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You could also go with AT28C256C. 27C EPROM is a bit antiquated. Microchip Direct has the AT28C256 in stock. If you need a full 64KB of EEPROM, you can use two of them and use the upper address pin on the 8051 to gate mask the PSEN signal, which will assign one EEPROM to the lower 32KB of the...
Microcontroller can be any one of the Atmel AT89S series. I highly recommend the Atmel AT89S8253. Hardware, pin, and code compatible with the 8032 with 64KB external code and data addressing modes just like the MCS-51 family. Also has dual data pointers, 12KB internal flash, and 1KB internal...
Y’all do realize Microchip maintains an archive for the entire MPLAB Ecosystem, going back as far as MPLAB 5? Even their HITECH C and C18 compilers are archived there. They’re still available. Just no longer supported.
https://www.microchip.com/en-us/tools-resources/archives/mplab-ecosystem
Thanks Nigel! Yeah I'd even toyed with the idea of writing an application for Raspberry Pi to use its SPI port for AT89S devices. I just don't have the time these days. Especially when there's just something on the market already that will do exactly what I need.
I just got my mikroProg 8051...
So I have an Atmel AT89ISP cable. After 15 solid years of faithful service, the only machine I had with a parallel port quit on me a year ago.
Actually, I did have a Sony Vaio from 2005 that had been sitting for many years. Last time I ran it, it was a running machine. Decided to get that going...
Hi Ian. Been awhile.
As it turns out, it's actually assembling it just fine. The MPLAB disassembly listing file, for some reason, just wasn't reflecting that. But a look into the program memory view clearly shows it there.
Hi all.
When building a string using the DB directive in pic-as, only the first two characters get built into flash. It's as if it wants each word on its own separate line.
PSECT myConstant,class=CODE,delta=1
someLabel:
DB "This is my string",0
Only the "T" and the...
Mike - K8LH I ended up buying the "expensive PICkit 4". It works beautifully without the issues that the PK3 had. In addition to new device compatibility, it also does AVR ISP as well as JTAG. To top it off, it also features a microSD slot for Programmer-To-Go (load your field updates onto the...
I posted on the Autodesk forum about it. James Youmatz reached out and had this to say -
I then check my DM's -
They actually gave it to me for $100/yr, which is about 44% cheaper than I was paying going at the monthly rate. So in the end they did take care of me. The only catch is (and I...
So I had to cancel everything I auto subscribe to last month to fix a temporary financial snafu. Prior to doing this, I had an EAGLE Standard subscription at $15/mo that had been going for 3 years.
So I fix my finances go, then go to reinstate my subscription.
Oh no...they no longer offer...
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