Difference between revisions of "ETRA SOM/ETRA Evaluation Kit/Getting started/Boot Configurations"
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{| class="wikitable" | {| class="wikitable" | ||
! latexfontsize="scriptsize" | BOOT_MODE[2:0] | ! latexfontsize="scriptsize" | BOOT_MODE[2:0] | ||
| + | ! latexfontsize="scriptsize" | S1[3..1] | ||
! latexfontsize="scriptsize" | Boot peripheral | ! latexfontsize="scriptsize" | Boot peripheral | ||
! latexfontsize="scriptsize" | Notes | ! latexfontsize="scriptsize" | Notes | ||
|- | |- | ||
| − | | 000|| USB || boot from USB OTG | + | | 000|| OFF-OFF-OFF || USB || boot from USB OTG |
|- | |- | ||
| − | | 001|| NOR || boot from NOR flash on Quad-SPI | + | | 001|| OFF-OFF-ON || NOR || boot from NOR flash on Quad-SPI |
|- | |- | ||
| − | | 010|| eMMC || boot from eMMC on SDMMC2 | + | | 010|| OFF-ON-OFF || eMMC || boot from eMMC on SDMMC2 |
|- | |- | ||
| − | | 101|| SD || '''Default''' boot from SD card on SDMMC1 | + | | 101|| ON-OFF-ON || SD || '''Default''' boot from SD card on SDMMC1 |
|- | |- | ||
| − | | 111|| NAND || boot from NAND flash on Quad-SPI | + | | 111|| ON-ON-ON || NAND || boot from NAND flash on Quad-SPI |
|- | |- | ||
|} | |} | ||
Revision as of 12:41, 30 August 2023
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| History | |||
|---|---|---|---|
| ID# | Issue Date | Notes | |
| 30/08/2023 | First release | ||
Boot Configurations[edit | edit source]
ETRA Evaluation Board is built upon STM32MP1 processor.
The following sections detail boot configuration options, which differ depending on the SoM.
Available options[edit | edit source]
Boot modes can be selected by S1 DIP-switch which acts directly on BOOT_MODE[2..0] configuration pins.
S1 switches are connected to ETRA BOOT_MODE[2:0] pins allowing different boot modes.
where S1 switches are mapped as the following table:
| BOOT_MODE | S1 | Note |
|---|---|---|
| BOOT_MODE0 | S1.1 | |
| BOOT_MODE1 | S1.2 | |
| BOOT_MODE2 | S1.3 | |
| - | S1.4 | USB OTG settings |
DIP settings[edit | edit source]
| BOOT_MODE[2:0] | S1[3..1] | Boot peripheral | Notes |
|---|---|---|---|
| 000 | OFF-OFF-OFF | USB | boot from USB OTG |
| 001 | OFF-OFF-ON | NOR | boot from NOR flash on Quad-SPI |
| 010 | OFF-ON-OFF | eMMC | boot from eMMC on SDMMC2 |
| 101 | ON-OFF-ON | SD | Default boot from SD card on SDMMC1 |
| 111 | ON-ON-ON | NAND | boot from NAND flash on Quad-SPI |
