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Vintage CPU + external parallel flash + OpenOCD: Feasible? Pointers?

 by jaholmes ¦  Wed May 16, 2018 7:59 am ¦  Forum: OpenOCD ¦  Topic: Vintage CPU + external parallel flash + OpenOCD: Feasible? Pointers? ¦  Replies: 0 ¦  Views: 479

Long story short(-ish): I'm working on a pair of SBC designs based on vintage (1980's) MPUs and am contemplating how best to accomplish in-system programming of flash memories for program storage. A few proprietary (and arguably more straightforward) ways have come to mind, but it seemed to me that ...

Re: FT245R USB FIFO question

 by jaholmes ¦  Mon May 03, 2010 4:10 pm ¦  Forum: SparkFun Product Questions ¦  Topic: FT245R USB FIFO question ¦  Replies: 2 ¦  Views: 556

Thanks, Mark. Yep, I think I'll concede defeat and just throw a resistor net on the bus. Better to move on at this point!

Best,
Aaron

FT245R USB FIFO question

 by jaholmes ¦  Mon May 03, 2010 12:04 pm ¦  Forum: SparkFun Product Questions ¦  Topic: FT245R USB FIFO question ¦  Replies: 2 ¦  Views: 556

(My first post. Yippee!!) Alright. I feel a little dumb for asking, since this feels like something with an obvious answer: I'm designing a USB device based on the FT245R. Looked through the rather sparse datasheet, and everything makes sense... except: How would I prevent my device, which uses the ...