帮我写一段STM32f103zet6，ad7606串行采集电压的程序

好的，这里是一个基于STM32f103zet6和AD7606的串行采集电压的程序，仅供参考：

#include "stm32f10x.h"
#include "stm32f10x_spi.h"

#define ADC_CS_Pin GPIO_Pin_12
#define ADC_CS_Port GPIOB

void ADC_Init(void) {
    GPIO_InitTypeDef GPIO_InitStruct;
    SPI_InitTypeDef SPI_InitStruct;

    // Enable clock for GPIOB
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    // Configure PB12 (ADC_CS_Pin) as output
    GPIO_InitStruct.GPIO_Pin = ADC_CS_Pin;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(ADC_CS_Port, &GPIO_InitStruct);

    // Enable clock for SPI1
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);

    // Configure SPI1 pins: SCK, MISO and MOSI
    GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStruct);

    // Configure SPI1
    SPI_InitStruct.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
    SPI_InitStruct.SPI_Mode = SPI_Mode_Master;
    SPI_InitStruct.SPI_DataSize = SPI_DataSize_16b;
    SPI_InitStruct.SPI_CPOL = SPI_CPOL_Low;
    SPI_InitStruct.SPI_CPHA = SPI_CPHA_1Edge;
    SPI_InitStruct.SPI_NSS = SPI_NSS_Soft;
    SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_32;
    SPI_InitStruct.SPI_FirstBit = SPI_FirstBit_MSB;
    SPI_Init(SPI1, &SPI_InitStruct);

    // Enable SPI1
    SPI_Cmd(SPI1, ENABLE);
}

uint16_t ADC_Read(uint8_t channel) {
    uint16_t value;

    // Select ADC channel
    GPIO_ResetBits(ADC_CS_Port, ADC_CS_Pin);
    SPI_I2S_SendData(SPI1, (uint16_t)(0x8400 | (channel << 8)));
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET);
    value = SPI_I2S_ReceiveData(SPI1);
    GPIO_SetBits(ADC_CS_Port, ADC_CS_Pin);

    // Read ADC value
    GPIO_ResetBits(ADC_CS_Port, ADC_CS_Pin);
    SPI_I2S_SendData(SPI1, 0x0000);
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET);
    value = SPI_I2S_ReceiveData(SPI1);
    GPIO_SetBits(ADC_CS_Port, ADC_CS_Pin);

    return value;
}

int main(void) {
    ADC_Init();

    while (1) {
        uint16_t value = ADC_Read(0);
        // Do something with the ADC value
    }
}

这个程序通过SPI1与AD7606进行通信，使用PB12作为片选信号。在主函数中，可以通过调用`ADC_Read()`函数来读取AD7606的采样值，并进行后续的处理。注意，在实际应用中，需要根据具体的电路连接和ADC设置进行相应的修改。