RT1052 (7) 驱动SPI-DAC

xutong 发表于 2023-1-10 12:13

<div class='showpostmsg'><h1>RT1052 (7) 驱动SPI-DAC</h1>

       首先在Bsp文件夹新建DAC目录，如下所示，因为是基于第4篇的工程文件，所以直接从第4篇下载工程文件即可。

  

图1：BSP文件夹

  

图2：放入DAC驱动

Dac .c文件

<table style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td style="border-bottom:1px solid black; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top">
#include "AD5668.h"

/*

    Channel Selection Range 1~16

    Value Range 0~65535

*/

void DAC_Write(uint8_t channel,uint16_t Value)

{

    uint16_t Date,temp;

    if(channel<=8)

    {

        DAC_CS1_L;

        /* Select Channel */

        Date=WriteAndUpDateCh;

        Date<<=4;

        Date|=channel-1;

        Date<<=4;

        temp=Value>>12;

        Date|=temp;

        Soft_SPI_Write(Date);

        Date=Value<<4;

        Soft_SPI_Write(Date);

        DAC_CS1_H;

    }

    else

    {

        DAC_CS2_L;

        /* Select Channel */

        Date=WriteAndUpDateCh;

        Date<<=4;

        Date|=channel-9;

        Date<<=4;

        temp=Value>>12;

        Date|=temp;

        Soft_SPI_Write(Date);

        Date=Value<<4;

        Soft_SPI_Write(Date);

        DAC_CS2_H;

    }

}

/*

    Initial DAC GPIO

*/

void DAC_Init(void)

{

    GPIO_InitTypeDef GPIO_InitStruct;

    __HAL_RCC_GPIOC_CLK_ENABLE();

    GPIO_InitStruct.Pin = DAC_CLR_PIN;

    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

    GPIO_InitStruct.Pull = GPIO_PULLDOWN;

    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

    HAL_GPIO_Init(DAC_CLR_PORT,&GPIO_InitStruct);

    DAC_CLR_L;

    /* OPEN INTERANL REFERENCE */

    DAC_CS1_L;

    Soft_SPI_Write(0x08f0);

    Soft_SPI_Write(0x0001);

    DAC_CS1_H;

    DAC_CS2_L;

    Soft_SPI_Write(0x08f0);

    Soft_SPI_Write(0x0001);

    DAC_CS2_H;

}

 

 
</td>
</tr>
</tbody>
</table>

Dac.h文件

<table style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td style="border-bottom:1px solid black; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top">
#ifndef __AD5668_H

#define __AD5668_H

#include "main.h"

#include "STM32_SPI.h"

/*

    AD5668 COMMAND AND ADDRESS

    MSB

    31 30 29 28  27 26 25 24

    X   X  X  X  C3 C2 C1 C0

    23 22 21 20  19         ->      5

    A3 A2 A1 A0  Data Msb-> DataLSB

    4 3 2 1

    X X X X

*/

/*

    COMMAND

*/

#define  UpdateDacReg               0X01

#define  WriteAndUpDateCh       0x03    

#define  ResetDac                       0x07

#define  SetUpRef                       0x80

/*

    ADDRESS  

*/

#define  ChannelA                       0X00

#define  ChannelB                       0X01

#define  ChannelC                       0X02

#define  ChannelD                       0X03

#define  ChannelE                       0X04

#define  ChannelF                       0X05

#define  ChannelG                       0X06

#define  ChannelH                       0X07

#define  ChannelAll                 0X0F

/*

    Ctrl GPIO redefine

*/

#define  DAC_CS1_L          SF_NSS1_L

#define  DAC_CS1_H          SF_NSS1_H

#define  DAC_CS2_L          SF_NSS2_L

#define  DAC_CS2_H          SF_NSS2_H

#define  DAC_CLR_PORT       GPIOC

#define  DAC_CLR_PIN        GPIO_PIN_13

#define  DAC_CLR_H          HAL_GPIO_WritePin(DAC_CLR_PORT,DAC_CLR_PIN,GPIO_PIN_SET)

#define  DAC_CLR_L          HAL_GPIO_WritePin(DAC_CLR_PORT,DAC_CLR_PIN,GPIO_PIN_RESET)

