Hi Maurice, Thanks for your help, with the latest source code commit, We checked that it can support our board now, and the serial log can be captured via COM1. Best Regards From: Ma, Maurice <maurice.ma(a)intel.com&gt; Sent: Monday, September 30, 2019 11:11 PM To: Li, Genshen <genshen.li(a)intel.com&gt;; sbl-devel(a)lists.01.org Subject: [Sbl-devel] Re: UP Xtreme board enabling with Slim Bootloader Hi, Genshen, For UART CN16 on UP Xtreme board, it is the same cable as UP2 board CN7. You can find the signal 10 pin connection info at: https://wiki.up-community.org/Serial_console We tried our steps again, it did work on our board. I am not quite sure what is the issue on your side. Can we enable the CN16 UART first ? With debug info, we can identify issue much easier. Thanks Maurice From: Li, Genshen [mailto:genshen.li@intel.com] Sent: Sunday, September 29, 2019 17:45 To: sbl-devel@lists.01.org<mailto:sbl-devel@lists.01.org> Subject: [Sbl-devel] Re: UP Xtreme board enabling with Slim Bootloader Hi Maurice, We have a up xtreme board with UP WHL01 A0.2_0_0 type, But after following the wiki https://slimbootloader.github.io/supported-hardware/upxtreme.html And Flashed the slimboot binary, there is no output in the HDMI screen, is there any suggestion for this？ Also, we could not get the uart log from the CN16, is there any diagram for the detailed pin layout for the CN16 10-pin layout? thanks From: Sbl-devel [mailto:sbl-devel-bounces@lists.01.org] On Behalf Of Ma, Maurice Sent: Thursday, August 29, 2019 3:44 AM To: sbl-devel@lists.01.org<mailto:sbl-devel@lists.01.org> Subject: [Sbl-devel] UP Xtreme board enabling with Slim Bootloader Hi, All, We recently added a new board (UP Xtreme) support in SBL repo. It uses Intel Whiskey Lake SoC. At this moment many basic features have been enabled, and we will keep working to enable more features. The UP Xtreme board information can be found below: https://up-board.org/up-xtreme/ Detailed SBL build and stitching instructions for UP Xtreme is located at: https://slimbootloader.github.io/supported-hardware/upxtreme.html Thanks Maurice