Hi team,
One of the customers having difficulties with AM335x ADC and I’d like to ask your help.
They are using AM335x ADC to detect power-off event. They have questions regarding how to readouts FIFO0 by EDMA.
The current setting is;
- The power supply voltage of the CPU board is detected by internal ADC (TSC_ADC).
- ADC output is detected as OUT_OF_RANGE interrupt, so the interruption occurs only when the AD signal exceeds certain value.
- EDMA readouts FIFO AD accumulated data to prevent ADC overrun.
The question is, Is it OK to make the EDMA operate continuously, without the interrupt event?
It seems to be able to repeat the same operation (readouts ADC FIFO) when set the TCINTEN Field（Transfer complete interrupt enable） as 0h (interrupt disable) and set linkAddr of PaRAM as [base address + 53*32]. Would the operation like this be a problem?
Best regards,
Kurumi