/*

    Channel Selection Range 1~8

    Value Range 0~65535

*/

void DAC_Init(void);

void DAC_Write(uint8_t channel,uint16_t Value);

#endif

 

 
</td>
</tr>
</tbody>
</table>

       因为是拷贝之前STM32的驱动，所以还要进行一些修改，先不管。

  

图3：在User里面添加驱动

  

图4：添加头文件路径1

  

图5：添加头文件路径2

因为是修改STM32的驱动，其本质没有啥差别，从<a href="https://bbs.eeworld.com.cn/thread-1225595-1-1.html" style="color:blue; text-decoration:underline" target="_blank">RT1052（2）工具生成代码</a> 那个章节直接copy代码过来就行。

Bsp_lpspi.c文件

<table style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td style="border-bottom:1px solid black; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top">
#include "fsl_iomuxc.h"

#include "fsl_gpio.h"

#include "fsl_lpspi.h"

#include "pad_config.h"

#include "bsp_lpspi.h"

 

 

static void LPSPI_GPIO_Init(void);

 

static void LPSPI_GPIO_Init(void)

{

     IOMUXC_SetPinMux(

      IOMUXC_GPIO_AD_B0_00_LPSPI3_SCK,        /* GPIO_AD_B0_00 is configured as LPSPI3_SCK */

      0U);                                    /* Software Input On Field: Input Path is determined by functionality */

  IOMUXC_SetPinMux(

      IOMUXC_GPIO_AD_B0_01_LPSPI3_SDO,        /* GPIO_AD_B0_01 is configured as LPSPI3_SDO */

      0U);                                    /* Software Input On Field: Input Path is determined by functionality */

  IOMUXC_SetPinMux(

      IOMUXC_GPIO_AD_B0_02_LPSPI3_SDI,        /* GPIO_AD_B0_02 is configured as LPSPI3_SDI */

      0U);                                    /* Software Input On Field: Input Path is determined by functionality */

  IOMUXC_SetPinMux(

      IOMUXC_GPIO_AD_B0_03_LPSPI3_PCS0,       /* GPIO_AD_B0_03 is configured as LPSPI3_PCS0 */

      0U);

}

void LPSPI_Init(void)

{

    //config Lpspi clock

    CLOCK_SetMux(kCLOCK_LpspiMux, 3);

    CLOCK_SetDiv(kCLOCK_LpspiDiv, 7U);

    //initial Gpio config

    LPSPI_GPIO_Init();

    //initial lpspi config

    lpspi_master_config_t config;

 

    LPSPI_MasterGetDefaultConfig(&config);

    //config lpspi cs pin

    config.whichPcs=kLPSPI_Pcs0;

 

    LPSPI_MasterInit(LPSPI3, &config, LPSPI3_CLOCK_FREQ);

}

void Lpspi_Write(uint8_t datasize,uint8_t *data)

{

    lpspi_transfer_t spi_tranxfer;

    spi_tranxfer.configFlags=kLPSPI_MasterPcs0|kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;

    spi_tranxfer.txData=data; //要发送的数据

    spi_tranxfer.rxData=NULL;

    spi_tranxfer.dataSize=datasize; //数据长度

    LPSPI_MasterTransferBlocking(LPSPI3, &spi_tranxfer);

}
</td>
</tr>
</tbody>
</table>

Bsp_lpspi.h文件

<table style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td style="border-bottom:1px solid black; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top">
#ifndef __BSP_LPSPI_H

#define __BSP_LPSPI_H

 

#include "fsl_common.h"

 

 

 

#define LPSPI3_CLOCK_FREQ 6000000UL

 

 

void LPSPI_Init(void);

void DAC_Write(uint8_t channel,uint16_t Value);

 

#endif /* __BSP_LPSPI_H */

 
</td>
</tr>
</tbody>
</table>

Github 地址：

https://github.com/xutong-analog/fantasy/tree/main/RT1052/lpspi

测试下驱动波形

  

图6：lpspi驱动波形

再给AD5668套层壳

AD5668.C

<table style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td style="border-bottom:1px solid black; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top">
#include "AD5668.h"

#include "board.h"

/*

       Channel Selection Range 1~16

       Value Range 0~65535

*/

void DAC_Write(uint8_t channel,uint16_t Value)

