I said so only because of being careful and not knowing the system well enough I cannot be sure. Thank God I didn't pulled out SRAM chip to inspect it from working mashine 8-OHow could unaddressable memory NOT be empty? If you can't access it to read, you sure can't access it to write, either, right?
Well, good question. The unit is made by Weetech in Germany around 1997' mark. Most of internals are unecessary high end (seems they have put only top end parts). I do not have a schematics but as per my first post the processor is Siemens 80535-N and the SRAM is Mitsubishi M5M51008BP-70LL. There is also EEPROM chip but I've found only firmware being stored there.But why would the manufacturer waste money putting a memory four times the size needed on the board? It sounds like there's some information missing. How about a schematic?
Flash would be much easier? I am not this area specialist, mainly working with wiring looms and we use these units to test products. As for serial port, not sure what format data will be and how I'll be able to use it. Never had my hands on in such environment, started with CAN bus and similar technologies, serial seems to be bit old fashion way, but if someone can provide me some sort of guidance it would be greatly appreciated. :thumbsup:As far as building your external memory card with battery backup, that's a kind of messy solution. Why don't you just use flash? Or why don't you get your serial port working?
* what did you try?I've been trying HyperTerminal and been unsucessfull.
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