Remote DFU invalid CRC error in nRF ToolBox

[Nilesh Bhavsar]

Hi,

I am using nRFToolBox into my smart phone of v4.4.2(kitkat).

I am trying to update my program using OTA through my phone.

But when i am trying to send dfu_test_app_hrm_s130.zip file then getting error of "Remote DFU invalid CRC error".

Also i don't know how to generate .dat file from hexor bin file.

Also if i generate this hex file from ARMmbed then what additional changes required?

[Hung Bui]

@Nilesh: Which SDK version are you testing with ? Please follow the documentation provided in that SDK version.

Hex file from ARMmbed can be considered the same as normal hex. But make sure it's not included the softdevice. Also if you use mbed bootloader you may want to follow their documentation.

[Nilesh Bhavsar]

Hi,

I have successfully transferred a den-mo example file dfu_test_app_hrm_s130.zip.

But now i am trying to burn my own code using OTA then then its returns me "REMOTE DFU DATA SIZE EXCEEDS LIMIT".

My .hex file is arount 300kb or more which is i generated from ARMmbed online compiler.

Can you suggest me how to compress this file.

[Hung Bui]

@Nilesh: You need to check if your mbed hex is already include the softdevice. If it is, you need to exclude the softdevice. After that, how did you generate your own .zip file ?

[Jackxl]

Maximum flash memory is 256kB. So, It is not possible to flash 300kB.

[Hung Bui]

What do you mean by 300kB ? are you answering the Nilesh's question?