{

      

        uint8_t data;

        data=WriteAndUpDateCh;

        data=(Value>>12)|channel;

        data=(Value>>4)&0x00ff;

        data=(Value&0x000f)<<4;

       

        Lpspi_Write(4,data);

 

}

/*

       Initial DAC GPIO

*/

void DAC_Init(void)

{

 

       //DAC_CLR_L;

       /* OPEN INTERANL REFERENCE */

        uint8_t data={0x08,0xf0,0x00,0x01};

        Lpspi_Write(4,data);

 

}

 
</td>
</tr>
</tbody>
</table>

AD5668.H

<table style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td style="border-bottom:1px solid black; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top">
#ifndef __AD5668_H

#define __AD5668_H

#include "bsp_lpspi.h"

/*

       AD5668 COMMAND AND ADDRESS

       MSB

       31 30 29 28  27 26 25 24

       X   X  X  X  C3 C2 C1 C0

       23 22 21 20  19         ->         5

       A3 A2 A1 A0  Data Msb-> DataLSB

       4 3 2 1

       X X X X

*/

/*

       COMMAND

*/

#define  UpdateDacReg                          0X01

#define  WriteAndUpDateCh                   0x03      

#define   ResetDac                           0x07

#define   SetUpRef                           0x80

/*

       ADDRESS 

*/

#define  ChannelA                                        0X00

#define  ChannelB                                         0X10

#define  ChannelC                                        0X20

#define  ChannelD                                        0X30

#define  ChannelE                                         0X40

#define  ChannelF                                         0X50

#define  ChannelG                                        0X60

#define  ChannelH                                        0X70

#define  ChannelAll                                0XF0

/*

       Ctrl GPIO redefine

*/

#define  DAC_CS1_L                 SF_NSS1_L

#define  DAC_CS1_H                SF_NSS1_H

 

#define  DAC_CLR_PIN                     GPIO_PIN_13

#define   DAC_CLR_H               HAL_GPIO_WritePin(DAC_CLR_PORT,DAC_CLR_PIN,GPIO_PIN_SET)

#define   DAC_CLR_L                HAL_GPIO_WritePin(DAC_CLR_PORT,DAC_CLR_PIN,GPIO_PIN_RESET)

 

 

 

 

/*

       Channel Selection Range 1~8

       Value Range 0~65535

*/

void DAC_Init(void);

void DAC_Write(uint8_t channel,uint16_t Value);

 

#endif
</td>
</tr>
</tbody>
</table>

掏出开发板

  

图7：DAC开发板

  

图8：DAC输出结果

  

图9：测试环境

<h2 >参考文档：</h2>

Eeworld <a href="https://bbs.eeworld.com.cn/thread-1230425-1-1.html" style="color:blue; text-decoration:underline" target="_blank">10*10的洞洞板</a>—xutong

Eeworld <a href="https://bbs.eeworld.com.cn/thread-1225595-1-1.html" style="color:blue; text-decoration:underline" target="_blank">RT1052（2）工具生成代码</a> —xutong

Adi ad5668 datasheet

 
</div><script> var loginstr = '<div class="locked">查看本帖全部内容，请<a href="javascript:;" style="color:#e60000" class="loginf">登录</a>或者<a href="https://bbs.eeworld.com.cn/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">注册</a></div>';

if(parseInt(discuz_uid)==0){
(function($){
var postHeight = getTextHeight(400);
$(".showpostmsg").html($(".showpostmsg").html());
$(".showpostmsg").after(loginstr);
$(".showpostmsg").css({height:postHeight,overflow:"hidden"});
})(jQuery);
} </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script"),eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>

xutong 发表于 2023-1-10 12:16

xutong 发表于 2023-1-10 14:22

https://github.com/xutong-analog/fantasy/tree/main/RT1052

github地址

xutong 发表于 2023-2-3 14:32

更新驱动代码：

<pre>
<code class="language-cpp">#include "AD5668.h"
#include "board.h"
#include "bsp_lpspi.h"
/*
Channel Selection Range 1~16
Value Range 0~65535
*/
void DAC_Write(uint8_t channel,uint16_t Value)
{
uint8_t data;
//command modify
data=WriteToReg;
//WriteAndUpDateCh
// command modify
data=(Value>>12)|channel;
data=(Value>>4)&0x00ff;
data=(Value&0x000f)<<4;

