Page History
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The boot modes are controlled by the Pins 'BOOT1' and 'BOOT2' on the board to board (B2B) connector. Pins routed through the CPLD by default firmware with pullup, if not connected on B2B.
BOOTMODE2 (M3) | BOOTMODE1 (M2 | BOOTMODE1 (M2) | BOOTMODE2 (M0) | M1 | M3M0 | Boot mode |
|---|---|---|---|---|---|---|
| LOW | LOW | LOW | LOW | JTAG | ||
| LOW | HIGH | LOW | LOW | SPI (also eMMC as secondary boot)illegal | ||
| HIGH | LOW | LOW | LOW | illegalSPI (eMMC as secondary boot possible) | ||
| HIGH | HIGH | LOW | LOW | SD Card |
JTAG
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| date | revision | authors | description |
|---|---|---|---|
| 2017-03-24 | v11 | John Hartfiel | Correction Boot Mode Settings |
| 2016-06-14 | v10 | initial release |
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