LP-MSPM0G3507: Data corruption when using five ADC channels + single DMA Channel

Hi,

What kind of result do you want? 

 or 

Best regards,

Cash Hao

Hello , 

Thank you for replay .

I want the ADC1 in following manner, as I did not get the  proper idea from Image , so I also texting the same,

I am using ADC1 with its 5 different channel  and all channel are using different memory address (In that i am not using an ADC Interrupts) so directly reading the RAW data from following function 

Mosfet_Temp = DL_ADC12_getMemResult(ADC_INST, DL_ADC12_MEM_IDX_0); //PA15

Mosfet_Temp1  = DL_ADC12_getMemResult(ADC_INST, DL_ADC12_MEM_IDX_1); //PA16
Trans_Temp  = DL_ADC12_getMemResult(ADC_INST, DL_ADC12_MEM_IDX_2); //PA17
Diode_Temp  = DL_ADC12_getMemResult(ADC_INST, DL_ADC12_MEM_IDX_3); //PA18
Mains_Sense  = DL_ADC12_getMemResult(ADC_INST, DL_ADC12_MEM_IDX_4); //PB17

Now I want to get the ADC raw data from DMA via Circular mode , in such manner data should not be corrupt by other ADC data , Plesare share the example code for the same , it is very new  to me to configure the same ,

Best regards,

or In short , we are trying the same with ADC , as we have did in ST , You can see we are using 5 channel of ADC and  collecting the data from preph to memory as shown .

thanks

Hi,

Get it. I will take a look into it and give you feedback soon. 

Best regards,

Cash Hao

Hello , is there any update regarding the same ?

Best regards,

Hi,

Sorry for the late update. 

I have build this project with single DMA for 5 channels of ADC0. Please check if it can meet your requirement. 

adc12_max_freq_dma_LP_MSPM0G3507_nortos_ticlang.zip

Best regards,

Cash Hao

Hello , Thank you for replay ,

I go through it and I also try same setting, but the problem i am facing in application code , how to get the these 5 Channel ADC raw value in a array index( means at 0 index = ADC channel 0 raw , 1 = ADC channel 1 raw value -- LIKEWISE)  through  DMA , Could you please told how Can I do that , the function of DL is very new to me .

Best regards,

Hi,

I am not sure what do you mean by this "at 0 index = ADC channel 0 raw , 1 = ADC channel 1 raw value -- LIKEWISE"

It look like you are looking for this kind of result. 

Best regards,

Cash Hao

Hello ,

Can describe  it how it working , if it is similar as 5 ADC Channel with 5 different DMA Channel then it will work fine for me , 

Please share example code code. 

And I was saying ,

I have array , 

adc_raw[5];

and I want the adc raw values of 5 different channel at each array index, 

(ex - adc_raw[0] =  ACD_channel_0)

Best regards,

Hi,

Yes, for this kind of result, 5different DMA channel will be required for 5 ADC channels.

Best regards,

Cash Hao

Ok , Can you please share the example code for the same?