Lpspi_Write(4,data);

}
void DAC_Command_Write(uint8_t Command,uint8_t channel,uint16_t Value)
{
uint8_t data;
//command modify
data=Command;
//WriteAndUpDateCh
// command modify
data=(Value>>12)|channel;
data=(Value>>4)&0x00ff;
data=(Value&0x000f)<<4;

Lpspi_Write(4,data);

}
/*
Initial DAC GPIO
*/
void DAC_Init(void)
{

//DAC_CLR_L;
/* OPEN INTERANL REFERENCE */
uint8_t data={0x08,0xf0,0x00,0x01};
Lpspi_Write(4,data);

}
void DAC_Reset(void)
{
// no significance data
uint8_t data={0x00,0xf0,0x00,0x01};
//command modify
data=ResetDac;
Lpspi_Write(4,data);

}
void SoftLdac(void)
{

uint8_t data={0x06,0x00,0x00,0xFF};
Lpspi_Write(4,data);

}</code></pre>

 

<pre>
<code class="language-cpp">#ifndef __AD5668_H
#define __AD5668_H
#include "bsp_lpspi.h"
/*
AD5668 COMMAND AND ADDRESS
MSB
31 30 29 2827 26 25 24
X XXXC3 C2 C1 C0
23 22 21 2019 -> 5
A3 A2 A1 A0Data Msb-> DataLSB
4 3 2 1
X X X X
*/
/*
COMMAND
*/
#defineWriteToReg 0X00
#defineUpdateDacReg 0X01
#defineWriteAndUpDateAll 0X02
#defineWriteAndUpDateCh 0x03
#definePowerDownAndPowerUpDac 0x04
#defineloadClearReg 0x05
#defineloadLdacReg 0x06
#define ResetDac 0x07
#define SetUpRef 0x80
/*
ADDRESS
*/
#defineChannelA 0X00
#defineChannelB 0X10
#defineChannelC 0X20
#defineChannelD 0X30
#defineChannelE 0X40
#defineChannelF 0X50
#defineChannelG 0X60
#defineChannelH 0X70
#defineChannelAll 0XF0
/*
Ctrl GPIO redefine
*/
#defineDAC_CS1_L SF_NSS1_L
#defineDAC_CS1_H SF_NSS1_H

#defineDAC_CLR_PIN GPIO_PIN_13
#define DAC_CLR_H HAL_GPIO_WritePin(DAC_CLR_PORT,DAC_CLR_PIN,GPIO_PIN_SET)
#define DAC_CLR_L HAL_GPIO_WritePin(DAC_CLR_PORT,DAC_CLR_PIN,GPIO_PIN_RESET)

/*
Channel Selection Range 1~8
Value Range 0~65535
*/
void DAC_Init(void);
void DAC_Write(uint8_t channel,uint16_t Value);
void DAC_Command_Write(uint8_t Command,uint8_t channel,uint16_t Value);
void DAC_Reset(void);
void SoftLdac(void);
#endif
</code></pre>

xutong 发表于 2023-2-11 15:18

再次更新驱动代码：

<pre>
<code>#include "fsl_iomuxc.h"
#include "fsl_gpio.h"
#include "fsl_lpspi.h"
#include "pad_config.h"
#include "bsp_lpspi.h"

static void LPSPI_GPIO_Init(void);

static void LPSPI_GPIO_Init(void)
{
IOMUXC_SetPinMux(
 IOMUXC_GPIO_AD_B0_00_LPSPI3_SCK, /* GPIO_AD_B0_00 is configured as LPSPI3_SCK */
 0U); /* Software Input On Field: Input Path is determined by functionality */
IOMUXC_SetPinMux(
 IOMUXC_GPIO_AD_B0_01_LPSPI3_SDO, /* GPIO_AD_B0_01 is configured as LPSPI3_SDO */
 0U); /* Software Input On Field: Input Path is determined by functionality */
IOMUXC_SetPinMux(
 IOMUXC_GPIO_AD_B0_02_LPSPI3_SDI, /* GPIO_AD_B0_02 is configured as LPSPI3_SDI */
 0U); /* Software Input On Field: Input Path is determined by functionality */
IOMUXC_SetPinMux(
 IOMUXC_GPIO_AD_B0_03_LPSPI3_PCS0, /* GPIO_AD_B0_03 is configured as LPSPI3_PCS0 */
 0U);
}
void LPSPI_Init(void)
{
//config Lpspi clock
CLOCK_SetMux(kCLOCK_LpspiMux, 3);
CLOCK_SetDiv(kCLOCK_LpspiDiv, 7U);
//initial Gpio config
LPSPI_GPIO_Init();
//initial lpspi config
lpspi_master_config_t config;

