Stm32 ADC rule multi-channel Conversion

After reading this code, I finally understood what the rule multi-channel conversion is, and how it is implemented as a whole. Code:

/*************************************** ****************************************

* Function name: Main

* Description: Main Program

* Input: None

* Output: None

* Return: None

**************************************** ***************************************/

Int main (void)

{

# Ifdef debug

Debug ();

# Endif

/* System clocks configuration ---------------------------------------------*/

Rcc_configuration ();

/* Configure C ------------------------------------------------------*/

Nvic_configuration ();

/* Gpio configuration ------------------------------------------------------*/

Gpio_configuration ();

Lcdshow_init ();

/* Dma1 channel1 configuration ----------------------------------------------*/

Dma_deinit (dma1_channel1 );

Dma_initstructure.dma_peripheralbaseaddr = adc1_dr_address; // peripheral address

Dma_initstructure.dma_memorybaseaddr = (u32) adc_rcvtab; // memory address

Dma_initstructure.dma_dir = dma_dir_peripheralsrc; // One-way DMA Transmission Direction

Dma_initstructure.dma_buffersize = 160; // set the DMA buffer length during transmission. Word

Dma_initstructure.dma_peripheralinc = dma_peripheralinc_disable; // sets the auto-increment mode of the DMA peripherals.

Dma_initstructure.dma_memoryinc = dma_memoryinc_enable; // set the memory increment mode of DMA,

Dma_initstructure.dma_peripheraldatasize = dma_peripheraldatasize_halfword; // The length of the peripheral data.

Dma_initstructure.dma_memorydatasize = dma_memorydatasize_halfword; // Memory Data Length

Dma_initstructure.dma_mode = dma_mode_circular; // set the DMA transmission mode: continuous loop mode

Dma_initstructure.dma_priority = dma_priority_high; // sets the priority of DMA.

Dma_initstructure.dma_m2m = dma_m2m_disable; // set the variables in the two memory databases of DMA to access each other.

Dma_init (dma1_channel1, & dma_initstructure );



/* Enable dma1 channel1 */

Dma_cmd (dma1_channel1, enable );

/* Adc1 configuration ------------------------------------------------------*/

Adc_initstructure.adc_mode = adc_mode_independent; // standalone Mode

Adc_initstructure.adc_scanconvmode = Enable; // scan mode

Adc_initstructure.adc_continuousconvmode = Enable; // Continuous Conversion

Adc_initstructure.adc_externaltrigconv = adc_externaltrigconv_none; // disable External triggering

Adc_initstructure.adc_dataalign = adc_dataalign_right; // right-aligned data

Adc_initstructure.adc_nbrofchannel = 8; // number of channels used for conversion

Adc_init (adc1, & adc_initstructure );

/* Adc1 regular channels configuration [Rule mode channel configuration] */

Adc_regularchannelconfig (adc1, adc_channel_8, 1, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_9, 2, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_10, 3, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_11, 4, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_12, 5, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_13, 6, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_14, 7, adc_sampletime_239cycles5 );

Adc_regularchannelconfig (adc1, adc_channel_15, 8, adc_sampletime_239cycles5 );

/* Enable adc1 DMA [enable adc1 DMA] */

Adc_dmacmd (adc1, enable );



/* Enable adc1 [enable adc1] */

Adc_cmd (adc1, enable );

/* Enable adc1 reset calibaration register */

Adc_resetcalibration (adc1 );

/* Check the end of adc1 reset calibration register */

While (adc_getresetcalibrationstatus (adc1 ));

/* Start adc1 calibaration */

Adc_startcalibration (adc1 );

/* Check the end of adc1 calibration */

While (adc_getcalibrationstatus (adc1 ));



/* Start adc1 software conversion */

Adc_softwarestartconvcmd (adc1, enable );

}