I've pulled the latest master, in a fresh install. It is working! thanks,
Nico Johan Ström wrote: > Since this HW is out there in unknown number of deployments, it makes more > sense to add a SW fix. I added a verify_mask which ignores the button > pull-ups on read-back. > > Nico: Can you pull latest master and try that? > If 'git show HEAD' shows your revert at the top, you must first do 'git reset > --hard HEAD^' (assuming you have no other uncommited changes). Then you can > do 'git pull'. > > Johan > > On 03/04/16 20:30, Johan Ström wrote: >> Hello again, >> >> I've gotten some helpful off-list response from Der Tiger, and to sum it up. >> >> The hardware Tiger uses (Hobbyboard) is electrically identical to the on >> Nico uses (https://fstab.nl/en/lcd_owfs), except that the Hobbyboard >> schematic has 3 pushbuttons between P0..P3 and GND, with 10nF cap's in >> parallel, and 3 10k pull-ups between VCC and P0..P3. The schematic Nico uses >> leaves P0..P3 floating. >> >> One theory put forward by Der Tiger is that, since the patch disables the >> PIO output transistors for P0..P3 and thus leaving the outputs in an >> undefined state, the chip/owfs could be confused. >> >> Also, with the help of Jan's explanation on the command sequence, I cannot >> really see any apparent issues with the patch. >> >> After studying the logs (which says ' Error sending initial attention'), and >> the corresponding code, I'm quite sure the lacking pull-ups are the source >> of the problem. >> OW_Hinit->OW_w_pios writes a byte and then read backs the PIO status, >> expecting them to be the same. If no pull-ups are present, it will i.e write >> 0x37, but read back 0x30, and fail. >> This is the case in the log (see below, [1]). >> >> >> Nico: Can you try to add some 10k resistors between P0-VCC, P1-VCC and >> P3-VCC? Remember to test with the original code (without the extra revert). >> Hopefully that will help! >> Thanks to Tiger and Jan for helping to (hopefully) fix this issue :) >> >> Johan >> >> >> >> [1] >> TRAFFIC IN <NETREAD> bus=0 (/dev/ttyUSB0) >> Byte buffer DS9097U, length=1 >> --000: 37 (Here we write 0x37) >> <7> >> TRAFFIC IN <NETREAD> bus=0 (/dev/ttyUSB0) >> Byte buffer DS9097U, length=1 >> --000: C8 >> <.> >> TRAFFIC IN <NETREAD> bus=0 (/dev/ttyUSB0) >> Byte buffer DS9097U, length=1 >> --000: AA >> <.> >> TRAFFIC IN <NETREAD> bus=0 (/dev/ttyUSB0) >> Byte buffer DS9097U, length=1 >> --000: 30 (Here we read back 0x30, bit 0-3 is not pulled up.) >> <0> >> DEBUG: ow_tcp_read.c:(113) read: 4 - 0 = 4 >> DEBUG: ow_transaction.c:(145) modify = 0 >> DEBUG: ow_transaction.c:(208) end = 0 >> DEBUG: ow_2408.c:(442) Error sending initial attention >> DEBUG: ow_2408.c:(406) Screen initialization error >> >> > > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > -- 0623391101 ------------------------------------------------------------------------------ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
