Hi folks:
I am new to the forum and I have obtained a firmware dump of my SX540HS camera, but I am not an experienced coder. I have only dabbled a bit in languages like python, php, javascript and such. If anyone is interested in porting CHDK to this model and needs a firmware dump, please post here and I will see if I can get that to you.
What firmware version was it? You can search the dump for a string starting with "GM1." to find it.
A dump of SX540 100d was previously posted in
https://chdk.setepontos.com/index.php?topic=14207.0If yours was a different version, uploading the dump would help ensure that version gets supported if a port is eventually done. If yours is 100d, there's no need.
As I said in the other thread, ports are generally only done when someone with the development skills has the camera. If you want to try it yourself, this should be a relatively straightforward port, but a some familiarity with reverse engineering, C and assembler is definitely helpful.