Hi,
I'm new to DK, and have no previous experience of programming chips; I only know what I've read here and elswhere. I have bought a Chinese clone XPROG-box to read the code in the Grundig radio for my Smart car. I've installed it on Windows XP. I get an error message when it runs Access violation at address 005E5666 in module XProgDesktop.dll Read of address 00000000 - this happens on 3 different computers - but it appears to run despite this error. I'm powering the XPROG- box from a 12V input, and have tried USB and RS232; USB seems to work best.
The MPU is a Motorola MC68HC11KA4 and I'm connecting to it in circuit using this adaptor. I've checked and rechecked the connections between the XPROG-box and the adaptor; I've included the optional grounding of MODA and connection of MODB to B4. In XProgDesktop, I choose the device details with 0E57S mask as marked on the chip. I've tried a few oscillator settings based on various posts but leaving it on 16MHz seems to work best. All the authorizations show green.
When I click 'Read' the right hand LED shows green, then red, with the middle LED also red, then the left LED green, then an error message on screen "Device is silent. Timeout error" and the right hand LED stays on red.
I don't have a oscilloscope, but I've checked some of the pin voltages during the attempted read. Vcc is 4.97V and drops to 1.25V when the error message appears, MODB goes to about 0.2V and then drops slowly, while RESET goes to 0.4V and drops slowly.
I'm guessing I may need to lift some of the pins, but have no experience of that. So before I do, can anyone tell me how to interpret the LEDs? Or any other advice?
Thanks for any help.
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