[APM32F0] APM32F0_SPI半双工模式_MISO、SCLK、CSS能否复用成其他功能？

void APM_MINI_SPIInit(void)

{

GPIO_Config_T gpioConfig;

SPI_Config_T spiConfig;

 

/** Enable related clock*/

RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_SPI1);

RCM_EnableAHBPeriphClock(RCM_AHB_PERIPH_GPIOA);

RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_SYSCFG);



 /*屏蔽MISO、SCLK的IO配置*/  

//    GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_5, GPIO_AF_PIN0);

//    GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_6, GPIO_AF_PIN0);

GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_7, GPIO_AF_PIN0);

/** config PIN_5->SCK , PIN_7->MOSI*/ 

gpioConfig.pin = GPIO_PIN_7;    

gpioConfig.mode = GPIO_MODE_AF;

gpioConfig.outtype = GPIO_OUT_TYPE_PP;

gpioConfig.speed = GPIO_SPEED_50MHz;

gpioConfig.pupd = GPIO_PUPD_PU;

GPIO_Config(GPIOA, &gpioConfig);



//     /** config PIN_4->NSS*/

//    gpioConfig.pin =  GPIO_PIN_4;

//    gpioConfig.outtype = GPIO_OUT_TYPE_PP;

//    gpioConfig.speed = GPIO_SPEED_50MHz;

//    gpioConfig.pupd = GPIO_PUPD_PU;

//    gpioConfig.mode = GPIO_MODE_OUT;

//    GPIO_Config(GPIOA, &gpioConfig);

//    GPIO_SetBit(GPIOA, GPIO_PIN_4);

//

//    /** config PIN_6  MISO*/

//    gpioConfig.pin = GPIO_PIN_6;

//    gpioConfig.mode = GPIO_MODE_AF;

//    gpioConfig.pupd = GPIO_PUPD_PU;

//    gpioConfig.speed = GPIO_SPEED_50MHz;

//    GPIO_Config(GPIOA, &gpioConfig);

/** SPI RESET*/

SPI_Reset(SPI1);

SPI_ConfigStructInit(&spiConfig);



/** SPI configuration*/

spiConfig.polarity = SPI_CLKPOL_LOW;

spiConfig.direction = SPI_DIRECTION_1LINE_TX;/*单线 发送*/

spiConfig.mode = SPI_MODE_MASTER;/*主模式*/

spiConfig.phase = SPI_CLKPHA_1EDGE;

spiConfig.slaveSelect = SPI_SSC_ENABLE;

spiConfig.baudrateDiv = SPI_BAUDRATE_DIV_64;

spiConfig.length = SPI_DATA_LENGHT_8B;

SPI1->CTRL1_B.ISS = SET;

SPI_Config(SPI1, &spiConfig);

SPI_Enable(SPI1);/*SPI使能*/



}