diff --git a/Libraries/u8glib/u8g_dev_pcd8544_84x48.c b/Libraries/u8glib/u8g_dev_pcd8544_84x48.c new file mode 100644 --- /dev/null +++ b/Libraries/u8glib/u8g_dev_pcd8544_84x48.c @@ -0,0 +1,141 @@ +/* + + u8g_dev_pcd8544_84x48.c + + Display: Nokia 84x48 + + Status: Tested with PCF8812 Display + + + Universal 8bit Graphics Library + + Copyright (c) 2011, olikraus@gmail.com + All rights reserved. + + Redistribution and use in source and binary forms, with or without modification, + are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this list + of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright notice, this + list of conditions and the following disclaimer in the documentation and/or other + materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +*/ + +#include "u8g.h" + +#define WIDTH 84 +#define HEIGHT 48 +#define PAGE_HEIGHT 8 + + +static const uint8_t u8g_dev_pcd8544_init_seq[] PROGMEM = { + U8G_ESC_CS(0), /* disable chip */ + U8G_ESC_ADR(0), /* instruction mode */ + U8G_ESC_RST(1), /* do reset low pulse with (1*16)+2 milliseconds */ + U8G_ESC_CS(1), /* enable chip */ + 0x021, /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */ + 0x006, /* temp. control: b10 = 2 */ + 0x013, /* bias system 1:48 */ + 0x0c0, /* medium Vop */ + 0x020, /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + 0x00c, /* display on, normal operation */ + U8G_ESC_DLY(100), /* delay 100 ms */ + 0x020, /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + 0x00d, /* display on, invert */ + U8G_ESC_DLY(100), /* delay 100 ms */ + U8G_ESC_DLY(100), /* delay 100 ms */ + 0x020, /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + 0x00c, /* display on, normal */ + U8G_ESC_DLY(100), /* delay 100 ms */ + U8G_ESC_CS(0), /* disable chip */ + U8G_ESC_END /* end of sequence */ +}; + + +static const uint8_t u8g_dev_pcd8544_sleep_on[] PROGMEM = { + U8G_ESC_ADR(0), /* instruction mode */ + U8G_ESC_CS(1), /* enable chip */ + + 0x020, /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + 0x00c, /* display on, normal */ + U8G_ESC_CS(1), /* disable chip */ + U8G_ESC_END /* end of sequence */ +}; + +static const uint8_t u8g_dev_pcd8544_sleep_off[] PROGMEM = { + U8G_ESC_ADR(0), /* instruction mode */ + U8G_ESC_CS(1), /* enable chip */ + 0x020, /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + 0x008, /* display blank */ + 0x024, /* power down (PD=1), horizontal increment (V=0), enter normal command set (H=0) */ + + U8G_ESC_DLY(50), /* delay 50 ms */ + U8G_ESC_CS(1), /* disable chip */ + U8G_ESC_END /* end of sequence */ +}; + + +uint8_t u8g_dev_pcd8544_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) +{ + switch(msg) + { + case U8G_DEV_MSG_INIT: + u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_400NS); + u8g_WriteEscSeqP(u8g, dev, u8g_dev_pcd8544_init_seq); + break; + case U8G_DEV_MSG_STOP: + break; + case U8G_DEV_MSG_PAGE_NEXT: + { + u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem); + u8g_SetAddress(u8g, dev, 0); /* command mode */ + u8g_SetChipSelect(u8g, dev, 1); + u8g_WriteByte(u8g, dev, 0x020 ); /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + u8g_WriteByte(u8g, dev, 0x080 ); /* set X address */ + u8g_WriteByte(u8g, dev, 0x040 | pb->p.page); /* set Y address */ + u8g_SetAddress(u8g, dev, 1); /* data mode */ + if ( u8g_pb_WriteBuffer(pb, u8g, dev) == 0 ) + return 0; + u8g_SetChipSelect(u8g, dev, 0); + } + break; + case U8G_DEV_MSG_CONTRAST: + /* the contrast adjustment does not work, needs to be analysed */ + u8g_SetAddress(u8g, dev, 0); /* instruction mode */ + u8g_SetChipSelect(u8g, dev, 1); + u8g_WriteByte(u8g, dev, 0x021); /* command mode, extended function set */ + u8g_WriteByte(u8g, dev, 0x080 | ( (*(uint8_t *)arg) >> 1 ) ); + u8g_SetChipSelect(u8g, dev, 0); + return 1; + case U8G_DEV_MSG_SLEEP_ON: + u8g_WriteEscSeqP(u8g, dev, u8g_dev_pcd8544_sleep_on); + return 1; + case U8G_DEV_MSG_SLEEP_OFF: + u8g_WriteEscSeqP(u8g, dev, u8g_dev_pcd8544_sleep_off); + return 1; + } + return u8g_dev_pb8v1_base_fn(u8g, dev, msg, arg); +} + + +U8G_PB_DEV(u8g_dev_pcd8544_84x48_sw_spi , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_pcd8544_fn, U8G_COM_SW_SPI); +U8G_PB_DEV(u8g_dev_pcd8544_84x48_hw_spi , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_pcd8544_fn, U8G_COM_HW_SPI); +