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Simon Howard
2023-08-03 23:03:18 -04:00
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The battery level(s) can be monitored using the auxilary channels of the ADC
for the touchscreen. Here are some emails which may be useful:
From: Simon D Howard <sdh300@ecs.soton.ac.uk>
To: Tony Lindgren <tony@atomide.com>
cc: Linux-7110-psion@lists.sourceforge.net
Subject: Re: [Linux-7110-psion] /proc patch
Date: Mon, 29 Apr 2002 18:57:35 +0100 (BST)
On Mon, 29 Apr 2002, Tony Lindgren wrote:
> So sounds like your SSI extra channel code might work on 5mx!
> Can you post it so we can try if you don't have a 5mx?
Well, it wasnt really specific code, I just hacked about with the adc
code. Currently it listens on the first 2 ports (which give the x, y
coordinate). If you change the following lines:
ssi_transmit_data(dev,0xd000);
ssi_transmit_data(dev,0x9000);
to
ssi_transmit_data(dev,0xd000 | 0x2000);
ssi_transmit_data(dev,0x9000 | 0x2000);
it ought to read the other channels (according to the adc datasheet
anyway, it didnt work so it may be that I'm totally wrong). I wrote a
small program to print the output from /dev/tpanel but I dont have it with
me right now - I adapted the picogui tpanel code.
Simon
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From: "Thilo Hille" <thilo@resourcery.de>
To: "Simon D Howard" <sdh300@ecs.soton.ac.uk>,
"Tony Lindgren" <tony@atomide.com>
Subject: Re: [Linux-7110-psion] /proc patch
Date: Tue, 30 Apr 2002 14:40:02 +0200
gotcha..
> So sounds like your SSI extra channel code might work on 5mx!
> Can you post it so we can try if you don't have a 5mx?
i just tweaked the controlbytes in adc7843.c
ssi_transmit_data(dev,0xa400); //channel 3
ssi_transmit_data(dev,0xe400); //channel 4
and voila shows up the battery state on channel three.
it stays around 2593 when accus inserted and drops down to <20 (needs about
a 3 minutes).
i think there are some capacitors discharging slowly this might be faster
when the external powersupply is disconnected.
how do we get this into an own driver?
Thilo Hille
resourcery GbR.
Habsburgerstr. 11
79104 Freiburg
Tel.: 0761-4567807
Fax.: 0761-4567805
thilo@resourcery.de
From: "Thilo Hille" <thilo@resourcery.de>
To: <linux-7110-psion@lists.sourceforge.net>
Subject: [Linux-7110-psion] power consumtion
Date: Tue, 30 Apr 2002 14:57:01 +0200
i just measured the battery current.
its about 2.74V.
the adc reports about 2594 (maybe rough mV?)
Thilo Hille
resourcery GbR.
Habsburgerstr. 11
79104 Freiburg
Tel.: 0761-4567807
Fax.: 0761-4567805
thilo@resourcery.de
_______________________________________________
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Linux-7110-psion@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-7110-psion
From: Simon D Howard <sdh300@ecs.soton.ac.uk>
To: Thilo Hille <thilo@resourcery.de>
cc: linux-7110-psion@lists.sourceforge.net
Subject: Re: [Linux-7110-psion] /proc patch
Date: Tue, 30 Apr 2002 19:23:27 +0100 (BST)
On Tue, 30 Apr 2002, Thilo Hille wrote:
> i just tweaked the controlbytes in adc7843.c
> ssi_transmit_data(dev,0xa400); //channel 3
> ssi_transmit_data(dev,0xe400); //channel 4
> and voila shows up the battery state on channel three.
> it stays around 2593 when accus inserted and drops down to <20 (needs about
> a 3 minutes).
> i think there are some capacitors discharging slowly this might be faster
> when the external powersupply is disconnected.
Good news, this seems to work on my revo too. I found this slightly
surprising as the email tony quoted suggested the battery monitoring was
done differently. When charging, it seems to reach a maximum of around
3950 but drops to around 3500 when its finished. EPOC seems to use
3950-4000 as its "100%" value too - I get similar readings from its
battery monitor.
I also get ~2464 (invariant) from the other channel - presumably the
backup battery.
> how do we get this into an own driver?
