topic Re: BCTU List Configuration in ADC in S32K

BCTU List Configuration in ADC

Mithulesh23 — Mon, 08 Apr 2024 11:01:30 GMT

Hi Team,

I am configured some pins for BCTU Hardware trigger as List items. And I need to configure some additional pins. But,It shows watermark limit reached. I cannot set the value more than 7.

Please assist on this issue.

Thank you

Re: BCTU List Configuration in ADC

Dev15 — Tue, 09 Apr 2024 08:59:06 GMT

@Senlent ,

Please assist on this configuration.

Thank you

Re: BCTU List Configuration in ADC

Senlent — Thu, 11 Apr 2024 05:38:04 GMT

Hi@Mithulesh23

The size of FIFO2 only have 8 words and you can't set the FIFO2 watermark value more than 7.

S32K3XXRM_rev8->Chapter 65.

Re: BCTU List Configuration in ADC

Mithulesh23 — Thu, 11 Apr 2024 06:03:50 GMT

@Senlent ,

Thank you for the clarification.

So, we can be able to create totally 24 channels in the list for ADC BCTU. Please confirm.

Re: BCTU List Configuration in ADC

Senlent — Thu, 11 Apr 2024 06:30:20 GMT

Hi@Mithulesh23

yes, you can create 24 channels in the list.

What does "Watermark" do :

Re: BCTU List Configuration in ADC

Mithulesh23 — Thu, 11 Apr 2024 10:23:49 GMT

@Senlent,

Thank you for confirming it.

I have already configured 16 channels in the BCTU list.

Now, in the next list I'm trying to configure below listed 8 channels. As the FIFO2 size limit is 8, please help me to configure with below combinations.

ADC0_S15
ADC0_S14
ADC0_S13
ADC0_S12
ADC0_S11
ADC0_S18

ADC1_S16
ADC1_S18

Thank you

Re: BCTU List Configuration in ADC

Senlent — Fri, 12 Apr 2024 06:31:23 GMT

Hi@Mithulesh23

Please refer to the sample project in the link below which is the same as your requirement.

https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K344-PIT-BTCU-parallel-ADC-FIFO-DMA-DS3-5-RTD300/ta-p/1732444