2PAC Mafia
Member
Hello,
I have a MTU old ECU to repair. It´s based on a MC68332 microprocessor. I can´t enter inside the ECU with the usual software with PC because I see it´s like in reset state (seems not in reset but it´s blocked). When I checked the reset pin at MC68332 which should be in H state I have pulses, peaks to L state. I guess something associated to D0, D8 and D9 signals not correct...
Then I have a question because I have no experience about microprocessors, I´ve seen on the board a connector with 10 pin going to processor which should be for programming or at least access on the processor. I´ve seen in Internet also there are development boards to work with these processors, if I have one of these development boards is possible to access to this processor and check behavieur or is it blocked by the manufacturer? Can I download the program from the processor, put a new one and program it again with downloaded software?
Thanks. Best regards.
I have a MTU old ECU to repair. It´s based on a MC68332 microprocessor. I can´t enter inside the ECU with the usual software with PC because I see it´s like in reset state (seems not in reset but it´s blocked). When I checked the reset pin at MC68332 which should be in H state I have pulses, peaks to L state. I guess something associated to D0, D8 and D9 signals not correct...
Then I have a question because I have no experience about microprocessors, I´ve seen on the board a connector with 10 pin going to processor which should be for programming or at least access on the processor. I´ve seen in Internet also there are development boards to work with these processors, if I have one of these development boards is possible to access to this processor and check behavieur or is it blocked by the manufacturer? Can I download the program from the processor, put a new one and program it again with downloaded software?
Thanks. Best regards.