Walkera DEVO Tx Hacking - Page 4 - RC Groups
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Mar 12, 2012, 10:32 PM
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Hellraser's Avatar
Quote:
Originally Posted by rcH4x0r
Edit: It looks like both DAC pins are in use for SPI (PA4 & PA5) and I can't see any refs to the DAC base address in the code. I wonder where the catchy tunes are coming from?
If you ever find where the tunes are coming from - I would be delighted with a mod to shut them all up

Regards David
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Mar 12, 2012, 10:36 PM
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The latest Walkera firmware update makes the tunes a much more bearable single beep as well as gives you two throttle activated switches. I'm still subscribed and interested in a Devo8S that I can fly anything with though.
Mar 12, 2012, 10:48 PM
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OnceAFly's Avatar
Hope to see some changes on devo12 theme and stupid tone!! By the way what library editor you guys using?
Mar 12, 2012, 10:53 PM
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NorCalMatCat's Avatar
I am looking over the datasheet for the ARM chip to see if I can help figure out the hardware aspect... You can find it here: http://www.st.com/internet/com/TECHN...CD00191185.pdf

The chip is an xC class, this PDF has complete hardware specs.
Mar 12, 2012, 11:03 PM
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NorCalMatCat's Avatar
CPU Pin Out
Mar 12, 2012, 11:07 PM
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Atomic Skull's Avatar
New firmware removes the shutdown tune. Now it just goes "BEEP! (shutdown)"
Mar 13, 2012, 07:51 AM
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FDR_'s Avatar
@rcH4x0r:
Something is fishy with the resource tables! While in the devo8 v0.0.4 lib the addresses are continuous and the last one point to the end, the others (f.e. v0.0.5) have wrong closing address, or in case of the devo12 there a holes in the table.

Do you have an algorithm to detect them right, or you just eyeballed all for the right addresses?
Mar 13, 2012, 08:33 AM
Registered User
Quote:
Originally Posted by OnceAFly
Hope to see some changes on devo12 theme and stupid tone!! By the way what library editor you guys using?
I have updated my first post with a link to v0.2, it now handles strings & bitmaps.

@FDR_, the resources are a bit of a mess if you ask me, for strings I just eyeballed them. Devo6 V0.3 bmps also got broken, the DEVO-12 is a bit different again :s
Mar 13, 2012, 09:04 AM
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FDR_'s Avatar
Quote:
Originally Posted by rcH4x0r
@FDR_, the resources are a bit of a mess if you ask me, for strings I just eyeballed them. Devo6 V0.3 bmps also got broken, the DEVO-12 is a bit different again :s
I can handle the holes: I know where the first entry is (0x30 except for DEVO 10 and 12 where it is 0x40), then I read every 4 bytes which is not 0 into a table until the address of the first entry, then sort the table.
Worst are the wrong end addresses, because they split the last resource in two...
Mar 13, 2012, 09:31 AM
Registered User
Would it be an idea to inform people not to get newest firmware till you've got it sorted?
Just on the off chance Walkera do something with code that " stops " what your doing or least hinders it.
Mar 13, 2012, 12:31 PM
Registered User

DEVO 6, 8, 12 RF module PIC


RF output module, DEVO 6, 8, 12.
Mar 13, 2012, 01:01 PM
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NorCalMatCat's Avatar
Quote:
Originally Posted by rcH4x0r
I have updated my first post with a link to v0.2, it now handles strings & bitmaps.

@FDR_, the resources are a bit of a mess if you ask me, for strings I just eyeballed them. Devo6 V0.3 bmps also got broken, the DEVO-12 is a bit different again :s
Getting time out issues trying to get to your site.
Mar 13, 2012, 01:35 PM
Registered User
I had hoped a solution would be found to use Walkera protocols with the 9x but now I like my Devo 8S so much that I'd like for it to be able to communicate with Frsky receivers/ telemetry. Since the Walkera receivers are so limited with no satellites or micros.
Mar 13, 2012, 02:27 PM
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FDR_'s Avatar
Quote:
Originally Posted by rcH4x0r
I have updated my first post with a link to v0.2, it now handles strings & bitmaps....
Something went wrong with the strings!
The tool replaces the special characters like "!", "%" or "" with some mess...
Mar 13, 2012, 02:29 PM
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NorCalMatCat's Avatar
It would seem straight black is the transparency bit?


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