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- #Microwire eeprom programmer manuals#
- #Microwire eeprom programmer serial#
- #Microwire eeprom programmer tv#
#Microwire eeprom programmer tv#
#Microwire eeprom programmer serial#
In Circuit Serial Programming (ICSP) tape with "gold-pin" connectors,.
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#Microwire eeprom programmer manuals#
© Copyright 2003 - 2009 Mcumall Electronics Inc.Full product description, software and user manuals can be found in Products -> REVELPROG-IS. So, you do not need set the voltage manually. The True-USB Willem will adjust the Vcc voltage automatically. Then apply a voltage(hi or lo) on that pin. This way is 100% guaranteed working.įor the RESET signal on Microprocessor, most likely you need read the Microprocessor datasheet and find the RST pin on the Microprocessor.
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The simplest way to read/write the chip is to remove the chip from the PCB and put it on the programmer. Sorry for the newbie questions but I'm quickly getting out of my depth here! So, could the Willem Eeprom programmer be modified to achieve either (or both) these solutions? Is the voltage to Vcc adjustable - would a simple resistor in-line with the chip Vcc leg work? I don't know what voltage would be needed but I guess I could experiment. Or I have to connect a MCU Reset Line (RST) (presuambly to the microcontroller chip not the eeprom?) somehow:Īs you can see both these options are $$$ and a therefore a no-go (I might as well pay for a new airbag unit). I have to supply the eeprom with a low voltage to avoid interference from other parts or the microcontroller: I came across two possible problems/solutions: It seems that in-circuit programming (or is that ISP?) of 93c46 eeproms is not so simple as I had hoped. Following your suggestion I googles around a bit. But this does not mean it 100% works in your case. There are many user reported they successuly in circuit programmed EERPOM by Willem programmer. It is designed for mother board BIOS in-circuit-programming. However, this adapter is not designed for 93CXXX EEPROM. You may need a in-circuit-programming driver. The signal may distorted when it reach the chip from the programmer. So, this is why some programming do not work.Īlso, the wires you connect the programmer to chip may not meet the signal requirement. The programmer only provide guaranteed power for a single chip. It is pretty much depending on the EEPROM circuit. The in-circuit-programming are not guaranteed since the programmer is not designed for programming that way. I want to know if the Dual Power Willem Universal EPROM Programmer advertised on MCUMall would work better?Īll those programmers are designed for programming EEPROM in ZIF socket. So I have come to the assumption that the eeprom programmer does not work or is not suitable. What is going on? I'm obviously getting something because if I disconnect a pin I get nothing. If I read 4 or 5 times in quick succession then I get all 'FF'. Sometimes the display shows a few values, then if I read again I get a few more. Now when I try to read the chip I get spurious readings.
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It is supplied with the Ponyprog software.Īnyway, I have connected the 93Cxx ZIF socket connections via wires and sub-miniature probe clips to the legs of the chip. I believe it to be a Microwire compatible eeprom so I purchases a simple eeprom programmer on eBay from this place: I have been trying to read (first!) and write an ST eeprom with the following no.s written on it: In-circuit eeprom programming of 93C46CB3 MCUmall EPROM BIOS Chip Burner Forum - In-circuit eeprom programming of 93C46CB3