James wrote: >> I don't have links to pre-built images and never used gentoo embedded. >> Here we use a GCC cross-toolchain, build the kernel from scratch and the >> rootfs with buildroot on the host, copy to an SDCard and boot our >> embedded system from there. > > OK, any additional info on setting up your cross-toolchain ?
Sorry, that was done by a different group, I don't know the details. The gcc prefix is arm-v7-linux-ucliceabi- so I gather we are using uclib. I the past I used Codesourcery for ARM, it was quite easy to set up. >> The bootloader is pre-programmed through >> JTAG to embedded flash. Application debugging is done with gdbserver >> running on the target communicating through ethernet connection to the host. > > Do you have a working JTAG? If so any details of the components, software > and configs would be keenly appreciated. I think we use JTAG to download a small code into the SoC embedded RAM that programs the flash but again it's something I receive already programmed. You obviously could use the JTAG for application debugging but I find gdb/gdbserver much more convenient. I know it's also possible to access the JTAG from the GDB with openocd but I've never used it. raffaele
