only update bootloader

[james]

Hi,I'am try to update the bootloader. But it stop at 1%. I don't what I miss.

james_boot.hex

james_bootloader.zip

Log 2016-09-06 11_36_54.txt

Dfu_bootloader_via_hex.txt

Dfu_application_via_zip.txt

james_bootloader_test.hex

[james]

Hi Hung,I had followed the guide.But I wonder why the size of zip will increase ,when I increase the size of bootloader.

[Hung Bui]

The zip contains the bootloader, I think it's pretty straight forward that you increase the size of the hex file of the bootloader, you increase the .zip file's size.

[james]

Hi Hung, I had only modified the size configuration, and I hadn't modified the content of hex.

[Hung Bui]

@James: The problem is that the binary doesn't have address. So if you have some code at address 0x3C000 and then some code at address 0x3FC00 (the bootloader setting) then the binary will be from 0x3C000 to 0x3FCFF. If you change the start address to 0x3A000 for example the binary file will be increased from 0x3A000 to 0x3FCFF. It's doesn't matter if you have some blank pages in between, they will be 0xFFFFFF in the binary file.

[james]

Hi Hung,the size of zip alway exceeds the size limit of dfu ,no matter how much size I increase. I don't know how to do with it.