CC2640R2F: Serial bootloader library porting Issue

Vinay Divakar

Part Number: CC2640R2F
Other Parts Discussed in Thread: CC2650, CC2640, CC2538

Hi,

I have currently ported the serial boot library VC++ example to Linux in C. I am having a couple of issues to getting it to work.

Issue 1: The flash size is returned as 131072 and for some reason, the file size (blinky_backdoor_select_btn2650.bin) read too is the same i.e. 131072, which is weird?

Issue2: Write flash fails giving an error that the address is not in device FLASH nor RAM. This happens after 100%, suddenly throwing up some long weird %.

Also, the following is shown in the below terminal image.

I have re-looked into my code again and again but did not come across any discrepancies. Would be of great help if someone could take some time to review the code and help me get this Linux version of the library out. Also, I noticed that the SBL example was written mainly for cc2650 and cc2538, Is there any cc2640 specific changes I am missing?

Cheers

Vinay

over 7 years ago

0 Vinay Divakar over 7 years ago

Expert 1280 points

Hi,

Some progress on the SBL lib. After making the below change, the flash completes as shown in below screenshot.

For the above, I made the following change in writeFlashRange( ) as shown below.

/* For each transfer */
    for(unsigned long i = 0; i < 1; i++) // Changed i < 2 to i < 1
    {

    }

Now, I am getting a CRC mismatch error. Will continue looking into it and in the meantime, hoping to get some support to accelerate the process.

Cheers

Vinay

0 Toby over 7 years ago in reply to Vinay Divakar

TI__Mastermind 35070 points

Hi,

Please see this similar thread: https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/617647?CC2640R2F-sbl-code-on-Linux

Regards,
Toby

0 Vinay Divakar over 7 years ago in reply to Toby

Expert 1280 points

Hi Toby,

All good and thanks for sharing this.

Cheers

Vinay

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CC2640R2F: Serial bootloader library porting Issue