Commit Graph

9 Commits

Author SHA1 Message Date
Gregory Nutt
6c4dac459a lcd/: PCF8574 backpack logic needs to include poll.h CONFIG_DISABLE_POLL is not set. 2017-03-27 12:28:34 -06:00
Gregory Nutt
24c51ec1ff Centralize definitions associated with CONFIG_DEBUG_LCD 2016-06-15 11:40:33 -06:00
Gregory Nutt
0665c7e06c drivers/: Change some nerr() ERRORS to ninfo() and nwarn() WARNINGS. 2016-06-12 09:26:12 -06:00
Gregory Nutt
a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
ziggurat29
bb7a579681 fleshed out rest of fileops interface; read now takes into consideration current file position (so the display can be read in multiple operations, and indiate EOF correctly), seek (really just to facilitate rewind), and unlink (to facilitate dropping from system at runtime). 2016-05-29 14:53:37 -05:00
ziggurat29
4643fcdfd8 correct logic hazard in latch and load nybble; was transitioning control lines at the same time as enable, causing spurious behaviour on less-tolerant displays
improve timing parameters in init sequences for better display compatibility

correct (row,col) -> address calculation; affects 4-line displays

update comments in header and readme
2016-05-29 11:09:00 -05:00
Gregory Nutt
d58e4acf17 Remove whitespace from the end of lines 2016-05-25 08:48:55 -06:00
Gregory Nutt
51504a032e Oops... forgot to add PCF8574 LCD Backpack files before doing the commit. 2016-05-25 08:48:54 -06:00