Forum Discussion

chrisfly's avatar
chrisfly
Icon for New Contributor rankNew Contributor
3 years ago

MAX II / MAX V in-circuit programming

Hello everybody, we are currently designing a PCB using a 5MZ240ZT100 CPLD. We need a solution allowing an on-site CPLD firmware update without having to use a JTAG programmer like Altera USB Blast...
ak6dn's avatar
ak6dn
Icon for Regular Contributor rankRegular Contributor
3 years ago

Intel after taking over Altera has deprecated the download of lots of old software. Support tools, Quartus versions, you name it.

I can't understand why, it really does not cost them anything to leave it available, but probably their lawyers said not to (I am guessing).

That being said, there is at least one JAM STAPL third party code base: https://github.com/margro/jam-stapl

Appears to be more or less directly derived from the Altera STAPL v2.5 source code.

It allows for parsing .jbc files and sending them to a bit-banged JTAG port implementation. Perfect for a small micro.

No programming device needed, just a small micro connected to JTAG TCK/TMS/TDI/TDO as GPIO bits.