A while ago I download Quartus II 11.1 Web, picked up one of these fake USB blaster, and tried looking/reading the code from PLCC 44 ATF1502AS-10JU44. Quartus ID the Blaster device ok, but couldn't ID the ATF1502AS-10JU44 (nor read it, obviously). I just assumed it was a later version of Quartus (which doesn't support fake Blasters) or I had set it up wrong. Anyhow, the other day, I happened to come across an old CPLD video by Bill of Hackaday/Commodore fame, and I noticed he was talking about the fake USB Blaster and more importantly; he was powering his CPLD project with an external PW source. That gave me the idea of checking the PW of the USB blaster, and I noticed its only reading at 2.40v.
1) Is that the correct/normal voltage?
2) Should I disconnect the Blaster's 2.4v and use a 5v external power supply instead? (Or 3.5v)
Appreciate any advice.
Altera USB Blaster (fake) not reading CPLD
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Re: Altera USB Blaster (fake) not reading CPLD
Sorry, a bit late to this, but since no-one else has replied:
I use a clone USB Blaster (I assume it's a clone, anyway) on my CPLD projects. As I understand it, you have to power the chip being programmed separately anyway -- the 3V3 line on the JTAG header is just to make sure the chip *is* powered, before the blaster will talk to it.
Cheers,
BW.
I use a clone USB Blaster (I assume it's a clone, anyway) on my CPLD projects. As I understand it, you have to power the chip being programmed separately anyway -- the 3V3 line on the JTAG header is just to make sure the chip *is* powered, before the blaster will talk to it.
Cheers,
BW.
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Re: Altera USB Blaster (fake) not reading CPLD
Unzip this and put it into your Data/Atmel folder:
Sorry, this should have been in the zip too:
Place that in the same location
Sorry, this should have been in the zip too:
Place that in the same location
Re: Altera USB Blaster (fake) not reading CPLD
I had the same issue with the programmer not ID'ing the JU44 correctly and I had to mess around with those files.
It was ages ago, so dont ask me what I did, I cant remember
Oh and you should power whatever you are programming with 5v, you should leave the 3.3v supply from the blaster, that's fine.
It was ages ago, so dont ask me what I did, I cant remember
Oh and you should power whatever you are programming with 5v, you should leave the 3.3v supply from the blaster, that's fine.
Re: Altera USB Blaster (fake) not reading CPLD
Also note the PLD has to be powered up as well...
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: Altera USB Blaster (fake) not reading CPLD
Thanks, I appreciate you replying. The YT video from former Commodore engineer Bill (hackaday) he didn't mention a separate power supply, but I could see he was using one, with his project. I had a similar nightmare with a PIC3 programmer (having to use a separate PS). Thanks, now I can have a bash, without worrying about burning the CPLD outBadwolf wrote: ↑Sat Sep 26, 2020 10:40 pm Sorry, a bit late to this, but since no-one else has replied:
I use a clone USB Blaster (I assume it's a clone, anyway) on my CPLD projects. As I understand it, you have to power the chip being programmed separately anyway -- the 3V3 line on the JTAG header is just to make sure the chip *is* powered, before the blaster will talk to it.
Cheers,
BW.
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Re: Altera USB Blaster (fake) not reading CPLD
Thanks for confirming, my next question.PaulJ_2.0 wrote: ↑Sat Sep 26, 2020 11:47 pm I had the same issue with the programmer not ID'ing the JU44 correctly and I had to mess around with those files.
It was ages ago, so dont ask me what I did, I cant remember
Oh and you should power whatever you are programming with 5v, you should leave the 3.3v supply from the blaster, that's fine.
Re: Altera USB Blaster (fake) not reading CPLD
@PaulJ_2.0 could you please upload files and not link to external sites thanks.
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https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.