MSPM33-SDK: ADC management and assigned pin

Sebastien Le Diouris

Prodigy 180 points

Part Number: MSPM33-SDK
Other Parts Discussed in Thread: SYSCONFIG

Hello,

I am working on eval board MSPM33C31A, and I try to add an ADC pin management.

I configured some items, but I do not find how/where I can assign the pin which will be the ADC input.

In PinMux, there is no pin choice.

Is it possible to do in this interface, or the assignation will be done in the code (if yes, which function used ?)

Thanks by advance

3 months ago

0 Erik Vaughn 3 months ago

TI__Expert 3760 points

Hi Sebastien.

if you update the SOC channel number this will change which pin can be used. The table below can check the datasheet for the corresponding pinout of each ADC channel. The naming convention is Ax_y refers to an ADC instance x and channel y. For example A0_1 would be adc instance 0 and adc channel 1.

0 Sebastien Le Diouris 3 months ago

Prodigy 180 points

Hello Erik,

I changed the "SOC0 Channel" in "SOC Configurations", but nothing changed.

Have a nice day

0 Erik Vaughn 3 months ago in reply to Sebastien Le Diouris

TI__Expert 3760 points

Hi Sebastien,

Sorry for the delays. The can you please try changing the ADCIN value? this should change which pin you can select.

0 Sebastien Le Diouris 3 months ago in reply to Erik Vaughn

Prodigy 180 points

Hello Erik,

thanks for the answer but I already did this without effect.

But I think there is a bug in CCS, let me explain you why:

I have a project where I have integrated some modules (SPI, CAN, TIMER, ...) and after I wanted to integrate the ADC module, so I took an ADC example proposed. I configured exactly .syscfg file from example to mine, but impossible to have the pin assigned. I tested lot of things, but nothing.

So I have no other choose to integrate mine .syscfg configuration in the .syscfg of example. After configurate everything, I see in my example syscfg file, the assigned pins have disapeared. So I decided to remove one by one the modules I have integrated, and I see, the MCAN module seens the issue.

So I decide to come back on my project, to remove MCAN module to see if the assigned pins for HADC will be present, but without remove MCAN module, the assigned pins appears.

I do not know if my comment will help you, just to know

0 Erik Vaughn 3 months ago in reply to Sebastien Le Diouris

TI__Expert 3760 points

Hi Sebastien,

This is unfortunate to hear I can give this feedback to our software team to see if we can fix this in a future release.

Are you copying certain text from the .syscfg file it's self when migrating over or just adding the settings directly? Also what's the version of sysconfig, CCS, and the SDK are you using?

We recently released version 1.04 of the SDK to ti.com :https://www.ti.com/tool/MSPM33-SDK#downloads. this might help with your issue.

0 Sebastien Le Diouris 3 months ago in reply to Erik Vaughn

Prodigy 180 points

Hello Erik,

no I do not write directly on the syscfg file, I use only the interface.

about versions :

CCS V20.5.0.28_1.11.0

SDK V1.3.0.01

Hope help you

0 Erik Vaughn 3 months ago in reply to Sebastien Le Diouris

TI__Expert 3760 points

Hi Sebastien,

Are you able to share the not working sysconfig file? I am unable to reproduce this issue.

0 Sebastien Le Diouris 3 months ago in reply to Erik Vaughn

Prodigy 180 points

Hello Erik,

sorry for the delay of my response, but sorry no, because now it works

+1 Erik Vaughn 3 months ago in reply to Sebastien Le Diouris

TI__Expert 3760 points

I'm glad it works now! I'll go ahead and close out this thread.

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MSPM33-SDK: ADC management and assigned pin