I'm using a Raspberry Pi Pico for a personal project (written in the C language) and my problem is that my Raspberry Pi Pico is unreachable once it's installed, so I have to take it out every time I want to update my software which takes forever.
My Raspberry Pi Pico is linked to a Raspberry Pi CM3 with a dedicated protocol (that's not USB). I cannot add another wire for another protocol neither (USB or SWD).
My CM3 is connected in Wi-Fi, so far I can remotely send my update firmware to the Raspberry Pi Pico, doing that I have my firmware stocked in a pointer in the Raspberry Pi Pico (the firmware can be the .hex, .bin or .uf2 file).
How can I use this pointer to reprogram my Raspberry Pi Pico?
On the Raspberry Pi Pico SDK kit, I have found out the functions flash_range_erase() and flash_range_program, but it seems like it’s only to edit smalls part of memory and not the program itself. I know that I have to stop interrupts in order to do that and to stop my second core to avoid problems.
I also found the function reset_usb_boot() that allows me to reboot on boot USB mode without having to press the Bootsel button, which is really convenient. The problem I have is that once in this mode, I cannot use my pointer containing the firmware, because I just_ rebooted my Raspberry Pi Pico, and I cannot send the firmware that the Raspberry Pi Pico is waiting, because I don't have any USB connection to it.
I would like to know if there is a way of programmatically reflashing the Raspberry Pi Pico.
Following HamidReza's advice, I've posted my question on the Raspberry Pi Stack Exchange site and got an answer that worked!
I'm now closing this question.