"with difficulty" :)
Simon
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From: "Thilo Hille" <thilo@resourcery.de>
To: "Simon D Howard" <sdh300@ecs.soton.ac.uk>
Cc: <linux-7110-psion@lists.sourceforge.net>
Subject: Re: [Linux-7110-psion] /proc patch
Date: Tue, 30 Apr 2002 20:51:00 +0200
hi simon,
> I also get ~2464 (invariant) from the other channel - presumably the
> backup battery.
hmmm i dont have a backupbattery inserted and ch4 shows up ~4084.
i dont have one at hands for now, but tomorrow i ll try it.
did you try to remove the backup battery while watching the 4th channel?
(hey, its like tv :)
i really forgot about the backupbattery. i removed it 2 month ago and as id
never used epoc since than i never needed it.
greetingz
Thilo Hille
resourcery GbR.
Habsburgerstr. 11
79104 Freiburg
Tel.: 0761-4567807
Fax.: 0761-4567805
thilo@resourcery.de
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ETNA CF CLPS7110 Name Description
3509-0169-02 Memory I/O
(C)PSION PLC
A12 R02 NL
9732M3006
Pin 1 <-> Pin 47 D08
Pin 2 <-> Pin 48 D09
Pin 3 <-> Pin 49 D10
Pin 4 <-> Pin 27 D11
Pin 5 <-> Pin 28 D12
Pin 6 <-> Pin 29 D13
Pin 7 <-> Pin 30 D14
Pin 8 <-> Pin 31 D15
Pin 9 <-- Pin 208 CS4 Expansion select 4 (PCMCIA 0)
Pin 10 <-- Pin 1 CS5 Expansion select 5 (PCMCIA 1)
Pin 11 <-- Pin 206 NCS2 ROM select 2 (Etna registers)
Pin 12 GND
Pin 13 VCC
Pin 14 --> Pin 45 BVD2 -SPKR n/a or speaker
Pin 15 --> Pin 45 BVD2 -SPKR n/a or speaker
Pin 16 <-- Pin 24 WP -IOIS16 Write protect or 16-bit I/O
Pin 17 <-- Pin 42 -WAIT Wait
Pin 18 <-- Pin 33 -VS1 Voltage select 1
Pin 19 <-- Pin 40 -VS2 Voltage select 2
Pin 20 <-- Pin 26 -CD1 Card detect (grounded in CF)
Pin 21 Pin 50 GND
Pin 22 <-- Pin 37 RDY/-BSY -IREQ Card ready or interrupt REQ
Pin 23
Pin 100 <-- Pin 25 -CD2 Card detect (grounded in CF)

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These are emails from an employee at Psion who worked on the 5mx and
provide some technical information. Thanks to Tony <tony@atomide.com> for
forwarding me these.
Date: Tue, 08 Aug 2000 20:52:12 +0100
From: Atish Nazir <hashaday@littleworld.freeserve.co.uk>
To: Peter Liniker <pl198@doc.ic.ac.uk>
Subject: Re: [Linux-7110-psion] psion5mx (fwd)
re:
---
> * the memory map
---
be more specific. what would you like to access?
re:
---
> * MMU details, esp. EPOC's MMU usage, so that ArLo can load the kernel
> into memory, initialise FiPaBoL and start it
---
hard one, because i'm not too clued up on that aspect of base. one
solution would be to install yourself as a "PartnerOS" - something EPOC
does have a provision for for the Philips smart phone of years ago.
documentation is very sparse though.
re:
---
> * ROM/serial/CF boot mechanism (latter two netbook only)
---
hehehe boss and i wrote this bit :o) protocol is basically YModem with
a few optional extras - i.e. any terminal program will be okay. the
exact specifics of the S7 client is unknown to me as a contractor at
Enterprise wrote it (a perpetually up beat guy).
re:
---
> * ROM/RAM speeds
---
varies according to machine _and_ when it was built in production
cycle. i.e. early machines have flash and later we switch to mask ROM
(with a small patch flash, should it be needed).
re:
---
> * interrupt handling
---
erm, it works...
re:
---
> * all the device interface specs:
> -- CF slot/card
---
function spec for ETNA - i'll find out, whom you have to speak about
this or whether i can release this (quite possible, but remember to say
thank you).
re:
---
> -- PCMCIA slot/card
---
functional spec for ASIC14 - ask Enterprise.
re:
---
> -- sound in/out, audio codecs
---
5, 5mx and Revo, sound out is identical (same drivers used in fact).
except on Revo, there's a slight pin move (can't remember what however,
it wasn't the buzzline). Revo sounds record is obviously disabled...
