lpcware

LPC4370 ADCHS hardware triggering

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by gjdevos on Wed Oct 22 08:50:59 MST 2014
Hi,

My LPC4370 application collects ADCHS samples using software synchronization. I try to switch to hardware
synchronization with these changes:

- Set HSADC CONFIG register HSADC_CONFIG_TRIGGER_EXT instead of HSADC_CONFIG_TRIGGER_SW
- Set GIMA ADCHS_TRIGGER_IN to GPIO5_3
- Check trigger signal on GPIO5_3: OK
- Set P2_3 to FUNC4

With these changes, there is no more data in the ADC FIFO.

Am I missing a step to properly configure external ADCHS synchronization?

Regards,

Gert-Jan

Outcomes