2020電賽ads1292x模塊stm32代碼
main.c
為工程的主程序文件夾
stm32f10x_conf.h
參數(shù)設(shè)置文件,起到應(yīng)用和庫(kù)之間界面的作用
用戶使用前必須自己修改該文件
也可以修改外部晶振的參數(shù)
也可以是用該文件在編譯前使能Debug或者Release模式
由不同的define語(yǔ)句組成
stm32f10x_it.c
外設(shè)中斷函數(shù)文件
用戶可以加入自己的中斷程序代碼
對(duì)于指向同一個(gè)中斷向量的多個(gè)不同中斷請(qǐng)求,可以利用函數(shù)通過(guò)判斷外設(shè)的中斷標(biāo)志位來(lái)確定準(zhǔn)確的中斷源
庫(kù)函數(shù)提供了這些函數(shù)的名稱
stm3210x_it.h
該頭文件包含了所有中斷處理程序的原型。
單片機(jī)源程序如下:
- /*ADS1292R驅(qū)動(dòng)程序*/
- #include"ADS1292R.H"
- /**初始化ADS1292R**/
- void ADS_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
- SPI_InitTypeDef SPI_InitStructure;
- NVIC_InitTypeDef NVIC_InitStructure;
- EXTI_InitTypeDef EXTI_InitStructure;
- /*ADS1292用到的IO口初始化*/
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_PWDN;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;//推挽輸出
- GPIO_Init(ADS_PWDN_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_GPIO2;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;//復(fù)用推挽輸出
- GPIO_Init(ADS_GPIO2_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_DRDY;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空輸入
- GPIO_Init(ADS_DRDY_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_CS;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;//推挽輸出
- GPIO_Init(ADS_CS_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_SCLK;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;//復(fù)用推挽輸出
- GPIO_Init(ADS_SCLK_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_DOUT;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空輸入
- GPIO_Init(ADS_DOUT_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_DIN;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;//復(fù)用推挽輸出
- GPIO_Init(ADS_DIN_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_START;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;//推挽輸出
- GPIO_Init(ADS_START_G, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//最高輸出速率50MHz
- GPIO_InitStructure.GPIO_Pin = ADS_GPIO1;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;//復(fù)用推挽輸出
- GPIO_Init(ADS_GPIO1_G, &GPIO_InitStructure);
- /*SPI接口初始化*/
- SPI_Cmd(SPI1,DISABLE);
- SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //雙線雙向全雙工
- SPI_InitStructure.SPI_Mode = SPI_Mode_Master;//SPI主模式
- SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;//8bit數(shù)據(jù)
- SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;//CLK空閑時(shí)為高電平
- 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;//片選用軟件控制
- SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;//SPI頻率
- SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;//高位在前
- SPI_InitStructure.SPI_CRCPolynomial = 7;//crc7,stm32spi帶硬件ecc
- SPI_Init(SPI1, &SPI_InitStructure);
- SPI_Cmd(SPI1,ENABLE);
- /*DRDY中斷接收初始化
- NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn;//選擇中斷通道3
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;//搶占式中斷優(yōu)先級(jí)設(shè)置為1
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;//響應(yīng)式中斷優(yōu)先級(jí)設(shè)置為1
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//使能中斷
- NVIC_Init(&NVIC_InitStructure);
- EXTI_ClearITPendingBit(EXTI_Line3);//清除中斷標(biāo)志
- GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource3);//選擇管教
- EXTI_InitStructure.EXTI_Line = EXTI_Line3; //選擇中斷線路3
- EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; //設(shè)置為中斷請(qǐng)求,非事件請(qǐng)求
- EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; //Falling設(shè)置中斷觸發(fā)方式為下降沿觸發(fā)
- EXTI_InitStructure.EXTI_LineCmd = ENABLE;//外部中斷使能
- EXTI_Init(&EXTI_InitStructure);*/
- }
- /**ADS1292R上電復(fù)位 **/
- void ADS_PowerOnInit(void)
- { unsigned char sj[9];
- ADS_START_H;
- ADS_CS_H;
- ADS_PWDN_L;//進(jìn)入掉電模式
- delay_ms(1000);
- ADS_PWDN_H;//退出掉電模式
- delay_ms(1000);//等待穩(wěn)定
- ADS_PWDN_L;//發(fā)出復(fù)位脈沖
- delay_us(10);
- ADS_PWDN_H;
- delay_ms(1000);//等待穩(wěn)定,可以開(kāi)始使用ADS1292R
- ADS_START_L;
- ADS_CS_L;
- ADS_SPI(SDATAC);//發(fā)送停止連續(xù)讀取數(shù)據(jù)命令
- ADS_REG(WREG|CONFIG2,0XA0); //使用內(nèi)部參考電壓
- delay_ms(10);//等待內(nèi)部參考電壓穩(wěn)定
- ADS_REG(WREG|CONFIG1,0X02); //設(shè)置轉(zhuǎn)換速率為500SPS
- ADS_REG(WREG|CH1SET,0X01); //設(shè)置通道1為短路
- ADS_REG(WREG|CH2SET,0X01); //設(shè)置通道2為短路
- sj[1]=ADS_REG(RREG|CONFIG1,0X00);
- sj[2]=ADS_REG(RREG|CH1SET,0X00);
- sj[3]=ADS_REG(RREG|CH2SET,0X00);
- printf("%X ",sj[1]);
- printf("%X ",sj[2]);
- printf("%X \n",sj[3]);
- /* ADS_SPI(RDATAC);//回到連續(xù)讀取數(shù)據(jù)模式,檢測(cè)噪聲數(shù)據(jù)
- ADS_START_H;//啟動(dòng)轉(zhuǎn)換
- while(GPIO_ReadInputDataBit(ADS_DRDY_G,ADS_DRDY)==SET);
- ADS_Read(sj);
- ADS_START_L;
- ADS_SPI(SDATAC);
- ADS_REG(WREG|CONFIG2,0XA0);
- ADS_REG(WREG|CH1SET,0X80);
- ADS_REG(WREG|CH2SET,0X00);
- ADS_SPI(RDATAC);
- ADS_START_H; */
-
-
- }
- /**對(duì)ADS1292R內(nèi)部寄存器進(jìn)行操作 **/
- unsigned char ADS_REG(unsigned char com,unsigned data)
- {
- unsigned char i;
- for(i=0;i<45;i++);
- ADS_SPI(com);
- for(i=0;i<45;i++);
- ADS_SPI(0X00);
- for(i=0;i<45;i++);
- if((com&0x20)==0x20)//判斷是否為讀寄存器指令
- { ADS_SPI(0X00);
- for(i=0;i<45;i++);
- }
- return (ADS_SPI(data));
- }
- /**通過(guò)SPI總線與ADS1292R通信**/
- unsigned char ADS_SPI(unsigned char com)
- {
- while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);//檢測(cè)發(fā)送寄存器是否為空,上一個(gè)數(shù)據(jù)發(fā)送完成
- SPI_I2S_SendData(SPI1, com);//發(fā)送數(shù)據(jù)
- while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);//檢測(cè)接收標(biāo)志是否非空,發(fā)送完成
- return (SPI_I2S_ReceiveData(SPI1)); //返回接收到的數(shù)據(jù)
- }
- /*讀取72位的數(shù)據(jù)1100+LOFF_STAT[4:0]+GPIO[1:0]+13個(gè)0+2CHx24位,共9字節(jié)*/
- void ADS_Read(unsigned char *data)
- { unsigned char i;
- for(i=0;i<9;i++)
- { *data=ADS_SPI(0X00);
- data++;
- }
- }
復(fù)制代碼
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