S7, go ask Enterprise...
re:
---
> -- screen
---
Eiger and Windermere have similar, but certainly different LCD
controllers on board - you'll have to change you device driver. i can't
give more details, because i don't know any more here - never worked on
that aspect.
re:
---
> -- pointer
---
ADC talks directly to main ASIC via SSP interface (changed on 5mx)
re:
---
> -- serial
---
UARTs integrated on main ASICS. Eiger only had one, Windy has two.
re:
---
> -- irda
---
see the bit about UARTs - same UARTs used for RS232 and talking to
IRDA.
re:
---
> -- power management/monitoring
---
hmm. 5, 5mx have voltmeters (same ADC as pointer). Revo has dedicated
current counter, talks via GPIO to main ASIC with a very slow
asynchronous serial protocol.
re:
---
> -- timers
> * Which of these are the same as series5?
---
same as before.
re:
---
> * Config used for the SA1100 and support.
---
how many ports are going here? the people to contact would be Psion
Enterprise as it's really more their turf.
re:
---
> * "ETNA" specs (this is the main ASIC, AFAIK)
---
no, rubbish. ETNA is a helper ASIC. chip code names: Eiger,
Windermere and SA1100 (affectionately known as Sally), which correspond
to 5, 5mx and Revo, and S7 and Net book.
re:
---
> * We'd also like the ER5 DDK info/headers - enough to compile arlo
> "properly".
---
you'll need the E32 tree, this comes with the OCK and DDK. since i use
the OCK (something only available to licensees of Symbian), i wouldn't
know how to obtain a copy of the DDK from Symbian (other than asking
nicely, but i can't imagine that working when they inevitably ask why
you want it). soz. been speaking to bossman and it looks like you'll
have to become a Symbian licencee / partner - PSION can't help you here
because it will violate our agreement with the collective.
IF YOU'RE INTERESTED:
if one individual is prepared to sign an NDA and many other evil
agreements (IPR etc) we have, i _might_ (not a promise, a lot of red
tape would have to be cleared and i'd have to speak to a lot of people)
be able to provide the full Windermere spec for free.
however if a few people are London based, what may a more attractive
solution, a few members of the systems team could give a short seminar
or something along those lines, answering questions in person, giving
the vital information and so forth...
n.b. both these proposals have to be confirmed with other powers that
be.
--- --- ---
.~. the way of the Sacred Penguin is the path of
/V\ the truly righteous...
// \\/
/( ) hashaday@littleworld.freeserve.co.uk
^`~'^ http://thor.prohosting.com/~hashaday/
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---------- Forwarded message ----------
Date: Tue, 08 Aug 2000 18:45:00 +0100
From: Atish Nazir <hashaday@littleworld.freeserve.co.uk>
To: Peter Liniker <pl198@doc.ic.ac.uk>
Subject: Re: [Linux-7110-psion] psion5mx (fwd)
re:
---
> Etna is the S5 ASIC, AFAIK.
---
ETNA (aka ASIC12) is the _helper_ ASIC for Eiger (S5) and Windermere
(5MX). it adds CF capabilities and some other gubbins. basically it
adds more pins to the CPU.
re:
---
> Is the S5mx/7 ASIC called Etna? (Although you may not be able to answer
> this!)
---
the S7 and NetBook uses ASIC14 (aka "that many legged bastard"), which
has nothing really in common with ETNA other than it was designed by the
same guy (and uses same VHDL for the timers, copy and paste is a
wonderful thing). it's also a helper ASIC, the exact specifics i can't
be sure of because Enterprise have done a lot of developmental work on
it...
--- --- ---
.~. the way of the Sacred Penguin is the path of
/V\ the truly righteous...
// \\/
/( ) hashaday@littleworld.freeserve.co.uk
^`~'^ http://thor.prohosting.com/~hashaday/
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ps7110db.pdf - 7110 processor data sheet
msm7717_01_02_03.pdf - 7717 CODEC sound chip
sbas090a.pdf - 7843 ADC chip (touchscreen/battery monitor)
psion_mails.txt - Emails from a Psion Employee providing some
technical insight..
battery_info.txt - Results of hacking with the ADC in order to read
the battery level.

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