Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
20803 Discussions

Program several devices at the same time with single JTAG chain

Kavin
New Contributor I
476 Views

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?

0 Kudos
3 Replies
JohnT_Intel
Employee
468 Views

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.


0 Kudos
Kavin
New Contributor I
467 Views

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

0 Kudos
JohnT_Intel
Employee
465 Views

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


0 Kudos
Reply