Part Number: TIDA-00489
Tool/software: Code Composer Studio
we have the TIDA-00489 design, though we have removed some stuff including J3, which was somehow related to the backdoor mode? As a starting point for software development we used the sensor software from 15.4 Stack. I recently stumbled over the backdoor pre-defined symbols and SET_CCFG_BL_CONFIG_BL_ENABLE=0xC5 was enbaled. I changed it to 0x00 to disable it. So, far I havent noticed any issues.
So my question is, if this could potentially lead to any strange behavior during flashing of the sensors in the production line?
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In reply to JohnFullilove:
The main purpose of the CC13x2/CC26x2 ROM bootloader is to support functionality for programming a flash image into the device flash over either SPI or UART.
The built-in bootloader start running after a power-on reset if there is no valid application image in flash
Alternatively, the bootloader start if the so-called bootloader backdoor is enabled and the associated pin that opens the backdoor is set to the correct logic level.
Disabling the bootloader backdoor will remove the possibility to force entry of the ROM boot loader even if a valid image is present in flash
See https://www.ti.com/lit/swra466 for more details.
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