ADLINK nanoX-BASE - Manual (Page 36)

nanoX-BASE User’s Manual Page 36
7.2 SPI Secondary BIOS - COM.0 Rev. 2.0
SPI is supported by PICMG COM.0 Rev. 2.0 to provide a Secondary BIOS for COM Express
Rev 2.0 modules that support a SPI Secondary BIOS.
When using SPI Secondary BIOS, the FWH BIOS chip must be removed from the carrier
board. If the FWH BIOS chip is not removed, the COM Express module may not boot
correctly.
To use the BIOS on the module:
f
Short pins 1-2 on both JPX3 and JP18.
To use the SPI BIOS on the carrier board:
f
Short pins 2-3 on JPX3 and pins 1-2 on JP18 .
Open the SPI BIOS socket and insert the
secondary BIOS flash chip.