Hello all ,
I use the JTAG - ISP programmer from E-LAB,
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And the JTAG connector is connected to the
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MCU-ATMEGA2560 board.
I connected TMS, TCK, /RESET, TDO, VCC, TDI, and GND.
The programmer sends 5V to the board on the VCC line.
In the programmers software I selected JTAG programming option.
But there is no way the programmer wants to communicate with the CPU ATmega2560.
The programmer can not find the ATmega2560.
Do I need to connect any other CPU signals to GND or VCC ? Or do any other trick
?
(The programmer works good with the E-lab ATmega128 boards in JTAG mode.)
A shematic of a CPU board with JTAG interface and ATmega2560 cpu can help to
find the problem.
Please help.
Thanks,
Mega lover
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