LPSPI_MasterGetDefaultConfig(&config);
//config lpspi cs pin
config.whichPcs=kLPSPI_Pcs0;
// config.cpol=kLPSPI_ClockPolarityActiveLow;
// 使用ADX112 直接使用此配置
config.cpha=kLPSPI_ClockPhaseSecondEdge;
LPSPI_MasterInit(LPSPI3, &config, LPSPI3_CLOCK_FREQ);
}
//写数据
void Lpspi_Write(uint8_t datasize,uint8_t *data)
{
lpspi_transfer_t spi_tranxfer;
spi_tranxfer.configFlags=kLPSPI_MasterPcs0|kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;
spi_tranxfer.txData=data; //要发送的数据
spi_tranxfer.rxData=NULL;
spi_tranxfer.dataSize=datasize; //数据长度
LPSPI_MasterTransferBlocking(LPSPI3, &spi_tranxfer);
}
//读写数据
void Lpspi_Read(uint8_t datasize,uint8_t *data,uint8_t *Rxdata)
{
lpspi_transfer_t spi_tranxfer;
spi_tranxfer.configFlags=kLPSPI_MasterPcs0|kLPSPI_MasterPcsContinuous | kLPSPI_MasterByteSwap;
spi_tranxfer.txData=data; //要发送的数据
spi_tranxfer.rxData=Rxdata; //要接收的数据
spi_tranxfer.dataSize=datasize; //数据长度
LPSPI_MasterTransferBlocking(LPSPI3, &spi_tranxfer);

}

</code></pre>

<pre>
<code>#ifndef __BSP_LPSPI_H
#define __BSP_LPSPI_H

#include "fsl_common.h"

#define LPSPI3_CLOCK_FREQ 6000000UL

void LPSPI_Init(void);
//xue
void Lpspi_Write(uint8_t datasize,uint8_t *data);
void Lpspi_Read(uint8_t datasize,uint8_t *data,uint8_t *Rxdata);

#endif /* __BSP_LPSPI_H */

</code></pre>

可以直接驱动ADX112

<pre>
<code>/**
******************************************************************************
* @File main.c
* @author fire
* @version V1.0
* @date 2018-xx-xx
* @brief GPIO输入—按键中断检测
******************************************************************************
* @attention *
* 实验平台:野火i.MXRT1052开发板
* 论坛 :http://www.firebbs.cn
* 淘宝 :http://firestm32.taobao.com
*
******************************************************************************
*/
#include "board.h"
#include "fsl_debug_console.h"
#include "fsl_gpio.h"
#include "fsl_gpt.h"
#include "fsl_lpspi.h"
#include "fsl_iomuxc.h"
#include "pad_config.h"
#include "pin_mux.h"
#include "clock_config.h"
#include "fsl_lpi2c.h"
#include "./bsp/nvic/bsp_nvic.h"
#include "./bsp/led/bsp_led.h"
#include "./bsp/key/bsp_key_it.h"
#include "ad5668.h"
#include "fsl_adc.h"

#include "rtthread.h"
#include "bsp_lpspi.h"
#include "bsp_lpi2c.h"
#include "AnalogysemiCSD.h"
// 添加adc的返回值用于打印
volatile uint16_t ADC_Value;

uint8_t datas[]={0x04,0x9A,0x04,0X9A};
uint8_t Rdatas;

/*******************************************************************kkokkkkkkkkkkk
* Prototypes
*******************************************************************/
/**
* @brief 延时一段时间
*/

void delay(uint32_t count);

/*******************************************************************
* Code
*******************************************************************/
/**
* @note 本函数在不同的优化模式下延时时间不同，
* 如flexspi_nor_debug和flexspi_nor_release版本的程序中，
* flexspi_nor_release版本的延时要短得多
*/
void delay(uint32_t count)
{
volatile uint32_t i = 0;
for (i = 0; i < count; ++i)
{
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
}
}
// 步骤2：新建ADC初始化函数
void RT1052_ADC_Init(void)
{
adc_config_t adcConfigStruct;
adc_channel_config_t adcChannelConfigStruct;
 /*
*config->enableAsynchronousClockOutput = true;
*config->enableOverWrite = false;
*config->enableContinuousConversion = false;
*config->enableHighSpeed = false;
*config->enableLowPower = false;
*config->enableLongSample = false;
*config->referenceVoltageSource = kADC_ReferenceVoltageSourceVref;
*config->samplePeriodMode = kADC_SamplePeriod2or12Clocks;
*config->clockSource = kADC_ClockSourceAD;
*config->clockDriver = kADC_ClockDriver1;
*config->resolution = kADC_Resolution12Bit;
*/
ADC_GetDefaultConfig(&adcConfigStruct);
//最大resolution 12bit 只有外部参考
//adcConfigStruct.referenceVoltageSource=kADC_ReferenceVoltageSourceAlt0;
//开启连续转换模式
adcConfigStruct.enableContinuousConversion=true;
ADC_Init(ADC1, &adcConfigStruct);
//开启ADC中断
EnableIRQ(ADC1_IRQn);
//开启ADC1 自动校准
ADC_DoAutoCalibration(ADC1);
//关闭硬件触发
ADC_EnableHardwareTrigger(ADC1, false);
//读取通道0
adcChannelConfigStruct.channelNumber = 0;

adcChannelConfigStruct.enableInterruptOnConversionCompleted = true;
// Channe_group0 用于软件或者硬件出发
ADC_SetChannelConfig(ADC1, 0u /*ADC_CHANNEL_GROUP*/, &adcChannelConfigStruct);

}
// ADC 中断入口函数
voidADC1_IRQHandler(void)
{
ADC_Value= ADC_GetChannelConversionValue(ADC1, 0U);
rt_kprintf("ADC_Value :%d\r\n",ADC_Value);

}

/**
* @brief主函数
* @param无
* @retval 无
*/

int main(void)
{
// uint16_t BusVoltage;
rt_kprintf("hello analogysemi \r\n");
User_GPIO_Init();
LPSPI_Init();

Lpspi_Read(4,datas,Rdatas);
while(1)
{

 Lpspi_Read(4,datas,Rdatas);
 rt_thread_mdelay(10);
 Lpspi_Read(4,datas,Rdatas);
 rt_thread_mdelay(10);

}

}

/*********************************************END OF FILE**********************/

</code></pre>

ADX112 测温结果输出

xutong 发表于 2023-4-19 16:35

<pre>
<code class="language-cpp">/**
******************************************************************************
* @File main.c
* @author fire
* @version V1.0
* @date 2018-xx-xx
* @brief GPIO输入—按键中断检测
******************************************************************************
* @attention *
* 实验平台:野火i.MXRT1052开发板
* 论坛 :http://www.firebbs.cn
* 淘宝 :http://firestm32.taobao.com
*
******************************************************************************
*/
#include "board.h"
#include "fsl_debug_console.h"
#include "fsl_gpio.h"
#include "fsl_gpt.h"
#include "fsl_lpspi.h"
#include "fsl_iomuxc.h"
#include "pad_config.h"
#include "pin_mux.h"
#include "clock_config.h"
#include "fsl_lpi2c.h"
#include "./bsp/nvic/bsp_nvic.h"
#include "./bsp/led/bsp_led.h"
#include "./bsp/key/bsp_key_it.h"
#include "ad5668.h"
#include "fsl_adc.h"

#include "rtthread.h"
#include "bsp_lpspi.h"
// 添加adc的返回值用于打印
volatile uint16_t ADC_Value;

/*******************************************************************kkokkkkkkkkkkk
* Prototypes
*******************************************************************/
/**
* @brief 延时一段时间
*/

void delay(uint32_t count);

