That is the latest firmware on KO4BB.
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Look at the size of the four HEX files when loaded into your programmer. ?You will need (4) 27C020-150 2Mbit (256kbyte) EEPROMs to hold them all.
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The firmware doc is wrong in saying that you need (4) 1Mbit EEPROMs. ?I think it's only true for version H (95.02.21) or older. ?And if you use anything other then 2Mbit EEPROMs, you need to restrap the EEPROM socket selects (see schematic). ?Save yourself a headache and stick with 27C020-150.
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I did the same upgrade from G to L on one of my 8595E analyzers: (2) 27C020-150 to (4) 27C020-150. ?Worked fine. ?I bought (4) 27C020-150 for the upgrade and saved the old EEPROMs in case something went wrong.
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-mark
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On Sat, Apr 5, 2025 at 01:17 PM, KB2LMN wrote:
Well I believe I found the newest software
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My question is I only have 2 EPROMS in my 8594E do I need 4 or can the files be combined some how I to 2. If not I will need to pick up 2 EPROMS.
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Andrew
