- Thu Feb 09, 2017 4:01 pm
#62323
Hi, if thats good with the 10K connect the AVR back up and see what happens.
- Fri Feb 10, 2017 12:26 am
#62335
Both running at 3.3V?
- Mon Feb 20, 2017 8:34 am
#62802
I think I have made some progress with this so thank you for pointing me in the right direction.
The issue appears to be that the AVR boots up properly but that when it sets the CH_PD pin high, it reboots due to the voltage dropping below its brown out threshold. This is the case even if CH_PD is tied to VCC. I have added huge amounts of capacitance to the circuit but I can't manage to get around this. They are both running at 3.3V and using the same power supply. Any more ideas?
Cheers
Alex
The issue appears to be that the AVR boots up properly but that when it sets the CH_PD pin high, it reboots due to the voltage dropping below its brown out threshold. This is the case even if CH_PD is tied to VCC. I have added huge amounts of capacitance to the circuit but I can't manage to get around this. They are both running at 3.3V and using the same power supply. Any more ideas?
Cheers
Alex
- Mon Feb 27, 2017 5:32 am
#63084
In case anybody comes across this post with the same problem, what solved this issue for me was removing the 10k resistor between the AVR's reset pin and VCC. The pin is instead left floating. Not ideal I know but it works for me.
Thanks to everybody for their suggestions.
Alex
Thanks to everybody for their suggestions.
Alex
