Post Created date
spi ss line / pin issue
Sorry the morning coffee is slowly making it's way to the brain here so is the atmega32u4 the master or the slave? If slave then pb0 must be an input and you cannot control it,...
Tuesday, 16 July 2019 - 21:35
spi ss line / pin issue
Only issue is the normal SS lines is an ack. I don't quite understand, is the (pb0) pin an output? It MUST be even if not used for a slave select in master mode or the SPI will...
Tuesday, 16 July 2019 - 21:12
Controlling relays using ESP32
Who makes that chip? Not many here would know much about it.   One way of controlling that many relays would be 8 bit port latches (8 bit data port) with another 8 bit to...
Tuesday, 9 July 2019 - 07:52
How to disable 'chip erase' before programming in Atmel Studio?
Is this different that the one I posted above where you uncheck the "Erase device before programming"?   And will a chip or part of a chip that had some previous data written...
Monday, 8 July 2019 - 23:50
issues programming Atmega16u4 using avrispmkII
Where is pin 1 of the chip??? You have C2, C4 and C6 in parallel and connected to pin 1 of the programming header?? Pin2 should be VCC but is connected to a resistor??   I...
Monday, 8 July 2019 - 21:29
How to disable 'chip erase' before programming in Atmel Studio?
But you MUST erase what's there first before programming or you can't program the chip correctly.   If the chip is brand new and blank where you want to put you data then...
Monday, 8 July 2019 - 21:19
Re-Enable JTD?
As I posted in the other thread I simply ended up using a fake portc_status variable. This variable can be loaded with a value at start up and can be modified during a break as...
Saturday, 6 July 2019 - 21:28
Re-Enable JTD?
But he wants to momentarily disable JTAG so that he can read other stuff connected on the JTAG pins, once comms is lost, even if momentarily , then the system crashes....
Saturday, 6 July 2019 - 08:56
Re-Enable JTD?
So you didn't like my reply?
Saturday, 6 July 2019 - 01:08
JTAG disable/enable during debug.
Are you talking about disabling JTAG at run time or during debug? The later is not possible as far as I know. I have never tried it but soon as you disable JTAG (if at all...
Friday, 5 July 2019 - 22:58
ATMEGA324PB is resets while programmed with 16MHz
Full swing has been dropped from the PB range.
Thursday, 4 July 2019 - 07:05
ATMEGA324PB is resets while programmed with 16MHz
  I would start by showing a photo or a diagram of your setup. Then we worry about settings etc.   edit edit had the fuses upside down. Still don't see anything wrong...
Thursday, 4 July 2019 - 06:56