求助，F767开发板SPI问题,附代码，请大神帮忙。想通过764的SPI接口控制一个外部的DAC芯片，按照芯片的F103例子进行了移植，可...

之心asd · 发表于 2020-4-9 10:43:52

想通过764的SPI接口控制一个外部的DAC芯片，按照芯片的F103例子进行了移植，可是实验中芯片没有反映。不知道哪里出了问题。DAC板子是TLV65610.

<div>/////TLV56.C</div><div>#include "TLV56xx.H"
</div>#include "delay.h"
void DAC_Tlv56xx_Init(void)
{
int i;
GPIO_InitTypeDef GPIO_InitStructure;
__HAL_RCC_GPIOB_CLK_ENABLE(); //Ê¹ÄÜPC¶Ë¿ÚÊ±ÖÓ
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
GPIO_InitStructure.Pin = GPIO_PIN_9|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP; //ÍÆÍìÊä³ö
GPIO_InitStructure.Speed = GPIO_SPEED_FAST; //IO¿ÚËÙ¶ÈÎª50MHz
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure); //¸ù¾ÝÉè¶¨²ÎÊý³õÊ¼»¯GPIOE
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_9|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15,GPIO_PIN_RESET); //PBA Êä³ö¸ß
GPIO_InitStructure.Pin = GPIO_PIN_7;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP; //ÍÆÍìÊä³ö
GPIO_InitStructure.Speed = GPIO_SPEED_FAST; //IO¿ÚËÙ¶ÈÎª50MHz
HAL_GPIO_Init(GPIOD, &GPIO_InitStructure); //¸ù¾ÝÉè¶¨²ÎÊý³õÊ¼»¯GPIOD
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_7,GPIO_PIN_RESET);
GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
GPIO_InitStructure.Pin =GPIO_PIN_9;
GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
LDAC_HIGH;
FRE_HIGH;
delay_ms(100);
for(i = 0; i < 8; i++)
TLV56XX_WriteChannelValue(i, 0);
delay_ms(50);
}
volatile uint16_t Cmd;
void WriteChannelValue(uint8_t channel, uint16_t value)
{
int i;
uint16_t bit_state;
//TLV5610 12BIT
Cmd = (channel<<12)|((value)&0X0FFF);
// LDAC_HIGH;
FS_HIGH;
FS_LOW;
for(i = 0; i < 16; i++)
{
SCLK_HIGH;
bit_state = Cmd&0X8000;
if(bit_state)
DATA_HIGH;
else
DATA_LOW;
SCLK_LOW;
Cmd <<= 1;
}
FS_HIGH;
LDAC_LOW;
// LDAC_LOW;
LDAC_HIGH;
}
void TLV56XX_WriteChannelValue(uint8_t channel, uint16_t value)
{
WriteChannelValue(channel, value);
<div>}</div><div>
</div><div>
</div><div>///////<font style="background-color: rgb(255, 255, 255);">TLV56XX.H</font></div><div>#ifndef _TLV56XX_H_
#define _TLV56XX_H_</div><div>#include <stdint.h>
#include "sys.h"
</div><div>#define SCLK_HIGH HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_SET)// TLV_SCK = 1 SCK--PB13
#define DATA_HIGH HAL_GPIO_WritePin(GPIOB,GPIO_PIN_15,GPIO_PIN_SET) // TLV_DATA = 1 do--PB15
#define FS_HIGH HAL_GPIO_WritePin(GPIOB,GPIO_PIN_9,GPIO_PIN_SET)//TLV_FS = 1 PB9
#define LDAC_HIGH HAL_GPIO_WritePin(GPIOB,GPIO_PIN_14,GPIO_PIN_SET) //TLV_LDAC = 1 PB14
#define FRE_HIGH HAL_GPIO_WritePin(GPIOD,GPIO_PIN_7,GPIO_PIN_SET) // TLV_FRE = 1 PD7</div><div>#define SCLK_LOW HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_RESET) //TLV_SCK = 0
#define DATA_LOW HAL_GPIO_WritePin(GPIOB,GPIO_PIN_15,GPIO_PIN_RESET) // TLV_DATA = 0
#define FS_LOW HAL_GPIO_WritePin(GPIOB,GPIO_PIN_9,GPIO_PIN_RESET) //TLV_FS = 0
#define LDAC_LOW HAL_GPIO_WritePin(GPIOB,GPIO_PIN_14,GPIO_PIN_RESET) // TLV_LDAC = 0
#define FRE_LOW HAL_GPIO_WritePin(GPIOD,GPIO_PIN_7,GPIO_PIN_RESET) //TLV_FRE = 0</div><div>void DAC_Tlv56xx_Init(void);
void WriteChannelValue(uint8_t channel, uint16_t value);
void TLV56XX_WriteChannelValue(uint8_t channel, uint16_t value);</div><div>#endif</div><div>
</div><div>
////main.c</div><div>#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "key.h"
#include "lcd.h"
#include "sdram.h"
#include "adc.h"
#include "TLV56xx.H"
</div><div>int main(void)
{
// MY_NVIC_PriorityGroup_Config(NVIC_PriorityGroup_2);
u16 adcx;
float temp;
Cache_Enable();
HAL_Init();
Stm32_Clock_Init(432,25,2,9);
delay_init(216);
uart_init(115200);
LED_Init();
KEY_Init();
SDRAM_Init();
LCD_Init();
DAC_Tlv56xx_Init();
MY_ADC_Init();
POINT_COLOR=RED;
LCD_ShowString(30,50,200,16,16,"Apollo STM32F4/F7");
LCD_ShowString(30,70,200,16,16,"ADC TEST");
LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(30,110,200,16,16,"2016/7/12");
POINT_COLOR=BLUE;
LCD_ShowString(30,130,200,16,16,"ADC1_CH5_VAL:");
LCD_ShowString(30,150,200,16,16,"ADC1_CH5_VOL:0.000V");
TLV56XX_WriteChannelValue(0, 4095/8*1);
TLV56XX_WriteChannelValue(1, 4095/8*2);
TLV56XX_WriteChannelValue(2, 4095/8*3);
TLV56XX_WriteChannelValue(3, 4095/8*4);
TLV56XX_WriteChannelValue(4, 4095/8*5);
TLV56XX_WriteChannelValue(5, 4095/8*6);
TLV56XX_WriteChannelValue(6, 4095/8*7);
TLV56XX_WriteChannelValue(7, 4095/8*8);
while(1)
{
// DAC5618_translate_a(4095);
adcx=Get_Adc_Average(ADC_CHANNEL_5,20);
LCD_ShowxNum(134,130,adcx,4,16,0);
temp=(float)adcx*(3.3/4096);
adcx=temp;
LCD_ShowxNum(134,150,adcx,1,16,0);
temp-=adcx;
temp*=1000;
LCD_ShowxNum(150,150,temp,3,16,0X80);
LED0_Toggle;
delay_ms(250);
}
}
</div>

复制代码

543850124 · 发表于 2020-9-9 16:10:02

请问楼主成功了吗，我也遇到相同的问题

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求助，F767开发板SPI问题,附代码，请大神帮忙。想通过764的SPI接口控制一个外部的DAC芯片，按照芯片的F103例子进行了移植，可...

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