Hi anyone at AVR FREAKS
I'm having a potential critical problem with my STK500 board. It worked fine earlier today. I made a few changes to my program which i was going to program on to the AVR chip.
I then get this error message in Atmel Studio 6.2:
Unable to connect to tool STK500 (COM3)
TCF (TCF command: Tool:connect failed.)
I have a ATmega32 on the board which uses an external crystal (16 Mhz).
I have tried to connect to another STK500 board from my PC on COM3, which worked just fine. So its seems like i have an hardware problem of some sort.
In short: My program is recording data from the ADC (the analog signal is coming from an Analog Discovery) - the MCU is then doing some processing on this before sending through the UART (where i connect the RS232 cable in the RS232 Spare Port). I have then recorded this data with a small application on my PC. All of this worked fine earlier today. I just made a few changes to my program which i wanted to program to the microcontroller, but i couldn't connect anymore (and yes, i have switched my RS232 cable to the other port).
The 2 green LED is ON, and the red power LED is on. For some reason i just can't seem to connect to the board anymore :(
I also tried to measure the voltage on the 2 voltage regulators, which seems to be working just fine.
I experienced the same error on another STK board yesterday which i'm not longer able to use, so therefor i borrowed this one from a friend.
Need help ASAP as i have an exam hand in next friday...
Hope anyone is able to help me out with this problem.