/*******************************************************************
* Code
*******************************************************************/
/**
* @note 本函数在不同的优化模式下延时时间不同，
* 如flexspi_nor_debug和flexspi_nor_release版本的程序中，
* flexspi_nor_release版本的延时要短得多
*/
void delay(uint32_t count)
{
volatile uint32_t i = 0;
for (i = 0; i < count; ++i)
{
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
}
}
// 步骤2：新建ADC初始化函数
void RT1052_ADC_Init(void)
{
adc_config_t adcConfigStruct;
adc_channel_config_t adcChannelConfigStruct;
 /*
*config->enableAsynchronousClockOutput = true;
*config->enableOverWrite = false;
*config->enableContinuousConversion = false;
*config->enableHighSpeed = false;
*config->enableLowPower = false;
*config->enableLongSample = false;
*config->referenceVoltageSource = kADC_ReferenceVoltageSourceVref;
*config->samplePeriodMode = kADC_SamplePeriod2or12Clocks;
*config->clockSource = kADC_ClockSourceAD;
*config->clockDriver = kADC_ClockDriver1;
*config->resolution = kADC_Resolution12Bit;
*/
ADC_GetDefaultConfig(&adcConfigStruct);
//最大resolution 12bit 只有外部参考
//adcConfigStruct.referenceVoltageSource=kADC_ReferenceVoltageSourceAlt0;
//开启连续转换模式
adcConfigStruct.enableContinuousConversion=true;
ADC_Init(ADC1, &adcConfigStruct);
//开启ADC中断
EnableIRQ(ADC1_IRQn);
//开启ADC1 自动校准
ADC_DoAutoCalibration(ADC1);
//关闭硬件触发
ADC_EnableHardwareTrigger(ADC1, false);
//读取通道0
adcChannelConfigStruct.channelNumber = 0;

adcChannelConfigStruct.enableInterruptOnConversionCompleted = true;
// Channe_group0 用于软件或者硬件出发
ADC_SetChannelConfig(ADC1, 0u /*ADC_CHANNEL_GROUP*/, &adcChannelConfigStruct);

}
// ADC 中断入口函数
voidADC1_IRQHandler(void)
{
ADC_Value= ADC_GetChannelConversionValue(ADC1, 0U);
rt_kprintf("ADC_Value :%d\r\n",ADC_Value);

}

/**
* @brief主函数
* @param无
* @retval 无
*/

int main(void)
{

rt_kprintf("hello analogysemi \r\n");
User_GPIO_Init();
LPSPI_Init();
// RT1052_ADC_Init();
// //读取通道0
// adc_channel_config_t adcChannelConfigStruct;
// adcChannelConfigStruct.channelNumber = 0;
// adcChannelConfigStruct.enableInterruptOnConversionCompleted = true;
DAC_Init();
rt_thread_mdelay(1);
while(1)
{
// RGB_RED_LED_ON;
//

DAC_Write(ChannelA,0x55aa);
 rt_thread_mdelay(10);
DAC_Write(ChannelA,0xaa55);

rt_thread_mdelay(10);

// ADC_SetChannelConfig(ADC1, 0u /*ADC_CHANNEL_GROUP*/, &adcChannelConfigStruct);
// rt_thread_mdelay(500);
}

}

/*********************************************END OF FILE**********************/

</code></pre>

主程序

freebsder 发表于 2023-4-21 23:19

这个波形看起来不太干净呢？

xutong 发表于 2023-4-22 09:33

freebsder 发表于 2023-4-21 23:19
这个波形看起来不太干净呢？

线飞来飞去，接地没夹好

freebsder 发表于 2023-4-24 09:24

xutong 发表于 2023-4-22 09:33
线飞来飞去，接地没夹好

哈哈，好吧

xutong 发表于 2023-4-24 11:05

freebsder 发表于 2023-4-24 09:24
哈哈，好吧

<img height="48" src="https://bbs.eeworld.com.cn/static/editor/plugins/hkemoji/sticker/facebook/congra.gif" width="48" />快速验下，快速搞下个东西

xutong 发表于 2023-10-19 14:52

<pre>
<code class="language-cpp">/*
analogysemi
xutong 2023/10/19
*/
#ifndef __BSP_LPSPI_H
#define __BSP_LPSPI_H

#include "stm32h7xx_hal.h"

