topic Read ADC with Timer ISR in Processor Expert Software

Read ADC with Timer ISR

trilokjt — Thu, 07 Apr 2016 09:35:46 GMT

Hi,

I'm trying to read external ADC on my MK60N512 board. Below are the following requirements

1 . Read ADC after every 50 ms (1 Channel)

2. Read all channels of ADC s (2 No), 16 Channels( Total = 800 ms)

3. In 1 Sec I need to read ADCs and send to LCD( in remaining 200 ms after reading all ADC channels )

4. Repeat the above process again

Please help me out to learn

Thank you

3lok

Re: Read ADC with Timer ISR

marek_neuzil — Mon, 11 Apr 2016 09:10:14 GMT

Hello,

I suppose that you want to use KDS 3.0.0 and Processor Expert (a Kinetis project in KDS 3.0.0 with Processor Expert).

You can use ADC_LDD component to measure all ADC inputs (channels) you need and TimerUnit_LDD for timing of these measurements. The ADC device support also triggers from timer devices (PIT, Flex timer) and therefore you can trigger measurement of your channels by a timer. So you can select the sample group, enable the trigger (StartSingleTriggeredMeasurement method) and wait for the event (OnMeasurementComplete). Or you can also control ADC conversions directly by your application in a timer events (without trigger).

For details see the Help of these components. There is also section Typical usage that contains typical usage of the component's methods.

Best Regards,

Marek Neuzil

Re: Read ADC with Timer ISR

trilokjt — Mon, 25 Apr 2016 12:07:25 GMT

Okay, Thank you Sir.