How to write LM3S101 configuration file ?

Development Boards MicroMod
1

I use openocd-v188, ARM is LM3S101, but I don’t know to write LM3S101 configuration file ?

help !

thanks !

2

Refer the link given below… this PDF explains how to write configuration files

for any processor using Open OCD

http://www.fh-augsburg.de/~hhoegl/proj/ … ickref.pdf

(download the updated version, will save some time)

Regards,

Mihir

3

For the LM3S101 you should use for target and flash:

#target

target cortex_m3 little reset_halt 0

working_area 0 0x20000000 0x600 nobackup

#flash configuration

flash bank stellaris 0 0 0 0 0

Regards,

Magnus

4

mlu:
For the LM3S101 you should use for target and flash:

#target

target cortex_m3 little reset_halt 0

working_area 0 0x20000000 0x600 nobackup

#flash configuration

flash bank stellaris 0 0 0 0 0

Regards,

Magnus

I could use some hints along these lines for the LM3S8xx parts. They have 64KB flash and 8KB RAM.

So I would guess the target line would be the same, but I don’t know about the rest.

5

The LM3S8xx parts should work with the same settings as LM3S101.

Flash size is autodetected, and RAM size is not a problem.

For the eval boards with integrated FT2232 JTAG interface ( evb_lm3s811) the settings should be something like:

interface ft2232

jtag_speed 0

ft2232_layout evb_lm3s811

ft2232_vid_pid 0x0403 0xBCD9

Regards,

Magnus

6

I’m actually trying to get it to go using an Amontec JTAGKey through the direct JTAG port instead of the provided SWD. So I have OpenOCD built to use the FTDI lib to get to the JTAGKey which in turn will be plugged into the EVB.

I’m on Intel Mac / OSX, starting from the work here:

viewtopic.php?p=32347&sid=e14b38a536e98 … c7f7f8865b

Edit: OK, some progress. Using this config file I seem to be able to get the JTAGkey to halt/resume the CPU on the Stellaris EVB, so this is a good sign.

#daemon configuration

telnet_port 4444

gdb_port 3333

#interface

interface ft2232

ft2232_device_desc “Amontec JTAGkey”

ft2232_layout jtagkey

ft2232_vid_pid 0x0403 0xCFF8

jtag_speed 10

jtag_nsrst_delay 500

jtag_ntrst_delay 500

#LM3S811 Evaluation Board has only srst

reset_config srst_only separate

#jtag scan chain

#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)

jtag_device 4 0x1 0xf 0xe

#target configuration

daemon_startup reset

#target

target cortex_m3 little run_and_halt 0

4k working area at base of ram

working_area 0 0x20000800 0x1200 nobackup

all ram

#working_area 0 0x20000000 0x2000 nobackup

#target_script 0 reset evb_lm3s811_flash.script

#flash configuration

flash bank stellaris 0 0 0 0 0

… I went a few rounds trying to get the onboard USB/SWD interface to play ball without success. Jim Lynch’s tutorial saved the day as it had a complete config for OpenOCD+JTAGkey that I cribbed from.

Now let’s see if we can erase and flash this chip…

Edit: OK, I can erase it and flash it successfully, however I can’t seem to get it to run while the JTAGkey is in the picture. If I power down, unhook the JTAGkey, and power up, it runs the code I loaded just fine. But if I try to do a “reset run” through the telnet interface, I usually get this right away and no hint of output:

reset run

Target 0 halted

target halted in Thumb state due to debug request, current mode: Thread

xPSR: 0x61000000 pc: 0x20000004