LPC845 ADC Hardware Trigger (CTIMER0_MAT3)

riteshpanchal00 — Sat, 25 Apr 2020 13:39:20 GMT

Hello,

I am using LPCXpresso845MAX kit.

I want to Verify Amplitude and Frequency of 60Hz Sine Wave through ADC.

I am planning to Use ADC with CTIMER0_MAT3 Hardware Trigger (Match 3 channel of CTIMER0).

I have configured ADC channel 3 in Sequence B and other ADC channel (which are software triggered used for other purpose) in Sequence A.

And configured CTIMER with 0.16ms timer interval. (100 ADC sample for 60Hz(=16.66ms) period)

But I am not getting ADC Sequence B Interrrupt.

Re: LPC845 ADC Hardware Trigger (CTIMER0_MAT3)

jeremyzhou — Mon, 27 Apr 2020 07:06:54 GMT

Hi Ritesh Panchal ,

Thank you for your interest in NXP Semiconductor products and
for the opportunity to serve you.
I'd like to suggest you'd better go through the generated code firstly, maybe you can find something miss.
In addition, the post (DMA Ping-Pong application ) presents how to use the SCTimer to trigger the ADC to start a conversion sequence, it may give you some insight.

Have a great day,
TIC

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LPC MicrocontrollersのトピックLPC845 ADC Hardware Trigger (CTIMER0_MAT3)

LPC845 ADC Hardware Trigger (CTIMER0_MAT3)

Re: LPC845 ADC Hardware Trigger (CTIMER0_MAT3)