External Clock for ADC on LPC Link-2

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External Clock for ADC on LPC Link-2

1,054 次查看
JiaAn
Contributor I

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

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1,014 次查看
ZhangJennie
NXP TechSupport
NXP TechSupport

Hi JiaAn

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

Thanks,

Jun Zhang

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1,008 次查看
JiaAn
Contributor I

Hi ZhangJennie,

 

I am using LPC-Link-2. NXP LPC4370

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973 次查看
ZhangJennie
NXP TechSupport
NXP TechSupport

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.

ZhangJennie_0-1623039588474.png

ZhangJennie_1-1623039614438.png

 

Have a nice day,

Jun Zhang

 

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