4.13.3.14. NXP i.MX6ULL EVK Evaluation Board

Compute module comes with:

• 512MiB of DDR3L SDRAM

• 256 MB Quad SPI Flash

4.13.3.15. Boot Configuration

The NXP i.MX6ULL EVK Evaluation Board has two switches responsible for configuring bootsource/boot mode:

• SW602 for selecting appropriate BOOT_MODE

• SW601 for selecting appropriate boot medium

In order to select internal boot set SW602 as follows:

+-----+
|     |
| O | | <--- on = high level
| | | |
| | O | <--- off = low level
|     |
| 1 2 |
+-----+

Bootsource is the QSPI:

+---------+
|         |
| | | | | |
| | | | | |  <---- QSPI
| O O O O |
|         |
| 1 2 3 4 |
+---------+

Bootsource is the MicroSD:

+---------+
|         |
| | | O | |
| | | | | |  <---- MicroSD
| O O | O |
|         |
| 1 2 3 4 |
+---------+

Serial boot SW602 setting needed for imx-usb-loader is as follows:

+-----+
|     |
| | O | <--- on = high level
| | | |
| O | | <--- off = low level
|     |
| 1 2 |
+-----+