#define SPIx SPI1
#define SPIx_CLK_ENABLE() __HAL_RCC_SPI1_CLK_ENABLE()
#define SPIx_SCK_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define SPIx_MISO_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define SPIx_MOSI_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()

#define SPIx_CS_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
/* Definition for SPIx Pins */
#define SPIx_SCK_PIN GPIO_PIN_3
#define SPIx_SCK_GPIO_PORT GPIOB
#define SPIx_SCK_AF GPIO_AF5_SPI1
#define SPIx_MISO_PIN GPIO_PIN_4
#define SPIx_MISO_GPIO_PORT GPIOB
#define SPIx_MISO_AF GPIO_AF5_SPI1
#define SPIx_MOSI_PIN GPIO_PIN_5
#define SPIx_MOSI_GPIO_PORT GPIOB
#define SPIx_MOSI_AF GPIO_AF5_SPI1

#define SPIx_CS_PIN GPIO_PIN_6
#define SPIx_CS_GPIO_PORT GPIOB

void LPSPI_Init(void);

void Lpspi_Write(uint8_t datasize,uint8_t *data);
void Lpspi_Read(uint8_t datasize,uint8_t *data,uint8_t *Rxdata);

#endif /* __BSP_LPSPI_H */</code></pre>

<pre>
<code class="language-cpp">#include "bsp_lpspi.h"
SPI_HandleTypeDef SpiHandle;

void Spi_delay(uint32_t count)
{
volatile uint32_t i = 0;
for (i = 0; i < count; ++i)
{
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
 __asm("NOP"); /* 调用nop空指令 */
}
}
void LPSPI_Init(void)
{

GPIO_InitTypeDefGPIO_InitStruct;
/* Enable SPI1 clock */
SPIx_CLK_ENABLE();
SPIx_SCK_GPIO_CLK_ENABLE();
SPIx_MISO_GPIO_CLK_ENABLE();
SPIx_MOSI_GPIO_CLK_ENABLE();
SPIx_CS_GPIO_CLK_ENABLE();

/* 初始化GPIO 配置*/
/*##-1- Configure peripheral GPIO ##########################################*/
/* SPI SCK GPIO pin configuration*/
GPIO_InitStruct.Pin = SPIx_SCK_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = SPIx_SCK_AF;
HAL_GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);

/* SPI MISO GPIO pin configuration*/
GPIO_InitStruct.Pin = SPIx_MISO_PIN;
GPIO_InitStruct.Alternate = SPIx_MISO_AF;
HAL_GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStruct);

/* SPI MOSI GPIO pin configuration*/
GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
GPIO_InitStruct.Alternate = SPIx_MOSI_AF;
HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStruct);

/* SPI CS GPIO pin configuration*/
GPIO_InitStruct.Pin = SPIx_CS_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(SPIx_CS_GPIO_PORT, &GPIO_InitStruct);

 /* 初始化SPI 配置*/
/*##-2- Configure the SPI peripheral #######################################*/
/* Set the SPI parameters */
SpiHandle.Instance = SPIx;
SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
SpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
SpiHandle.Init.CLKPhase = SPI_PHASE_1EDGE;
SpiHandle.Init.CLKPolarity = SPI_POLARITY_HIGH;
SpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
SpiHandle.Init.TIMode = SPI_TIMODE_DISABLE;
SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
SpiHandle.Init.CRCPolynomial = 7;
SpiHandle.Init.NSS = SPI_NSS_SOFT;
SpiHandle.Init.Mode = SPI_MODE_MASTER;
//初始化SPI
HAL_SPI_Init(&SpiHandle);
//默认拉高CS引脚
HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_SET);

}
void Lpspi_Write(uint8_t datasize,uint8_t *data)
{

//写数据
HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_RESET);
HAL_SPI_Transmit(&SpiHandle,data, datasize, 5000);
Spi_delay(30);
HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_SET);
}
void Lpspi_Read(uint8_t datasize,uint8_t *data,uint8_t *Rxdata)
{
//读写数据
HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_RESET);
HAL_SPI_TransmitReceive(&SpiHandle,data,Rxdata, datasize, 5000);
Spi_delay(30);
HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_SET);
}
</code></pre>

 

转换为STM32能用的头文件

页: [1]

电子工程世界-论坛's Archiver

RT1052 (7) 驱动SPI-DAC