I would like some advice please on which of the MCUMall programmers you would advise to read/program an ST M28F102 PLCC44 Flash eprom?
I have already purchased a TOPWIN2004 of eBay and although this chip is listed as a supported device I have been unsuccessful. Even after realising that the included DIP40-PLCC44 adaptor was wired for PIC and not eprom (Vss / NC pins swapped) Topwin3.5 software just states 'no chip in place'.
Looking at the programmers listed both the True-USB Willem programmers GQ-3X and GQ-4X appear to support this flash eprom. However I am not sure which of the adaptors I would need as the device device list gives:
ADP-054, ADP-055 16 BIT EPROM ADAPTER
but would this not work also:
ADP-017 AT PLCC44-DIP40 adapter.
Also, is there any difference other than cosmetic between the GQ3X and GQ4X programmers? I see the GQ3X has 32 pin ZIF socket - how can this read a PLCC44 (effective pin count 39)?
I just don't want to waste more money on another programmer that does not work.
Thanks for quick reply ZLM. With a warrantly like that I'll order a GQ-4X then.
One thing though - would the ADP-017 AT PLCC44-DIP40 adapter not work for this flash eprom once the jumpers are set to swap pins 12/13 and 34/35 (I think it shows only eprom 27 series on the picture but I assume they share the same pinout as 28 series eprom)?
Also, any thoughts on the possibility of in-circuit reprogramming this chip with the GQ-4X?
I would like some advice please on which of the MCUMall programmers you would advise to read/program an ST M28F102 PLCC44 Flash eprom?
I have already purchased a TOPWIN2004 of eBay and although this chip is listed as a supported device I have been unsuccessful. Even after realising that the included DIP40-PLCC44 adaptor was wired for PIC and not eprom (Vss / NC pins swapped) Topwin3.5 software just states 'no chip in place'.
Looking at the programmers listed both the True-USB Willem programmers GQ-3X and GQ-4X appear to support this flash eprom. However I am not sure which of the adaptors I would need as the device device list gives:
ADP-054, ADP-055 16 BIT EPROM ADAPTER
but would this not work also:
ADP-017 AT PLCC44-DIP40 adapter.
Also, is there any difference other than cosmetic between the GQ3X and GQ4X programmers? I see the GQ3X has 32 pin ZIF socket - how can this read a PLCC44 (effective pin count 39)?
I just don't want to waste more money on another programmer that does not work.
Thanks.
did you have any success using the GQ-4X (not v4) to write to M28F102 chip? I am trying to do the same but write process always stalls at 19%
Programmer for M28F102
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Posted - 04/30/2010 : 14:44:17
