lwc / compare

How to have fun with the GAPuino on Linux

In general, follow this README: https://github.com/GreenWaves-Technologies/gap_sdk/blob/master/README.md

PLUS

Fix the -Werror flag to make openocd compile

Comment this line in gap_sdk/tools/gap8-openocd

GCC_WARNINGS="${GCC_WARNINGS} -Werror"

Fix libmpfr version bug

sudo ln -s /usr/lib/libmpfr.so.6 /usr/lib/libmpfr.so.4

Fix bug in load_jtag_hyper function

• Grep for load_jtag_hyper in the source directory of the SDK
• Make sure all function definitions have the signature load_jtag_hyper(self)

Enable hyperflash boot

• This is supposed to be a one-time operation
• Run the following commands source ~/gap_sdk/configs/gapuino_v2.sh openocd -f interface/ftdi/gapuino_ftdi.cfg -f target/gap8revb.tcl -f ./tcl/jtag_boot.tcl -f ./tcl/fuser.tcl
• Open a second terminal and continue with source ~/gap_sdk/configs/gapuino_v2.sh telnet localhost 4444
• In the openocd terminal run (adapt path to directory if necessary) fuse_hyperflash_boot /home/$USER/gap_sdk/tools/gap8-openocd-tools
• Unplug the gapuino, it SHOULD now boot from hyperflash
• Add PLPBRIDGE_FLAGS += -f -hyper to your Makefile
• I could only boot from flash, when I hit make and the openocd command after every flash