- Tue Nov 16, 2010 6:37 am
#113563
Hello!
Recently a friend of mine gave me a brand new Olimex AVR-MT-128 board in order to develop a custom application for him. I have an AVR-USB-JTAG which I bought long time ago and I have successfully used it before. The AVR-MT-128 board is preloaded with some kind of demo application by Olimex and it is working just fine. But the problem is I cannot connect my JTAG debugger to the MCU of the board. Using other boards I have developed myself there is no problem. When trying to connect to AVR-MT-128's MCU the AVR Studio says it has detected the OCD JTAG adapter but the target device did not return a valid JTAG ID.
Does anyone have a clue what could the problem be?
Is it possible that when producing the board Olimex has disabled JTAG through the JTAGEN fuse although they should not normally do this. I have not tried programming the board through ICSP.
Thanks and regards!
Recently a friend of mine gave me a brand new Olimex AVR-MT-128 board in order to develop a custom application for him. I have an AVR-USB-JTAG which I bought long time ago and I have successfully used it before. The AVR-MT-128 board is preloaded with some kind of demo application by Olimex and it is working just fine. But the problem is I cannot connect my JTAG debugger to the MCU of the board. Using other boards I have developed myself there is no problem. When trying to connect to AVR-MT-128's MCU the AVR Studio says it has detected the OCD JTAG adapter but the target device did not return a valid JTAG ID.
Does anyone have a clue what could the problem be?
Is it possible that when producing the board Olimex has disabled JTAG through the JTAGEN fuse although they should not normally do this. I have not tried programming the board through ICSP.
Thanks and regards!