Changes

S1 is a 2-way dip switch for the boot mode selection (PIN: BOOT_MODE_SEL). The following table reports the available configurations for the two Axel Lite models. For further details, please refer to [[Boot_options_(AxelLite) | Axel Lite boot optionsthis page]], which describes the available boot modes thoroughly.

===Revision 0===This adapter provides a switch that allows selecting the boot device according to the following table. The available boot options differ depending on the Axel Lite type. In this regard, there are basically two types: those that are equipped with both NOR and NAND flash, and those that are equipped with NAND flash only.{| class="wikitable" |-+!Switch rowspan="2" |Axel Lite type!Position!Function!Notes|-colspan="2" |S1.1 || N.C. || - || -2position

|S1.2 || OFF || BOOT_MODE_SEL = 1<br>Boot from NOR and NAND flash|USB| -SPI

===Revision A===Revision A does not integrate any switch. To select the boot source, please use the S9 switch provided by the [[TBD|AxelEVB-Lite rev. A]] board instead. The available boot options—selectable with the S9.2 switch—differ depending on the Axel Lite type. In this regard, there are basically two types: those that are equipped with both NOR and NAND flash, and those that are equipped with NAND flash only. {| class="wikitable" |+! rowspan="2" |Axel Lite type! colspan="2" |S9.2position

!Switch on!Position!Function!Notesoff

|S1.1 || N.C. || - || -|-|S1.2 || ON || BOOT_MODE_SEL = 0<br>Boot from SD || -NOR and NAND flash|-TBD|S1.2 || OFF || BOOT_MODE_SEL = 1<br>Boot from SPI NOR || -TBD