Conversion frecuency in ADC burst mode (LPC802)

asier — Tue, 15 Mar 2022 19:13:13 GMT

Hi,

Is it possible to do conversions slower in ADC burst mode ?

I'm doing 1 channel conversion in SEQA burst mode. Interrupt with entire sequence is enabled.

My issue is that the interrupt callback is happening every 12us, so as soon as code leaves interrupt callback it is called again and code in main is almost blocked.

Is there any way to slow down the conversión rate ?

Thanks in advance,

Asier.

Re: Conversion frecuency in ADC burst mode (LPC802)

ZhangJennie — Wed, 16 Mar 2022 07:48:42 GMT

Hi asier

The ADC controller uses the system clock as a bus clock. We can only reduce ADC conversion time by reducing ADC working clock. No option to slow down burst conversion rate only.

Have a nice day

Jun Zhang

LPC MicrocontrollersのトピックRe: Conversion frecuency in ADC burst mode (LPC802)

Conversion frecuency in ADC burst mode (LPC802)

Re: Conversion frecuency in ADC burst mode (LPC802)