LFun0
New Contributor
New Contributorprogram device Epm
Hi all, I need to burn cpld epm7256 and while using byteblaster usb and quartus 13 i can't access the device as it seems on the attached files, what does i miss?
Thank you.
Forum Discussion
1 Reply
ShafiqY_IntelFrequent Contributor
Hi LFun0,
The TDI and TMS pins have internal weak pull-up resistors, while the TCK pin has an internal weak pulldown resistor.
Intel recommends to:
- pull the TMS signal high externally through 10-kΩ and the
- pull the TCK signal low through 1-kΩ resistors.
Please refer to following link for more details (on page 5):
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an100.pdf#page=5
Thanks😉
