[mc1322x] OpenOCD custom proc

[Jon Smirl]

On Mon, Jun 7, 2010 at 1:22 PM, Jon Smirl <jonsmirl at gmail.com> wrote:
> On Mon, Jun 7, 2010 at 1:14 PM, Daniel Berenguer
> <dberenguer at usapiens.com> wrote:
>> Yes, that's an option... So in your daily job you just write the RAM
>> through serial? I may do this too I guess, to avoid useless flash
>
> That's what I do. I've never flashed my development boards from Mar.

Mar, I had the boards working at 921,600 baud.
in cpu/mc1322x/uart1.c

I changed this:
#define INC 3071 /* 921,600 */

and turned flow control on
reg32(UART1_CON) = 0x00001403; /* enable receive and transmit */

Is this all that is needed? I've forgotten exactly what I did. I had
to modify to loader script too.

Will the bootloader work at 921,600? It will autobaud to 921,600 but
does it have flow control enabled? Without flow control it overruns
the ft2232.


The idea is to reduce the latency when using the board in linux-serial
mode. Latency on 802.15.4 nets is more of a problem than throughput.


>
>> writes during development.
>>
>> Thanks Jon for this remark.
>>
>> Daniel.
>>
>>
>> On 7 June 2010 18:54, Jon Smirl <jonsmirl at gmail.com> wrote:
>>> On Mon, Jun 7, 2010 at 12:06 PM, Daniel Berenguer
>>> <dberenguer at usapiens.com> wrote:
>>>> Sorry guys to come back with basic issues...
>>>>
>>>> I'm trying to flash a binary into one of my EconoTags through a single
>>>> OpenOCD command as follows:
>>>>
>>>> openocd -f ../openocd.cfg -c "run blink-green_redbee-econotag.bin"
>>>>
>>>> but I'm getting this error:
>>>>
>>>> Runtime error, file "../openocd.cfg", line 80:
>>>> invalid command name "soft_reset_halt"
>>>
>>> Mar can explain the error...
>>>
>>> You don't have to flash the mc13224 chips. The chips have 96KB of RAM
>>> on them. Just send your code into RAM and run it. Only flash when your
>>> code is working and you want to unplug the econotag and take it
>>> somewhere else. Developing out of RAM is many times faster than
>>> flashing.
>>>
>>>
>>>>
>>>> Same thing with "load_image" if I comment the above command in openocd.cfg.
>>>>
>>>> I'm currently using Mar's cfg file with the latest OpeOCD version (0.4.0)
>>>>
>>>> On my old OpenOCD version (0.0), I used to halt/wait_halt instead of
>>>> soft_reset_halt. As for writing new images I used "flash write"
>>>> instead of load_image. The funny thing is that OpenOCD is accepting
>>>> both commands via telnet but not through the custom "run" proc.
>>>>
>>>> Any help is appreciated. Thanks!
>>>>
>>>> Daniel.
>>>>
>>>> _______________________________________________
>>>> mc1322x mailing list
>>>> mc1322x at devl.org
>>>> http://devl.org/cgi-bin/mailman/listinfo/mc1322x
>>>>
>>>
>>>
>>>
>>> --
>>> Jon Smirl
>>> jonsmirl at gmail.com
>>>
>>
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>>
>
>
>
> --
> Jon Smirl
> jonsmirl at gmail.com
>



-- 
Jon Smirl
jonsmirl at gmail.com