- #Arduino as 16 bit 42 pin eeprom programmer full
- #Arduino as 16 bit 42 pin eeprom programmer software
#Arduino as 16 bit 42 pin eeprom programmer software
When built in its dual type form, selection between devices is made by a 6PDT switch, which software can query before powering on the device, checking against the selected device in the user interface, limiting the chance of accidentally blowing an EPROM (which will certainly happen if the switch is in the wrong position). When designing it I was aware that I was likely the only person that’d want something that did both, so have allowed for it to be constructed as a dual 270x/MCM6876x programmer, or 270x only / MCM6876x only. The only supported Arduino is the Mega 2560 R3 or compatible. Like the MCM68766 – they are algorithmically simple to program, so no complicated software stuff to worry about. This adapter typically supplies the extra voltages which aren’t practical to provide through the universal socket.
Models that do support it, require a special adapter which doesn’t come cheap. All of these are required during programming – quite a headache for the designers of universal programmers.
#Arduino as 16 bit 42 pin eeprom programmer full
+26V, +12V, +5V and -5V being the full list. It also needs the same high Vpp voltage, as well as an additional cocktail of voltages.
This type of EPROM is genuinely more difficult to deal with. That having been said, there are some cheap programmers which support the 2716 EPROM, also needing a Vpp of 26V, so quite why MCM68766 is such a difficulty, may also depend on other things, such as pin arrangements, or perhaps just limited demand for it. Most cheap EPROM programms have a max Vpp of 13V. There is nothing algorithmically complicated about programming one of these – the main difficulty centres on the high Vpp voltage (26V). The original prototype – designed late 2016 and mentioned on forums early 2017 Why is MCM68766 difficult to program?
0 kommentar(er)
