CC2340R5: Is it possible to implement OAD and serial bootloader together

Hi Akash, 

Thanks for reaching out. 

Can you share what you've done in your project when you are using both OAD and serial bootloader? 

Regards

Hi Ivan,

I have taken the basic BLE OAD on chip example from resource explorer, added a profile for UART and did this sysconfig settings for serial bootloader

I am keeping the DIO18 pin high before starting the micro So it will stick in serial boot mode, but it's jump to application code.

 the same thing I have done with data stream and it's working totally fine 

Hi Akash, 

Did you get the chance to read the READme file for the basic_ble OAD on chip project? There are a couple steps you need to apply when flashing an OAD project. There are also some information our BLE user's guide.

Regards,

Ivan

Hi Ivan,

thank you for your response

but I already read them. I want to know is it possible to implement serial bootloader and OAD on chip in a single microcontroller

Hi Akash, 

Yes its possible and supported. Using the BLE OAD project and you would need to add the logic for the serial bootloader. Unfortunately we do not currently have an example for this. 

Regards, 

Ivan 

Thank you Ivan,

can you please guide me to how can I add that logic

Hi Akash, 

If you are using custom SBL, you would need to:

1. have that bootloader loaded into flash
2. specify in CCFG: that custom bootloader should be used; the vector table of the bootloader (usually start address of its placement in flash)

For the device itself has a ROM serial bootloader (SPI or UART), so as long as this is enabled within the CCFG. The command ROM SBL supports are detailed in Technical Reference Manual (chapter 8).

Hope this helps. 

Regards

Ivan

Hi Ivan 

May you please explain how to use TI provided SBL and TI provided OAD . User can select either SBL or OAD firmware update but hex file should be same for both features. please share CCFG setting and method in stepwise procedure .It will help a lot to all BLE developers.

Hi,

The OAD should be covered within the SDK docs and also within the example README.

The SBL is covered in the Technical Reference Manual link above.

These two may be considered separate topics. Both are separate ways to do FW update.

Regards

Ivan

Can We implement these two features (serial bootloader and OAD) together in a single micro having OAD on chip example and then can we perform the one FW update method at a time .