CC2650: Jump to bootloader or erase/write ccfg data?

vvzvlad

Part Number: CC2650

We have a device that needs to be switched to serial bootloader mode from the device program (without pressing buttons).

1) Can I go to the bootloader by the jump command to the address? (LDR R0, ORR R0, BX R0)

2) If you can not switch to a bootloader in this way, then, as I know, it is possible to set the word in the CCFG area at CCFG_O_IMAGE_VALID_CONF to a value other than 0x00000000, which means that the firmware will not be validated, and will start the bootloader after restart.
How can I change the value of the CCFG scope?

HWREG(CCFG_BASE + CCFG_O_IMAGE_VALID_CONF) = 0x1; does not work
ti_lib_flash_sector_erase(0x50000000); also does not work.

over 8 years ago

0 Suyash Jain over 8 years ago

TI__Genius 10650 points

Are you using the ROM boorloader? to enter the rom bootlloader (please refer to the document www.ti.com/.../swra466a.pdf for more details) you would need to reset the device, you can also use watchdog timer to create device reset.

0 vvzvlad over 8 years ago

Prodigy 100 points

I found a solution. It is necessary to erase not the CCFG area that is used to work with it, but the area in which the CCFG is located in flash memory:
ti_lib_flash_sector_erase (0x0001F000);
ti_lib_sys_ctrl_system_reset ();

After these commands, the controller will reboot and go into bootloader mode.

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CC2650: Jump to bootloader or erase/write ccfg data?