Flashing HP15CE with linux

[ebs]

I have successfully flashed the last firmware to HP-15C CE from Linux following the steps by Idnarn.

I used an old laptop with an old version of Debian about the same age (2014) as the bossa's fork with SAM4L support: https://sourceforge.net/p/bossa-fork/code/

The only issue I found compiling bossa is it's configured to use Clang compiler that I didn't have installed in my Linux*, so I used GCC and compiled just fine, for that I changed a line in Makefile:

original Makefile:

Code:

CXX=clang++

changed:

Code:

CXX=g++

I didn't use graphic interface, just bossac command line tool.

For the record, the Linux kernel driver necessary to get bossa working is cdc_acm to talk with the calculator USB controller.
Usually will be as a kernel module automatically loaded, but just in case it can be done manually:

Code:

modprobe cdc_acm

That will create the device file /dev/ttyACM0 when the calculator is connected to USB and the sequence ERASE+RESET done, bossa will detect this device automatically, if not you can force it with the -p option of bossac.

Thanks to Idnarn and all the people that contributed to this, specially Divasson for producing the new pogo cable.

* I think Clang is the default compiler in MacOS X but GCC in Linux, that said CLANG can be installed in Linux so the Makefile modification wouldn't be needed.