Hello.
I cannot successfully get any program to connect to a Pro Mini in order to flash it.
I have
Installed and re-installed AVR studio. and cant even get my usbasp to appear.
I Installed and tried Atmel's 'Flip' program. no luck.
I have had most success with 'Extreme Burner - AVR' but this just gets as far as actually detecting the usbasp then throws a 'cannot power on/communicate' error.
I have checked and double checked the connections
tried some variations I found online
I did discover that the +3.3v and Ground appear to be reversed when checking the voltages.
swapping these connections gave the best result so far (with extreme burner)
Can anyone point me in the right direction?
many thanks
kepeb:
I did discover that the +3.3v and Ground appear to be reversed when checking the voltages.
swapping these connections gave the best result so far (with extreme burner)
You mean, 3.3V and Gnd were swapped? The board may be burnt.
Hi,
I was under the impression avrdude is installed as part of the arduino IDE (Yes)
As Avrdude is referenced in the log for the Arduino IDE.
Also the pro mini is found, and I successfully transferred the 'blink' example via FTDI board.
I am not experienced with microcontrollers but have seen a lot of PSUs, what Failure Mode would result in the 3v3 and GND being reversed? which part do you think 'burnt#? could this help explain the failure to connect via USBISP?
many thanks
There is a jumper 'jp1' which enables 3v3 or 5v to the 10 pin header.
a cursory visual of the board suggests this is JUST for the output as the rest of the circuit looks to be running on 5v.
there are 2 other jumpers on the board jp2 and jp3
kepeb:
There is a jumper 'jp1' which enables 3v3 or 5v to the 10 pin header.
a cursory visual of the board suggests this is JUST for the output as the rest of the circuit looks to be running on 5v.
there are 2 other jumpers on the board jp2 and jp3
Ok, try this:
1)Connect your USBasp to your arduino (pins mosi,miso, etc..)
2)Open Arduino IDE and enable verbose output.
3) Select programmer and choose USBasp
4) open blink sketch
5)Select Arduino board "arduino pro mini 328p"
6) upload with the option "upload with external programmer"
7) copy verbose and paste it here, so we can know exactly what's going on.
I believe i followed correctly.
1)ok
2)selected both 'verbose' checkboxes in preferences
3) ok
4) ok
5)'arduino pro mini' selected
6) "upload with external programmer" ok
program hangs at this point,ans still says 'uploading'
I have copied the dialog box into a file: