That is only technical thing of constructor of PCB. One model need power supply direct on ECU plug, and second model no need power supply ( is BDM give power to ECU ) How you explain BDM clone from china have 2 models sh.t'sġ.Use only 74HC14 not LS14 ( se on scope why ).Ģ.Use only short cable from your BDM100 to ECU ( not longer then 20 cm max better short). I never love motorola MCU-s but that BDM put me to reasrch that. If HC11 after that trick not find that 512 bytes it will jump to bottom memory locations where is assembled BUFFALO program from Motorola company as default and execute him.Īt moment I work on last family Motorola debugger to translate it for our need's. The peoples who make that interface are include serial and other thing's for them need's. To put it in that mode you must set MODA and MODB to gnd.Immediately after power on HC11 the RX and TX pins must be short ! HC11 will recognize it own signal from TX pin on self RX and jump to location B600 on internal memory.Īfter that moment we must break our loop back link and make normal connection of RX and TX pin's ( a couple of mS).Īnd we wait him there HEHEHE there is our BDM100 debugger code ( our famous dump. HC11 have one beautiful option : 'special bootstrap mode'. The target program is famous dump which must be inside (internal eeprom section of HC11E1) it size is standard 512 bytes.It is modified dump of old motorola BDM project. So simple and I was research it about 5 days but precise.įTDI232 is simple but fast USB to RS232 converter ( nothing more then RX and TX ). Many peoples think about ' hove that little thing work ? '. I have manuel CMD official but i can't upload it, if you know where i can upload it, say meįirst at all to we dissemble mystery about famous BDM100 background debagger for MCP555/6 serie of motorola MCU. This is power supply in ecu plug, you know, but each ecu have pinout, not same in all ecu I don't say power supply connected to BDM, but power supply connected to plug from ECU same as this pictureīut warning, this picture is connection to plug because this I need correct pinout, I don't want to burn next ecu.what I detect is red cable will be on right, not on left.but I need somebody who confirm my detection.

Yes I have power supply connected to BDM and yes when I push ON it show me error comunication/power and motorola cpu is hot so is broken I think.

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