e3-hacking

e3-hacking@earth.li

395 discussions

RE: [E3-hacking] sound?!
by Cliff Lawson 03 Mar '06

03 Mar '06

Jonathan, Spot on as always. The two ways to make noise are to either play one of 48 fixed "notes" from the PWT or to stream PCM to the modem codec (after switching it to take control rather than allowing the modem to control it) which is the way we play polyphonic ringtones, Spectrum 128 sound and audio on MPEG adverts. But to do this requires code running on the C55x DSP as only it mcbsp2 (think it's 2, maybe 1 though!) is connected to the codec chip and that mcbsp is a DSP "private" device and can't be programmed from the ARM side of the OMAP. For Linux use I'm therefore gonna suggest that you are probably limited to PWT and your choice of the 12 notes in each of four octaves. Cliff > -----Original Message----- > From: Jonathan McDowell [mailto:noodles@earth.li] > > The only other option I can see for talking to the handset/speaker/mic > is via the modem codec. This e-mail and any attachments are confidential and intended exclusively for the addressee. If you are not the intended recipient please delete it from your system and notify the sender immediately. This message is attributed to the sender and may not necessarily reflect the views of Amstrad Plc or its subsidiaries. For further information on Amstrad Plc please visit our website: www.amstrad.com Amstrad Plc. Brentwood House 169 Kings Road Brentwood Essex CM14 4EF Registered in England : No. 955321

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Join #emailer on freenode IRC ?
by M P 02 Mar '06

02 Mar '06

Since the activity is picking up considerably on this project, I'd like to invite people on IRC to join #emailer on freenode.net It'll be easier to get people interested, and we'll be able to follow some of the progress "live" !

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Another booting E3 here
by M P 02 Mar '06

02 Mar '06

My V4 E3 boots using Mark's tools. There were a few issues when building : + The buildroot "snapshots" fails to build, you need to explicitely tell it not to use snapshots of uLibc and busybox. After than you still will get a hanging boot until you fix the inittab + u-boot "examples" fails to build here, and break the build; I commented them from the Makefile and had to make clean && make to get a working u-boot.bin + The kernel config & patch as provided in the "v1" file works, however the delta-20060227.diff generates a kernel that hangs just after decompression here, no way to make it work... Looking forward to get that LCD + Console working :D Would it be easy to get the rootfs, u-boot and kernel in the flash ? we are fairly close to have a system that could be used to test stuff from a nfs partition or a usb flash drive; it would save a lot of time...

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FB driver update + sound?!
by Mark Underwood 02 Mar '06

02 Mar '06

Just to let you all know that I am still working on the FB driver :). I have the LCD lit up in a nice all over turquoise colour but no Penguin and nothing I do seems to change that :(. The LCD registers have almost the same settings (one of the unused bits is set in my driver which wasn't set in the 2.4 kernel, but I can't see in the code where it could be set). I get 3 interrupts from the FB which looks about right as once it is up and running it's frame interrupt is disabled. The other news is that I have built all the sound stuff ok and I think it is working as the DMA interrupts go up, but all I have done so far is to 'cat /dev/urandom > /dev/dsp' which makes some difference to the noise, but as the unit is always generating noise I don't know if it is playing my noise or its normal noise! I will hopefully have time to test it with mpeg321 tonight. If it doesn't work then I guess there is a bit in the latch that I need to set to switch on the output amp. Mark ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

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RE: [E3-hacking] New E3, no linux boot messages ?
by Cliff Lawson 02 Mar '06

02 Mar '06

That's normal - we just changed it in later versions to be "less noisy" Cliff -----Original Message----- From: M P [mailto:buserror@gmail.com] Sent: 02 March 2006 10:57 To: e3-hacking(a)earth.li Subject: [E3-hacking] New E3, no linux boot messages ? I apparently have a "V4" software revision, and I only get what I assume is the PBL boot message; as soon as linux is loaded and the machine boots, the messages stops... This e-mail and any attachments are confidential and intended exclusively for the addressee. If you are not the intended recipient please delete it from your system and notify the sender immediately. This message is attributed to the sender and may not necessarily reflect the views of Amstrad Plc or its subsidiaries. For further information on Amstrad Plc please visit our website: www.amstrad.com Amstrad Plc. Brentwood House 169 Kings Road Brentwood Essex CM14 4EF Registered in England : No. 955321

