How do I removed the audio pins so I can test it? --Mark
On Tuesday, September 11, 2018 at 2:33:12 PM UTC-4, RobertCNelson wrote: > > On Tue, Sep 11, 2018 at 1:15 PM Robert Nelson <robert...@gmail.com > <javascript:>> wrote: > > > > On Tue, Sep 11, 2018 at 12:49 PM Mark A. Yoder <mark.a...@gmail.com > <javascript:>> wrote: > > > > > > Robert Nelson has answered my question. There are a number of pins > already used on the BeagleBone Green Wireless that can't otherwise be used. > > > > > > I've made a list of them[1]. > > > > > > --Mark > > > > > > [1] https://elinux.org/EBC_Exercise_10b_Green_Wireless_Pins_Used > > > > We should add a few details, > > > > Pins: > > P8_11, P8_16, and P8_15 can be recovered, by sticking the wl1835 wifi > > module in 1-bit mode vs 4-bit mode.. > > > > sudo rm /lib/firmware/BB-BBGW-WL1835-00A0.dtbo > > sudo cp /lib/firmware/BB-BBGW-WL1835-1BIT-00A0.dtbo > > /lib/firmware/BB-BBGW-WL1835-00A0.dtbo > > > > P8_12 = WL1835: mmc2_dat0 > > P8_18 = WL1835: mmc2_clk > > > > P8_14 = WL1835: Wireless enabled > > P8_17 = WL1835: Wireless IRQ > > > > P9_12 = WL1835: Bluetooth enabled > > > > Pins: > > P8_26, P9_30 are "gpio hogged" at startup, not user changeable. > > > > Pins: > > P9_28, P9_29, and P9_31 are used by audio, which isn't actually used, > > but tied up.. > > > > @mark, random thought, do you want to try booting with > > P9_28/P9_29/P9_31 removed from bbgw.. > > > > for example.. > > > > > https://github.com/beagleboard/bb.org-overlays/commit/502c3d228dd6a6902cc6d7b32014075b7c6b8eb6 > > > Okay, wifi/bluetooth correctly came up on restart and cold boot with > those pins removed from the overlay. > > Give them a try with a spi device connected up. If they work without > breaking the wl1835, we will just nuke those 3 audio pins.. > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/f50737f5-bdfc-4fac-b598-f41f8df0c1d9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
