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本帖最后由 benclee 于 2020-5-10 11:04 編輯
51hei截圖_20200510105151.png (84.86 KB, 下載次數(shù): 54)
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這上面三個(gè)紅叉號(hào)
2020-5-10 10:54 上傳
這上面三個(gè)紅色的叉號(hào),在編譯時(shí)也不報(bào)錯(cuò),鼠標(biāo)放在上面顯示error:no member named 'BSRRL' in 'GPIO_TypeDef'
51hei截圖_20200510105324.png (18 KB, 下載次數(shù): 52)
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2020-5-10 10:54 上傳
51hei截圖_20200510105300.png (13.75 KB, 下載次數(shù): 56)
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2020-5-10 10:54 上傳
這是移置stm32f103c8t6 ili9341 spi 屏到stm32f407vet6上面,什么都不顯示。屏也不亮。
不知哪里出問(wèn)題了。
這是SPI.C
用的是SPI2口
#include "spi.h"
#include "sys.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_spi.h"
#include "stm32f4xx_rcc.h"
#include "stm32f4xx.h"
//以下是SPI模塊的初始化代碼,配置成主機(jī)模式,訪問(wèn)SD Card/W25X16/24L01/JF24C
//SPI口初始化
//這里針是對(duì)SPI1的初始化
SPI_InitTypeDef SPI_InitStructure;
void SPI1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB1PeriphClockCmd( RCC_AHB1Periph_GPIOA, ENABLE );
RCC_APB1PeriphClockCmd( RCC_APB2Periph_SPI1, ENABLE );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; //復(fù)用推挽輸出
GPIO_InitStructure.GPIO_OType =GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA,GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //設(shè)置SPI單向或者雙向的數(shù)據(jù)模式:SPI設(shè)置為雙線雙向全雙工
SPI_InitStructure.SPI_Mode = SPI_Mode_Master; //設(shè)置SPI工作模式:設(shè)置為主SPI
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; //設(shè)置SPI的數(shù)據(jù)大小:SPI發(fā)送接收8位幀結(jié)構(gòu)
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; //選擇了串行時(shí)鐘的穩(wěn)態(tài):時(shí)鐘懸空高
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; //數(shù)據(jù)捕獲于第二個(gè)時(shí)鐘沿
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; //NSS信號(hào)由硬件(NSS管腳)還是軟件(使用SSI位)管理:內(nèi)部NSS信號(hào)有SSI位控制
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256; //定義波特率預(yù)分頻的值:波特率預(yù)分頻值為256
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //指定數(shù)據(jù)傳輸從MSB位還是LSB位開(kāi)始:數(shù)據(jù)傳輸從MSB位開(kāi)始
SPI_InitStructure.SPI_CRCPolynomial = 7; //CRC值計(jì)算的多項(xiàng)式
SPI_Init(SPI1, &SPI_InitStructure); //根據(jù)SPI_InitStruct中指定的參數(shù)初始化外設(shè)SPIx寄存器
SPI_Cmd(SPI1, ENABLE); //使能SPI外設(shè)
SPI1_ReadWriteByte(0xff);//啟動(dòng)傳輸
}
//SPI 速度設(shè)置函數(shù)
//SpeedSet:
//SPI_BaudRatePrescaler_2 2分頻 (SPI 36M@sys 72M)
//SPI_BaudRatePrescaler_8 8分頻 (SPI 9M@sys 72M)
//SPI_BaudRatePrescaler_16 16分頻 (SPI 4.5M@sys 72M)
//SPI_BaudRatePrescaler_256 256分頻 (SPI 281.25K@sys 72M)
void SPI1_SetSpeed(u8 SpeedSet)
{
SPI_InitStructure.SPI_BaudRatePrescaler = SpeedSet ;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1,ENABLE);
}
//SPIx 讀寫(xiě)一個(gè)字節(jié)
//TxData:要寫(xiě)入的字節(jié)
//返回值:讀取到的字節(jié)
u8 SPI1_ReadWriteByte(u8 TxData)
{
u8 retry=0;
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET) //檢查指定的SPI標(biāo)志位設(shè)置與否:發(fā)送緩存空標(biāo)志位
{
retry++;
if(retry>200)return 0;
}
SPI_I2S_SendData(SPI1, TxData); //通過(guò)外設(shè)SPIx發(fā)送一個(gè)數(shù)據(jù)
retry=0;
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET)//檢查指定的SPI標(biāo)志位設(shè)置與否:接受緩存非空標(biāo)志位
{
retry++;
if(retry>200)return 0;
}
return SPI_I2S_ReceiveData(SPI1); //返回通過(guò)SPIx最近接收的數(shù)據(jù)
}
/*****************************************************************************
* @name :u8 SPI_WriteByte(SPI_TypeDef* SPIx,u8 Byte)
* @date :2018-08-09
* @function :Write a byte of data using STM32's hardware SPI
* @parameters :SPIx: SPI type,x for 1,2,3
Byte:Data to be written
* @retvalue :Data received by the bus
******************************************************************************/
u8 SPI_WriteByte(SPI_TypeDef* SPIx,u8 Byte)
{
while((SPIx->SR&SPI_I2S_FLAG_TXE)==RESET); //等待發(fā)送區(qū)空
SPIx->DR=Byte; //發(fā)送一個(gè)byte
while((SPIx->SR&SPI_I2S_FLAG_RXNE)==RESET);//等待接收完一個(gè)byte
return SPIx->DR; //返回收到的數(shù)據(jù)
}
/*****************************************************************************
* @name :void SPI_SetSpeed(SPI_TypeDef* SPIx,u8 SpeedSet)
* @date :2018-08-09
* @function :Set hardware SPI Speed
* @parameters :SPIx: SPI type,x for 1,2,3
SpeedSet:0-high speed
1-low speed
* @retvalue :None
******************************************************************************/
void SPI_SetSpeed(SPI_TypeDef* SPIx,u8 SpeedSet)
{
SPIx->CR1&=0XFFC7;
if(SpeedSet==1)//高速
{
SPIx->CR1|=SPI_BaudRatePrescaler_2;//Fsck=Fpclk/2
}
else//低速
{
SPIx->CR1|=SPI_BaudRatePrescaler_32; //Fsck=Fpclk/32
}
SPIx->CR1|=1<<6; //SPI設(shè)備使能
}
/*****************************************************************************
* @name :void SPI2_Init(void)
* @date :2018-08-09
* @function :Initialize the STM32 hardware SPI2
* @parameters :None
* @retvalue :None
******************************************************************************/
void SPI2_Init(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
//配置SPI2管腳
RCC_APB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//輸出模式
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽模式
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd =GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
//SPI2配置選項(xiàng)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2 ,ENABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI2, &SPI_InitStructure);
//使能SPI2
SPI_Cmd(SPI2, ENABLE);
}
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