My colleague Jerome had solved the problem. I forward you his solution. Alexander
Begin forwarded message: > From: Jérôme Guzzi <[email protected]> > Date: March 18, 2010 9:26:21 AM GMT+01:00 > To: Alexander Förster <[email protected]> > Cc: Gilles Caprari <[email protected]> > Subject: Re: [E-puck-user] Sensing e-puck battery charge level > > There is an interrupt (_LVDInterrupt) for low voltage detection on the dspic, > see datasheet "Section 9. Low Voltage Detect (LVD)". Below there is my code > segment where I implement the event "on_low_battery", which is fired by this > interrupt. > > > static void init_lvd(){ > on_low_battery=add_event(); > on_low_battery->check_function=always_true; > set_action(on_low_battery,lowBattery); > > //set interrupt prority -> 1 > > IPC10=(IPC10 & 0xFF1F) + 0x0020; > _LVDIE=0; > _LVDEN=1; > > //set voltage threshold -> 7 (<3.1 V, see datasheet p. 184) > > RCON=(RCON & 0xF0FF) +0x0700; > while(!_BGST); > _LVDIF=0; > _LVDIE=1; > } > > void __attribute__((interrupt, auto_psv)) _LVDInterrupt(void) > { > _LVDIF=0; > _LVDEN=0; > _LVDIE=0; > check(on_low_battery); > } > > //An example action > > void lowBattery(Event *e,void *arg){ > e_set_led(9,1); > } > > On Mar 18, 2010, at 7:12 AM, Alexander Förster wrote: > >> Ciao Jerome, >> >> What was your solution? Do you like to answer? >> >> Alexander >> >> >> Begin forwarded message: >> >>> From: "Michael Bonani" <[email protected]> >>> Date: March 17, 2010 10:45:43 PM GMT+01:00 >>> To: "'Francesco Mondada'" <[email protected]>, >>> <[email protected]> >>> Cc: [email protected], 'M O Faruque Sarker' <[email protected]> >>> Subject: Re: [E-puck-user] Sensing e-puck battery charge level >>> >>> >>> Hi, >>> >>> There is also a “batt_low” signal Pin RF1, same signal that made this red >>> led blinks. So if you read 1 at this dspic input, battery ok, if 0 battery >>> is low. >>> Strange that it is not in the library. >>> >>> >>> Bonani Michael >>> >>> >>> From: [email protected] [mailto:[email protected]] On >>> Behalf Of Francesco Mondada >>> Sent: Wednesday, March 17, 2010 9:20 PM >>> To: [email protected] >>> Cc: [email protected]; M O Faruque Sarker >>> Subject: Re: [E-puck-user] Sensing e-puck battery charge level >>> >>> The battery voltage is wired to the handset input (analog input) of the >>> codec (si3000). Reading this input (through I2S, not trivial) you should >>> get the battery level. Somebody already tried? >>> >>> >>> Francesco >>> >>> On 17 mars 2010, at 18:00, [email protected] wrote: >>> >>> >>> >>> >>> The e-puck tells you when the battery is low(near to the presence led there >>> is a small red led that blinks when the battery is low), i think that there >>> is no program to do that.... >>> >>> On Qua Mar 17 15:46 , M O Faruque Sarker sent: >>> >>> >>> Hello all, >>> >>> Does anybody know how to find out the level of battery charge in e-puck ? >>> >>> It would be interesting if one can identify from program code when the >>> battery level is critically low (say less than 10% charge). >>> >>> Best regards, >>> Faruque >>> -- >>> ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ >>> Md Omar Faruque Sarker >>> PhD Student, >>> Robotic Intelligence Lab, >>> Department of Computing, >>> University of Wales, Newport, >>> Allt-yr-yn Campus, Newport, NP20 5XR, UK >>> ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ >>> >>> Área de Clientes Clix – Toda a gestão dos seus serviços online! >>> http://cliente.clix.pt/. <ATT00001..txt> >>> >>> ------------------------------ >>> Dr. Francesco Mondada >>> Senior researcher, MER >>> >>> Ecole Polytechnique Fédérale de Lausanne (EPFL) >>> Laboratoire de Systèmes Robotiques (LSRO) >>> >>> Postal address: >>> Francesco Mondada >>> EPFL - STI - IMT - LSRO >>> bureau MEB330, Station 9 >>> CH-1015 Lausanne, Switzerland >>> >>> tel: +41 21 693 73 57 >>> fax: +41 21 693 78 07 >>> http://lsro.epfl.ch >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> E-puck-user mailing list >>> [email protected] >>> https://mail.gna.org/listinfo/e-puck-user >> > -- Dr. Alexander Förster IDSIA - Istituto Dalle Molle di Studi sull'Intelligenza Artificiale Galleria 2 CH-6928 Manno - Switzerland Phone: +41 58 666-6714 /-66 35 Fax: +41 58 666 6661 [email protected] http://www.idsia.ch/~alexander
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