Hello, again. I’ve assembled and programmed a Blue ESC and would like some advice on the next steps.
I am using a AVRISP XP II programming tool and Atmel Studio 7. With the logic board connected to the power board, flashing is not possible - the power supply powering the ESC collapses and goes into current limit just as the “Program” button is pushed. I suspect that this is due to the fact that the MOSI pin is serving double duty as the L_PWM_CL pin, and applying a signal to it during programming is also causing a MOSFET to operate.
Separating the two boards, and supplying ~10Vdc to the logic board Vbat allows the programming tool to recognize, and program, the processor. I am programming blueesc_id0.hex into flash, with nothing in the EEPROM. I’ve tried leaving the BOOTRST fuse both set and cleared, with the same results; I have verified that the flash is written correctly.
After the processor is flashed, I reconnect the logic and power boards and apply power, with no results - no LED activity, no MOSFET switching. I’ve tried this with no PWM input, and using a Servo Tester.
Any help would be appreciated,