Forum Discussion
JTixi
New Contributor
New ContributorIs it possible to force all I/O HighZ before programming (CPLD Max_V)
On our circuit board, the TDO line as been linked through another I/O pin which is not used in the project (BGA 100 package). The first programmation was good. However the unused I/O are linked to g...
YuanLi_S_Intel
Regular Contributor
Regular ContributorAplogize that TDO check cannot be disabled and all the JTAG pin (TDO) cannot be used as normal IO pin.
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/max-v/max5_handbook.pdf (Page 43)
Even if it is unused, you will need to leave it unconnected as per pin connection guidelines.
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/max-v/pcg-01012.pdf
Regards,
YL
