Program several devices at the same time with single JTAG chain

[Kavin]

There are several Arria 10 FPGAs in my project,and four FPGAs use the same design,  i want to program these FPGAs with  single JTAG chain.Serial program wil take plenty of time ,is it possible to progam these four FPGAs at the same time?

[JohnT_Intel]

Hi,

If you are connecting the FPGA in the JTAG chain, then you can program all the device in the single flow but the device will be configured sequentially.

[Kavin]

Hi JohnT,

Thanks for reply.If these FPGAs are configured sequentially, no time will be saved. I want configure 5 FPGAs parallely, since these 5 FPGAs' bitstream is the same.

Kavin

[JohnT_Intel]

Hi,

If the bitstream is the same then you can programmed all the FPGA at the same time through flash. JTAG will not support it.

You may refer to https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/arria-10/a10_handbook.pdf Figure 143 or Figure 148