GD32F305SPI没有时钟信号

只看该作者 · 2023-7-20 14:38

使用了官方例程，芯片也换过，用示波器就是没检测到sck信号而且使用这个历程之后到spi0_receive_array[receive_cnt]= spi_i2s_data_receive(spi0_send_array[send_cnt]);这行代码就不能往下执行了，send_n只接收一次
下面是代码
这是SPI的配置spi.c
#include "SPI.h"
#include "gd32f30x_spi.h"
#include "systick.h"

void spi0_init(void)
{
       rcu_periph_clock_enable(RCU_GPIOA);
   rcu_periph_clock_enable(SPI0);
   rcu_periph_clock_enable(RCU_AF);

/*SCK->PA5  MISO->PA6  MOSI->PA7 SPI1:MASTER*/
gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_5 | GPIO_PIN_7);
gpio_init(GPIOA, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_6);

spi_parameter_struct spi_init_struct;

spi_i2s_deinit(SPI0);

  spi_init_struct.trans_mode = SPI_TRANSMODE_FULLDUPLEX;
  spi_init_struct.device_mode  = SPI_MASTER;
spi_init_struct.nss       = SPI_NSS_SOFT;
spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
spi_init_struct.frame_size = SPI_FRAMESIZE_8BIT;
spi_init_struct.endian    = SPI_ENDIAN_MSB;
spi_init_struct.prescale    = SPI_PSC_8;

spi_enable(SPI0);
}

void spi1_init(void)
{
       rcu_periph_clock_enable(RCU_GPIOB);
   rcu_periph_clock_enable(SPI1);
   rcu_periph_clock_enable(RCU_AF);

/*SCK->PB13 MISO->PB14  MOSI->PB15 SPI1:SLAVE*/
gpio_init(GPIOB, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_13 | GPIO_PIN_14);
gpio_init(GPIOB, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_15);

spi_parameter_struct spi_init_struct;

spi_i2s_deinit(SPI1);

  spi_init_struct.trans_mode = SPI_TRANSMODE_FULLDUPLEX;
  spi_init_struct.device_mode  = SPI_SLAVE;
spi_init_struct.nss       = SPI_NSS_SOFT;
spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
spi_init_struct.frame_size = SPI_FRAMESIZE_8BIT;
spi_init_struct.endian    = SPI_ENDIAN_MSB;

spi_enable(SPI1);
}
下面是主函数的代码 main.c

#include "gd32f30x.h"
#include "systick.h"
#include "Alarm.h"
#include "SPI.h"

extern void Task_Init(void);
extern void Task_Idle(void);

extern void spi1_init(void);

#define NUM 10

unsigned char spi0_send_array[NUM] = {0x00A1,0x00A2,0x00A3,0x00A4,0x00A5,0x00A6,0x00A7,0x00A8,0x00A9,0x00AA};
unsigned char spi1_send_array[NUM] = {0x00B1,0x00B2,0x00B3,0x00B4,0x00B5,0x00B6,0x00B7,0x00B8,0x00B9,0x00BB};

unsigned char spi0_receive_array[NUM];
unsigned char spi1_receive_array[NUM];
unsigned char send_cnt, receive_cnt;

int main(void)
{

systick_config();

spi0_init();
spi1_init();

while(send_cnt<NUM)
{
while(RESET == spi_i2s_flag_get(SPI0,SPI_FLAG_TBE))
spi_i2s_data_transmit(SPI1,spi0_send_array[send_cnt]);
while(RESET == spi_i2s_flag_get(SPI1,SPI_FLAG_TBE))
spi_i2s_data_transmit(SPI1,spi1_send_array[send_cnt]);
send_cnt++;

   while(RESET == spi_i2s_flag_get(SPI0,SPI_FLAG_RBNE))
spi0_receive_array[receive_cnt]= spi_i2s_data_receive(spi0_send_array[send_cnt]);
   while(RESET == spi_i2s_flag_get(SPI1,SPI_FLAG_RBNE))
spi1_receive_array[receive_cnt] = spi_i2s_data_receive(spi1_send_array[send_cnt]);

receive_cnt ++;
}
   return 0;
}