Hi Luca, we have been able to successfully run the driver but: We have the device running in SPI and we are observing a strange scenario. When the AP is placed 10 meters far from the device (-57db) it's very difficult scanning the ESSIDs and impossible to connect to them, the same behaviour doesn't happen when I move the AP close (10 cm) to the device. In that case I can scan the ESSIDs and I can connect to them easily. The calibration we have performed is the First Calibration listed on that web site and we have more questions: 1) is there any document explaining in depth all the parameters of the ini file TQS_S_2.6.ini 2) we used "./calibrator plt calibrate", what plt means ? 3) if we want to use the expert mode, we would have to provide <voltage>,<power>,<subband> and then tx_bip parameters, where we can found indication/documentation about that ? 4) is there any auto calibration ? 5) Could you please define the meaning of the "TxBip procedure" and when should be used ? 6) Could you please define the meaning of the "Tx Cont Procedure" and when should be used ? 7) Could you please define the meaning of the "Rx Stat procedure" and when should be used ? Kind Regards Alberto -----Original Message----- From: Alberto Garau Sent: mercoledì 12 dicembre 2012 13:18 To: 'Luciano Coelho' Cc: linux-wireless@xxxxxxxxxxxxxxx; Ido Yariv; Arik Nemtsov; Adriano Melis; Luca Fresi Subject: RE: wl12xx over spi with no scan results Hi Luca, I'm trying to calibrate my device as suggested, following the guide found at: http://processors.wiki.ti.com/index.php/OMAP_Wireless_Connectivity_Calibration_Proccess_NLCP In particular I'm trying to replicate the example at the end of the document and at step 3 of the example I'm obtaining: root@(none):~/ti-utils# ./calibrator plt calibrate wl1271: power up chip_id read from memory: 04030111 wl1271_fetch_firmware - fetching firmware wl1271-fw.bin wl1271_fetch_nvs - fetching firmware wl1271-nvs.bin enable_interrupts_wl1271 wl1271: firmware booted in PLT mode (Rev 6.1.0.50.350) Fail to calibratwl1271: power down e ith radio statdisable_interrupts_wl1271 us (-80) root@(none):~/ti-utils# Any idea about why my calibration process is failing ? I was able to complete the first steps creating the nvs from ini files But I'm failing in "calibrator plt calibrate". Thanks in advance Alberto -----Original Message----- From: Luciano Coelho [mailto:coelho@xxxxxx] Sent: mercoledì 12 dicembre 2012 11:17 To: Alberto Garau Cc: linux-wireless@xxxxxxxxxxxxxxx; Ido Yariv; Arik Nemtsov; Adriano Melis; Luca Fresi Subject: Re: wl12xx over spi with no scan results On Wed, 2012-12-12 at 10:13 +0000, Alberto Garau wrote: > Thanks Luca, > > we tried with FALLING_EDGE for the interrupt but the driver got stucked so I had to put again RISING_EDGE. > > We successfully cross compiled iw but also with that tool we always > see only on ESSID from one specific AP I didn't expect the scan to improve with iw, but at least now you're using the right tool. :) > while the others ESSID from the second AP are available only sometime. > > That's very strange. > > Do you think we are facing calibration problems ? Yes, I guess calibration is the most likely cause now. > In our CMD0 we have > > bit 13 = 1 IB interrupt is active high > > bit 14 = 1 IB interrupt is open drain > > Do you think is right according do RISING_EDGE interrupt ? I think this is okay. I don't think the problem is the interrupt now. You should try to calibrate your device and generate a proper NVS file. -- Luca. ��.n��������+%������w��{.n�����{���zW����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
