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PSoC™ 5, 3 & 1 Forum Discussions

Mihai
Level 1
First reply posted First question asked First like given
Level 1

Hello all,

I am trying to stop a DMA transfer at a specific moment using the trq pin.

As nowhere in the documentation a timing diagram is shown with the trq input, i've used a clock on the trq signal until the nrq is generated.

But this creates some problems:

- when i use the trq as mentioned above i have 2 extra transfers than i should ( i am using an analyzer on the drq line)

- without the trq i do not have this behaviour

 

Is there any changes that the trq might force more transfers?

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1 Reply
Hari
Moderator
Moderator 750 replies posted 500 replies posted 250 solutions authored
Moderator

Hi @Mihai 

 

Please have a look at this thread - https://community.cypress.com/t5/PSoC-General/How-do-I-GUARANTEE-input-termination-of-DMA-using-TRQ-...

We are investigating this issue internally regarding the trq signal and will update once we find the root cause. 

 

Best regards, 
Hari