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author | Joel Bodenmann <joel@unormal.org> | 2013-01-09 14:29:32 +0100 |
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committer | Joel Bodenmann <joel@unormal.org> | 2013-01-09 14:29:32 +0100 |
commit | a2a87ddd458ef0811dfb71510d7027d23038005b (patch) | |
tree | 50a3ea9a35756406f1c5ee2a5cc7a65967dd9988 /drivers/tdisp/HD44780/tdisp_lld.c | |
parent | 7a66e63849f43aae17fb256afadc475ffc578945 (diff) | |
download | uGFX-a2a87ddd458ef0811dfb71510d7027d23038005b.tar.gz uGFX-a2a87ddd458ef0811dfb71510d7027d23038005b.tar.bz2 uGFX-a2a87ddd458ef0811dfb71510d7027d23038005b.zip |
added TDISP - experimental
Diffstat (limited to 'drivers/tdisp/HD44780/tdisp_lld.c')
-rw-r--r-- | drivers/tdisp/HD44780/tdisp_lld.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/tdisp/HD44780/tdisp_lld.c b/drivers/tdisp/HD44780/tdisp_lld.c new file mode 100644 index 00000000..b830a7ca --- /dev/null +++ b/drivers/tdisp/HD44780/tdisp_lld.c @@ -0,0 +1,87 @@ +/* + ChibiOS/GFX - Copyright (C) 2012 + Joel Bodenmann aka Tectu <joel@unormal.org> + + This file is part of ChibiOS/GFX. + + ChibiOS/GFX is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/GFX is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/** + * @file drivers/tdisp/HD44780/tdisp_lld.c + * @brief TDISP driver subsystem low level driver source for the HD44780 display + * + * @addtogroup TDISP + * @{ + */ + +#include "ch.h" +#include "hal.h" +#include "gfx.h" + +#if GFX_USE_TDISP /*|| defined(__DOXYGEN__)*/ + +#ifndef TDISP_ROWS + #define TDISP_ROWS 16 +#endif +#ifndef TDISP_COLUMNS + #define TDISP_COLUMNS 2 +#endif + +#include "tdisp_lld_board_example.h" + +void TDISP_LLD(write_cmd)(uint8_t data) { + setpin_rs(FALSE); + setpin_rw(FALSE); + + write_bus(data); + + setpin_e(TRUE); + chThdSleepMicroseconds(1); + setpin_e(FALSE); + chThdSleepMicroseconds(5); +} + +void TDISP_LLD(write_data)(uint8_t data) { + setpin_rs(TRUE); + setpin_rw(FALSE); + + write_bus(data); + + setpin_e(TRUE); + chThdSleepMicroseconds(1); + setpin_e(FALSE); + chThdSleepMicroseconds(5); +} + +bool_t TDISP_LLD(init)(void) { + /* initialise hardware */ + init_board(); + + /* initialise controller */ + chThdSleepMilliseconds(50); + TDISP_LLD(write_cmd)(0x38); + chThdSleepMilliseconds(64); + TDISP_LLD(write_cmd)(0x0f); + chThdSleepMicroseconds(50); + TDISP_LLD(write_cmd)(0x01); + chThdSleepMilliseconds(5); + TDISP_LLD(write_cmd)(0x06); + chThdSleepMicroseconds(50); + + return TRUE; +} + +#endif /* GFX_USE_TDISP */ + |