Compiler/CC2540: Upgrade and control of CC2540 using USB under Linux

dashi wang

Part Number: CC2540

Tool/software: TI C/C++ Compiler

After using UBL for the first time, successfully upgrade HostTestReleaseCC2540USB-UBL.bin. 
When I want to upgrade again. I follow the way shown in the TI_BLE_Sample_Applications_Guide.pdf help documentation (picture). 
Pressing the button while powering up, UBL only appears for one second. I didn't have time to upgrade it, just run HostTestReleaseCC2540USB-UBL.bin. 
I want to extend this UBL stay time, but I have not found a valid modification method in the UBL source code provided by BLE-CC254x-1.4.2.2.

over 6 years ago

0 J Lindh over 6 years ago

TI__Guru 57865 points

Hi Dashi,
Assigning an expert to look into the described case.

0 dashi wang over 6 years ago in reply to J Lindh

Prodigy 50 points

hey:

Is there a result for this question?

Regards

0 Eirik V over 6 years ago in reply to dashi wang

TI__Guru 56590 points

Hello Dashi,

Have you tried this in windows?

You were able to load the first image over USB as mass storage without any problem?

in ubl_exec.c -> ublExec() the stDelay variable seems to contain the delay before jumping to a valid RC image. You can try to modify this part to extend the delay. Or simply experiment by uncommenting the following block

//        if (stDelta > stDelay)
//        {
//          break;
//        }

Bluetooth®︎

Bluetooth forum

Compiler/CC2540: Upgrade and control of CC2540 using USB under Linux