Data Sheet

System power

The Coral Dev Board must be powered by 2-3A at 5V DC using the USB Type-C power port (see figure 4).

Caution: Do not attempt to power the board by connecting it to your computer.

The SoM has one primary PMIC (BD71837MWV) from Rohm for the iMX8M SoC complex, LPDDR4, eMMC, and Wi-

Fi/Bluetooth. It integrates 8 DC-DC buck regulators and 7 LDOs to provide all power rails required by iMX8M SoC and

commonly used peripherals.

Boot mode

The baseboard includes 4 switches (indicated in figure 7 to control the boot mode. By default, they are set to boot from

eMMC. You can change the boot mode as follows.

Figure 7. Boot mode switches, set to boot from eMMC

Version 1.6 (July 2020)

Table 5. Boot mode switches

Boot mode Switch 1 Switch 2 Switch 3 Switch 4

Serial download Off On [Don't care] [Don't care]

eMMC On Off Off Off

SD card On Off On On