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New E3, no linux boot messages ?
by M P 02 Mar '06

02 Mar '06

I apparently have a "V4" software revision, and I only get what I assume is the PBL boot message; as soon as linux is loaded and the machine boots, the messages stops... Is it a known revision ? It's an unregistered devive BTW. System module loader - LDR V1.5 Build:0008 Assert Mod scan 10010100 to 10230100 MEM - 10024000 (flash 00404000) PARMS - 10024400 (flash 00404400) LDR - 10024800 (flash 00404800) PARMS - 10034400 (flash 00414400) LINUX - 10044000 (flash 00424000) LINUX - 10144000 (flash 00524000) num modules: 6 checking LDR V1 at 10024800, alive=0, load=10002000 checking LINUX V1 at 10044000, alive=0, load=11800000 checking LINUX V4 at 10144000, alive=0, load=11800000 two modules called LINUX checking MEM V1 at 10024000, alive=0, load=11F00000 checking PARMS V1 at 10024400, alive=0, load=11900000 checking PARMS V2 at 10034400, alive=0, load=11900000 two modules called PARMS 6 Modules processed, 6 are valid LDR thinks global number for them is 4 Found mod <LINUX> V=4 at 10144000 Found mod <PARMS> V=2 at 10034400 Linux command line module (PARMS) found at 10034400 INITRD Not found Linux start-up params (Any key to edit) Found mod <LINUX> V=4 at 10144000 Uncompressing Linux........................................................ don.

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Re: [E3-hacking] LCD is a go.
by Matt Callow 01 Mar '06

01 Mar '06

> > From: Jonathan McDowell <noodles(a)earth.li> > Date: 2006/03/01 Wed PM 05:39:58 GMT > To: e3-hacking(a)earth.li > Subject: [E3-hacking] LCD is a go. > > http://www.earth.li/~noodles/images/e3-lcd.jpg Excellent work. > > I now have a working LCD on the E3. I'll try to get an updated patch out > shortly; ideally once I've got the input driver hooked up as well to > allow it to be used as a console. > > J. > Can't wait to give it a try Matt

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LCD is a go.
by Jonathan McDowell 01 Mar '06

01 Mar '06

http://www.earth.li/~noodles/images/e3-lcd.jpg I now have a working LCD on the E3. I'll try to get an updated patch out shortly; ideally once I've got the input driver hooked up as well to allow it to be used as a console. J. -- ] http://www.earth.li/~noodles/ [] noodles is the lead guitar player [ ] PGP/GPG Key @ the.earth.li [] in the offspring [ ] via keyserver, web or email. [] [ ] RSA: 4DC4E7FD / DSA: 5B430367 [] [

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Just joined
by M P 27 Feb '06

27 Feb '06

I've been lurking for a few months, reading the list and waiting patiently for someone clever to get the E3 booting ! So thanks to Mark, and all the others I went to Argos earlier today and picked my £29.99 E3 to play with ! I'm reasonably good at embedded stuff, drivers etc and I look forward to get a go and help, however I lack "heavy" electronic equipment. Is there a quick "howto" to get the E3 flashed, starting feom scratch ? Do I even have to register it at all ?

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Re: [E3-hacking] Keypress output
by Matt Callow 27 Feb '06

27 Feb '06

> > Can someone running the 2.6 kernel try pushing the q and j keys on their > E3 keyboard (the one on the device, not the mailboard) and let me know > if they get any output like: > > omap-keypad: Spurious key event x-y > > where x and y are numbers? I'm wondering if I've messed a cable up > putting mine back together or if it just has something odd for some of > the keys. Pressing 'q' gives me omap-keypad: Spurious key event 4-3 omap-keypad: Spurious key event 4-3 Pressing 'j' gives me omap-keypad: Spurious key event 4-5 omap-keypad: Spurious key event 4-5 the 1st event in each case occurs when the key is pressed, the 2nd occurs after a short delay Every other key I tried gave a simlar response (with different values of x and y) Matt

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