Forum Discussion
Hi,
Usually if this happen, it is detecting something is connected to the 10-pin header of the JTAG pin. You can try to clean the 10-pin header if is is able to resolved the issue. If not then the only method is to use external USB-Blaster.
- JWrig256 years ago
Occasional Contributor
Hi,
I purchased the external USB-Blaster II device but unfortunately it did not solve the problem. I used Quartus 14.0 to try and program the FPGA using the new part but the error still pops up saying that Quartus can't find the device programming hardware. I have tried running the jtagconfig --debug command, and both the external USB-Blaster and the direct internal USB-Blaster get the same output being "Unable to read device chain". The external USB-Blaster says "JTAG chain broken" and the internal USB-Blaster says "Hardware Disabled". I am not sure what to do now. I will try to use Quartus 18.1, the first version I was programming with and see if that works but I have my doubts. Any help would be appreciated.