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| Is XC9572XL programmable with 5 volts? http://forum.6502.org/viewtopic.php?f=10&t=7488 |
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| Author: | fabbrimichele75 [ Wed Feb 01, 2023 10:03 pm ] |
| Post subject: | Is XC9572XL programmable with 5 volts? |
Hi there, I hope this questions wasn't already asked but I couldn't find an answer yet. I've been thinking of programming a XC9572XL with an arduino and JTAGWhisperer (https://github.com/sowbug/JTAGWhisperer). What I can't understand is if the XC9572XL has JTAG pins 5 volts compatible or if only the I/O pins are 5 volts compatible. Another doubt I have is if the power supply should be 3.3 volts even when the I/O pins are driven with 5 volts. Thank you! Michele |
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| Author: | GARTHWILSON [ Wed Feb 01, 2023 10:06 pm ] |
| Post subject: | Re: Is XC9572XL programmable with 5 volts? |
See if what the search turns up answers your question: search.php?keywords=XC9572XL&terms=all&author=&sc=1&sf=all&sk=t&sd=d&sr=posts&st=0&ch=300&t=0&submit=Search |
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| Author: | fabbrimichele75 [ Wed Feb 01, 2023 10:26 pm ] |
| Post subject: | Re: Is XC9572XL programmable with 5 volts? |
Thank you Garth Wilson. I had a look before posting but I couldn't find anything, I'm gonna double check. |
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| Author: | fachat [ Wed Feb 01, 2023 10:49 pm ] |
| Post subject: | Re: Is XC9572XL programmable with 5 volts? |
I am using the xc9500xl series too with 5V signals. However to program them I use a Xilinx programmer, that uses a separate pin to sense the supply voltage. So, by default the programming interface pins are used with 3.3V. I wouldn't recommend programming it with 5V, but the datasheet should be your friend. The power supply is always 3.3V. The outputs are 3V TTL. Inputs accept 5V TTL signals though. You can see my MicroPET for an example how I used it in an otherwise 5V system. André |
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| Author: | fabbrimichele75 [ Fri Feb 03, 2023 8:12 pm ] |
| Post subject: | Re: Is XC9572XL programmable with 5 volts? |
Thank you Fachat, I'm going to program the xc9500xl usi a raspeberry pi and xc3sprog to be on the safe side. I found a couple of nice tutorials for that: https://blog.jimmo.id.au/2018/11/26/pro ... ry-pi.html https://linuxjedi.co.uk/2021/11/25/revi ... pberry-pi/ |
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