Cossie1
26-01-2009, 11:11 AM
From colby
It's looking like I will not be able to release a version of EcuFlash for the Mitsubishi H8 processor family of ECUs that works with the Openport 1.3. The reason being that the Openport 1.3 power supply circuit that generates the ~16V the ECU needs to supply the regulated reflashing voltage to the CPU does not have a sufficient current capacity, causing this voltage to drop to levels insufficient to safely flash the CPU (the CPU goes into a protection mode to prevent you from even trying). The Openport 1.3 does generate a voltage large enough to cause the processor to startup in boot mode, which is why you could read and compare in past versions, but unfortunately, it just isn't usable for reflashing. Later processors like the SH2 and M32R generate this reflash voltage internally, and have minimal current requirements, which is why the Openport 1.3 works with the Evo 7/8/9 without a problem.
It's looking like I will not be able to release a version of EcuFlash for the Mitsubishi H8 processor family of ECUs that works with the Openport 1.3. The reason being that the Openport 1.3 power supply circuit that generates the ~16V the ECU needs to supply the regulated reflashing voltage to the CPU does not have a sufficient current capacity, causing this voltage to drop to levels insufficient to safely flash the CPU (the CPU goes into a protection mode to prevent you from even trying). The Openport 1.3 does generate a voltage large enough to cause the processor to startup in boot mode, which is why you could read and compare in past versions, but unfortunately, it just isn't usable for reflashing. Later processors like the SH2 and M32R generate this reflash voltage internally, and have minimal current requirements, which is why the Openport 1.3 works with the Evo 7/8/9 without a problem.