Forum Discussion
Occasional ContributorJTAG failure
Hi,
Based on the shared information, the 10CX150YF780E6G FPGAs is most likely caused by ESD (electrostatic discharge) damage on the JTAG pins. This matches the symptom where TDI is directly echoed to TDO with a short delay.
To avoid this problem in future, we recommend to add ESD protection (such as TVS diodes and series resistors) on the JTAG lines, and to ensure proper ESD handling procedures when connecting the programming cable.
If you have any questions or need further assistance, please let me know.
Thank you.
Fakhrul
Regular ContributorHi,
Based on the shared information, the 10CX150YF780E6G FPGAs is most likely caused by ESD (electrostatic discharge) damage on the JTAG pins. This matches the symptom where TDI is directly echoed to TDO with a short delay.
To avoid this problem in future, we recommend to add ESD protection (such as TVS diodes and series resistors) on the JTAG lines, and to ensure proper ESD handling procedures when connecting the programming cable.
If you have any questions or need further assistance, please let me know.
Thank you.
Fakhrul
K_CrockerThanks, Fakhrul!! I've already added TVS devices and am strongly considering adding 20 Ohm series resistors.
