PN532_STATUS_OK)
    {
        return;
    }
    uint8_t response[12] = {0};
    uint8_t len = sizeof(response);
    for (int i = 0; i < len; i++)
    {
        response[i] = PN532_SPI_RW(0);
    }
    uint32_t IC = ((uint32_t)response[0] << 24) | ((uint32_t)response[1] << 16)
                | ((uint32_t)response[2] << 8) | response[3];
    uint8_t ver = response[4];
    uint8_t rev = response[5];
    uint8_t support[] = { response[6], response[7], response[8], response[9] };
    printf("IC: %08X\n", IC);
    printf("Firmware Version: %d.%d\n", ver, rev);
    printf("Support: %02X %02X %02X %02X\n", support[0], support[1], support[2], support[3]);
}

int main(void)
{
    SPI_Config();
    PN532_Init();
    while (1)
    {
        PN532_GetFirmwareVersion();
        delay_ms(1000);
    }
}

这份程序主要实现了PN532的初始化、复位、写命令、读应答、发送获取固件版本命令和读取固件版本信息等功能。其中，SPI_Config()函数需要根据具体的硬件连接情况进行相应的设置。希望对你有所帮助。