<error message>
Error: Can't access JTAG chain
Error: Operation failed

If you see this error, please check the following:
- Is power being supplied to the board?
- Is your computer and programming hardware (download cable) connected?
- Have you installed the drivers for your programming hardware?
- Have you selected the correct hardware type in Hardware Setup?
- Is the connection orientation between the 10-pin header on the board and the cable connector correct?
If you are using ByteBlaster II or ByteBlasterMV via an extension cable, disconnect it before writing.
Please do.
 
Related Information
Material “Quartus® II Getting Started Guide - Device Programming』
 
Altera® Homepage
- Download Cable Page
　　https://www.intel.co.jp/content/www/jp/ja/products/details/fpga/development-kits/cables-adapters.html