IRC log for #edev on 20070510

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15:17.52*** topic/#edev is a channel for the discussion of hacking small consumer electronic devices, mostly ARM based
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17:14.03prpplagueCosmicPenguin: is englewood anywhere near you?
17:14.10CosmicPenguinits in denver
17:14.14CosmicPenguinabout an hour south of me
17:14.18prpplagueahh
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20:37.00CroftonCosmicPenguin, I need write a loader for a TI davinci processor, so I can avoid dealing with widders
20:38.03CosmicPenguinmy puppy used to be a widder, but he grew out of it
20:40.07prpplagueCrofton: widders?
20:40.44prpplagueCrofton: i assume you mean a bootloader?
20:41.02Croftonsort of
20:41.27Croftonthere is a mode where theCPU says boot me, so you can load a stage 1 loader int TCM
20:41.35prpplagueahh
20:41.47Croftonthen that runs and you can setup hw so you can write to flash for example
20:42.00Croftonthen reset dip switches and boot from flash
20:42.16prpplagueCrofton: might i suggest using apex as a base, you can compile it pretty small for running inside TCM
20:42.24prpplagueCrofton: how much have you got? 16k ?
20:42.25Croftonwhat is apex?
20:42.32Croftonsomething like that
20:42.51Croftonfirst I need to avoid using windows on the pc end of the cable
20:43.01prpplaguehttp://wiki.buici.com/wiki/Apex_Bootloader
20:43.18prpplagueits small and portable
20:43.23prpplaguewe use it with our handhelds
20:43.58prpplagueCrofton: you could easily add support for davinci
20:44.30Croftondoes it know about nand?
20:44.33prpplagueyea
20:44.44prpplagueCrofton: has support for both fat and ext2 fs
20:44.56Croftonfirst I need to get code in to cpu
20:44.59Croftonjffs2?
20:45.14prpplagueCrofton: seems like it supports jffs2 as well
20:45.46prpplagueCrofton: what method are you using to communcate for the "bootme" mode? rs-232?
20:46.13prpplagueCrofton: just curious
20:46.25Croftonyeah
20:46.51prpplagueCrofton: hmm, is the protocol for the upload documented?
20:47.18prpplagueCrofton: i.e. is it like CL arms?
20:47.24CroftonCL?
20:47.40prpplaguecirrus logic cpus
20:47.43Crofton~google spraai0
20:49.06prpplagueCrofton: checking out the pdf now
20:51.51prpplagueCrofton: yea, what you could do is just add a makefile option to generate the uploadable file and just use minicom or hypterm to xmit the file
20:52.46prpplagueCrofton: looks pretty straight forward and well documented
20:53.10Croftonyeah, that is why I think I have half a chance of making it work ....
20:53.15CroftonI am hoping someone already did this ....
20:54.04prpplaguehehe this pdf i'm looking at has most of the details on doing it under linux
20:54.25prpplaguehttp://focus.ti.com/dsp/docs/dspsupporttechdocsc.tsp?abstractName=spraai0&sectionId=3&tabId=409
20:54.32prpplagueCrofton: that what you are using?
20:55.00Croftonyeah
20:55.27prpplagueprobably take a little work to get done, but should be cookie cutter stuff
20:55.44prpplagueCrofton: i'd look at using apex for your UBL
20:55.56CroftonI bookmarked it
20:56.06prpplagueokie crokie
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