topic Re: TWR-K20D72M ADC0 can't work in Kinetis Microcontrollers

TWR-K20D72M ADC0 can't work

bhavinmaru — Sat, 23 Jul 2016 07:26:56 GMT

Hello,

I am working with TWR-K20D72M board as controller and IAREW(IAR Embedded Workbench) software for programming.i download the sample codes from the below link

http://cache.nxp.com/files/32bit/software/KINETIS_72MHz_SRC.zip?fpsp=1&WT_TYPE=Lab%20and%20Test%20Software&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=zip&WT_ASSET=Downloads&fileExt=.zip

In these sample codes they give example of Potentiometer(which is given on board) and Potentiometer is interfaced with controller's ADC1.this code works correctly.i want to run ADC0.i make and configure ADC0 code as per the sample code given in the above downloaded examples.please try to solve my below query

-- in ADC0 code isr for ADC0(interrupt for ADC0) is not generated

-- see my ADC0 configuration functions sim_init() ,pdb_init() , adc_init(), int_init() is there any mistake in those functions?

i attached my code for your reference.please help me so that i can generate interrupt for ADC0.

Thank You

Bhavin

Original Attachment has been moved to: ADC0.zip

Re: TWR-K20D72M ADC0 can't work

jeremyzhou — Wed, 27 Jul 2016 07:03:52 GMT

Hi Bhavin,

After had a look through the code you uploaded, I found that you use the PDB channel1 to trigger the ADC, however each channel is associated with one ADC block, in anohter word, the PDB channel0 is associated the ADC0, then channel1 to ADC1.

I think it's the root cause of the issue.

Have a great day,

Ping

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Re: TWR-K20D72M ADC0 can't work

bhavinmaru — Thu, 28 Jul 2016 06:14:47 GMT

Hi jeremyzhou,

Thank you for your reply now ADC0 works properly.