Dear Valued Customer,

We are contacting you today to let you know that the Rev 11 FPGA is Now Shipping with TS-7970.  Technologic Systems strives to provide full feature support for all optional interfaces and determined that the previous FPGA revision had some bugs in optional UART serial interfaces.  Most users would not have been impacted by this bug, and there are no impacts to any existing Linux software.

The affected products are: TS-7970

Some customers encountered issues when trying to utilize the optional UARTs that can be routed to the Daughter Card interfaces thru the FPGA cross bar.  The FPGA Rev 11 fixes two bugs with the TXEN on the CPU uarts. One causes TXEN to deassert early sometimes in multibyte transmissions, and another addresses a problem where TXEN would stay asserted much longer than it should.   Please note that these are not the UARTs routed out by default to any connector interfaces on the T7970, but users could route them out through the crossbar.

Technologic Systems appreciates your business. If you have further questions or concerns, please contact us by either replying to this email or filling out the contact us form at

Best Regards,

Technologic Systems
16525 East Laser Drive
Fountain Hills, AZ 85268
Phone: (480) 837-5200
Fax: (480) 837-5300