LPC MicrocontrollersのトピックRe: External Clock for ADC on LPC Link-2

External Clock for ADC on LPC Link-2

JiaAn — Fri, 14 May 2021 03:42:33 GMT

Hi, I am trying to use LPC Link-2 ADC.

I can attach an internal clock for ADC. And also I can output the clock on P1_19.

But I would like to know how to use an external clock for ADC?

Thanks for help

ZhangJennie — Mon, 17 May 2021 03:54:46 GMT

Please let me know the part number. I will check.

Thanks,

Jun Zhang

JiaAn — Mon, 17 May 2021 05:06:27 GMT

Hi ZhangJennie,

I am using LPC-Link-2. NXP LPC4370

ZhangJennie — Mon, 07 Jun 2021 04:33:22 GMT

JiaAn

For LPC4370,

ADC0/1 use BASE_APB3_CLK,

ADCHS is clocked by BASE_M4_CLK (for register interface) and BASE_ADCHS_CLK( for conversion rate.)

All above clock can be sourced from external clock. For detail, see UM10503, Table 122. Clock sources for output stages.

Have a nice day,

Jun Zhang