Add minnowboard turbot board

content/boards/minnowboard-turbot-E3826.md

+---
+title: Minnowboard Turbot E3826
+---
+
+The Minnowboard turbot is a Intel Atom based SBC
+
+![Minnowboard turbot](/img/minnowboard-turbot-E3825.jpg)
+
+specification:
+* Intel Atom E3826 SoC
+* 2x Intel CPU at 1.46ghz
+* 2GB memory
+* Intel graphics
+* Ethernet port
+* 2x USB (1x USB 3, 1x USB 2)
+* 1x micro SD card
+* 1x SATA II port
+* No RTC
+* Size: 99x74mm
+
+
+
+The board can be bought via
+[mouser](https://mouser.com/new/silicom/minnowboard-turbot/). Note that this is
+the dual-core not quad core board.
+
+### Power control
+
+The board can be powered on/off via a DC power jack:
+* 5V/4A DC input, 2.1mm x 5.5mm, center positive
+
+### Low-level boot control
+
+The board has a 6 pin serial header between the sata port and the microsd 
+slot. The pinout is as follows:
+* 1: GND (closest to sata)
+* 2: CTS
+* 3: VCC (3.3v)
+* 4: TXD
+* 5: RXD
+* 6: RTS
+
+This is a pretty common layout for use with FDTI USB to serial cables; These
+can be bought on e.g. [mouser](https://mouser.com/ProductDetail/FTDI/TTL-232R-3V3/?qs=sGAEpiMZZMuGxYVy11yKKo9Jh1vSyHd5j3BYkuIZ9TA%3D)
+
+Serial port settings: 115200 8N1
+
+#### Network connectivity
+
+Standard ethernet jack; nothing to see here.
+
+### Bootloader
+
+As an intel system the minnowboard comes with a UEFI bios installed, which
+is capable of PXE booting. The recommended way of loading a bootloader is via
+this mechanism e.g. grub, which lava can further drive.
+
+Notes on how to build a suitable grub can be found in 
+[the apertis setup guide](https://www.apertis.org/reference_hardware/minnowboard_setup/)
+
+### Health checks
+
+* Standard x86\_64 Linux kernel can be used for healthchecks
+
+### Lab notes and trouble shooting
+
+Insert SD cards in the SD card slot for testing.