This use case demonstrates a scenario for an application that does not use any boot mode select pins and always has the device boot to Flash.
- Program the BOOTPIN_CONFIG location in OTP as follows:
- Set BOOTPIN_CONFIG.BMSP0 to 0xFF
- Set BOOTPIN_CONFIG.BMSP1 to 0xFF
- Set BOOTPIN_CONFIG.BMSP2 to 0xFF
- Set BOOTPIN_CONFIG.KEY to 0x5A for boot ROM to treat these register bits as valid and use the custom boot table.
- Program the BOOTDEF location options for the device. This essentially sets up a device-specific boot mode table. Refer to Section 4.7.7 for valid BOOTDEF values to set in the table.
- Set BOOTDEF.BOOTDEF0 to 0x03 for booting to Flash (entry address option 0). This sets Flash boot to boot table index 0.
- Refer to Section 4.7.2 for the available Flash entry points.
Table 4-7 Zero Boot Pin Boot Table ResultBoot Mode Table Number | Boot Mode |
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0 | Flash Boot (0x03) |