=========================================================================== ####COPYRIGHTBEGIN#### ------------------------------------------- The contents of this file are subject to the Cygnus eCos Public License Version 1.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://sourceware.cygnus.com/ecos Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. The Original Code is eCos - Embedded Cygnus Operating System, released September 30, 1998. The Initial Developer of the Original Code is Cygnus. Portions created by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. ------------------------------------------- ####COPYRIGHTEND#### =========================================================================== 27 Oct 1999 How to build and install the GDB module on the PID Make GDB module ~~~~~~~~~~~~~~~ 1. Configure a minimal eCos system with all packages except 'infra' disabled. 2. Edit to enable GDB: #define CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS #undef CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT #undef CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT 3. make;make -C hal/arm/pid//misc Alternatively run hal/arm/pid//misc/STUBS_config. GDB image is in the file hal/arm/pid//misc/gdb_module.img Make FLASH tool ~~~~~~~~~~~~~~~ 1. Configure a separate eCos system with all packages enabled. 2. Change diag chanel to port B (in file pkgconf/hal_arm_pid.h): #define CYGHWR_HAL_ARM_PID_DIAG_PORT 1 2. make misc FLASH tool is in the file hal/arm/pid//misc/prog_flash Prepare board for eCos ~~~~~~~~~~~~~~~~~~~~~~ 1. Set jumper 7-8 on LK6 [using the Angle code in the 16 bit EPROM] 2. Set jumper 5-6 on LK6 [select 8bit ROM mode] 3. Set jumper LK18 [ROM remap - this is also required for eCos] 4. Set S1 to 0-0-1-1 [20MHz operation] Program FLASH ~~~~~~~~~~~~~ 1. Download the image onto the PID board: arm-elf-gdb -nw hal/arm/pid//misc/gdb_module.img (gdb) target rdi s= (gdb) load [...] (gdb) quit This will download the stubs onto the board at 0x60000..0x64000 2. Now download the FLASH programmer tool arm-elf-gdb -nw hal/arm/pid//misc/prog_flash (gdb) target rdi s= (gdb) load [...] (gdb) cont 3. The FLASH tool will output some text on the board serial port B at 38400 baud: ARM eCos FLASH here! manuf: 8, device: 40 Error: Wrong Manufaturer: 08 ... Please change FLASH jumper 4. This text is repeated until you remove the jumper 7-8 on LK6. Then the output should be: manuf: 1F, device: A4 AT29C040A recognised About to program FLASH using data at 60000..64000 *** Press RESET now to abort! 5. You have about 10 seconds to abort the operation by pressing reset. After this timeout, the FLASH programming happens: ...Programming FLASH All done! 6. Quit/kill the GDB process which will hang. 7. Next time you reset the board, the stub will be in control, communicating on serial port A at 38400 baud. See documentation for further details on how to connect with GDB. Big-Endian operation ~~~~~~~~~~~~~~~~~~~~ 1) If the board is to be used in big-endian mode, the stub should be configured for platform 'pidbe' instead of 'pid'. 'pidbe' can also be used as a second argument to the STUBS_config script. 2a) If a big-endian rom controller is installed on the board, the programming of a new stub into flash is covered in the ARM PID manual. 2b) If a big-endian rom controller is _not_ used, this is what you must do: 1) Follow the above instructions (including jumper settings) , but instead of using the 'prog_flash' FLASH tool, use the 'prog_flash_BE_image_LE_system' FLASH tool. 2) Instead of resetting the board after the FLASH has been programmed, switch off the power and enable jumper LK4. If you have to re-program the FLASH later, you can follow the steps above again, but also disable jumper LK4 when changing the other jumpers.