CC2640R2F: CC2340R5 back door mode?

Aichi Chen

Expert 1550 points

Part Number: CC2640R2F
Other Parts Discussed in Thread: CC2340R5,

Do we support back door mode on cc2340R5?

Like we have in CC2640R2F, use gpio to trigger bootloader in boot up...

+1 Jan over 1 year ago

Hi.

The CC2340R5 does support a backdoor pin to trigger the bootloader. By default, this pin is set to DIO21.

Best Regards,

Jan

0 Aichi Chen over 1 year ago in reply to Jan

Expert 1550 points

One mre thing, which UART pin support this? all of UART rx/tx pin?? like in cc2640R2F, only dio0/1 support it.

0 Jan over 1 year ago in reply to Aichi Chen

Hi,

The bootloader UART and SPI pins are fixed and cannot be changed. I will need to look in to which pins these map to and get back to you.

Best Regards,

Jan

+1 Jan over 1 year ago in reply to Jan

Hi,

The pins used will depend on the PG version of your IC as well as the package. For a PG2.0 LaunchPad, the RX and TX pins will be 22 and 20.

Best Regards,

Jan

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