diff options
Diffstat (limited to 'ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_dev_st7920_192x32.c')
| -rwxr-xr-x | ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_dev_st7920_192x32.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_dev_st7920_192x32.c b/ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_dev_st7920_192x32.c new file mode 100755 index 000000000..736b08289 --- /dev/null +++ b/ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_dev_st7920_192x32.c @@ -0,0 +1,151 @@ +/* + + u8g_dev_st7920_192x32.c + + 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 192 +#define HEIGHT 32 + + +/* init sequence from https://github.com/adafruit/ST7565-LCD/blob/master/ST7565/ST7565.cpp */ +static const uint8_t u8g_dev_st7920_192x32_init_seq[] PROGMEM = { + U8G_ESC_CS(0), /* disable chip */ + U8G_ESC_ADR(0), /* instruction mode */ + U8G_ESC_RST(15), /* do reset low pulse with (15*16)+2 milliseconds (=maximum delay)*/ + U8G_ESC_DLY(100), /* 8 Dez 2012: additional delay 100 ms because of reset*/ + U8G_ESC_CS(1), /* enable chip */ + U8G_ESC_DLY(50), /* delay 50 ms */ + + 0x038, /* 8 Bit interface (DL=1), basic instruction set (RE=0) */ + 0x00c, /* display on, cursor & blink off; 0x08: all off */ + 0x006, /* Entry mode: Cursor move to right ,DDRAM address counter (AC) plus 1, no shift */ + 0x002, /* disable scroll, enable CGRAM adress */ + 0x001, /* clear RAM, needs 1.6 ms */ + U8G_ESC_DLY(100), /* delay 10 ms */ + + U8G_ESC_CS(0), /* disable chip */ + U8G_ESC_END /* end of sequence */ +}; + +uint8_t u8g_dev_st7920_192x32_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_st7920_192x32_init_seq); + break; + case U8G_DEV_MSG_STOP: + break; + case U8G_DEV_MSG_PAGE_NEXT: + { + uint8_t y, i; + uint8_t *ptr; + u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem); + + u8g_SetAddress(u8g, dev, 0); /* cmd mode */ + u8g_SetChipSelect(u8g, dev, 1); + y = pb->p.page_y0; + ptr = pb->buf; + for( i = 0; i < 8; i ++ ) + { + u8g_SetAddress(u8g, dev, 0); /* cmd mode */ + u8g_WriteByte(u8g, dev, 0x03e ); /* enable extended mode */ + u8g_WriteByte(u8g, dev, 0x080 | y ); /* y pos */ + u8g_WriteByte(u8g, dev, 0x080 ); /* set x pos to 0*/ + u8g_SetAddress(u8g, dev, 1); /* data mode */ + u8g_WriteSequence(u8g, dev, WIDTH/8, ptr); + ptr += WIDTH/8; + y++; + } + u8g_SetChipSelect(u8g, dev, 0); + } + break; + } + return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg); +} + +uint8_t u8g_dev_st7920_192x32_4x_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_st7920_192x32_init_seq); + break; + case U8G_DEV_MSG_STOP: + break; + case U8G_DEV_MSG_PAGE_NEXT: + { + uint8_t y, i; + uint8_t *ptr; + u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem); + + u8g_SetAddress(u8g, dev, 0); /* cmd mode */ + u8g_SetChipSelect(u8g, dev, 1); + y = pb->p.page_y0; + ptr = pb->buf; + for( i = 0; i < 32; i ++ ) + { + u8g_SetAddress(u8g, dev, 0); /* cmd mode */ + u8g_WriteByte(u8g, dev, 0x03e ); /* enable extended mode */ + u8g_WriteByte(u8g, dev, 0x080 | y ); /* y pos */ + u8g_WriteByte(u8g, dev, 0x080 ); /* set x pos to 0*/ + u8g_SetAddress(u8g, dev, 1); /* data mode */ + u8g_WriteSequence(u8g, dev, WIDTH/8, ptr); + ptr += WIDTH/8; + y++; + } + u8g_SetChipSelect(u8g, dev, 0); + } + break; + } + return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg); +} + + +U8G_PB_DEV(u8g_dev_st7920_192x32_sw_spi, WIDTH, HEIGHT, 8, u8g_dev_st7920_192x32_fn, U8G_COM_ST7920_SW_SPI); +U8G_PB_DEV(u8g_dev_st7920_192x32_hw_spi, WIDTH, HEIGHT, 8, u8g_dev_st7920_192x32_fn, U8G_COM_ST7920_HW_SPI); +U8G_PB_DEV(u8g_dev_st7920_192x32_8bit, WIDTH, HEIGHT, 8, u8g_dev_st7920_192x32_fn, U8G_COM_FAST_PARALLEL); + + +#define QWIDTH (WIDTH*4) +uint8_t u8g_dev_st7920_192x32_4x_buf[QWIDTH] U8G_NOCOMMON ; +u8g_pb_t u8g_dev_st7920_192x32_4x_pb = { {32, HEIGHT, 0, 0, 0}, WIDTH, u8g_dev_st7920_192x32_4x_buf}; +u8g_dev_t u8g_dev_st7920_192x32_4x_sw_spi = { u8g_dev_st7920_192x32_4x_fn, &u8g_dev_st7920_192x32_4x_pb, U8G_COM_ST7920_SW_SPI }; +u8g_dev_t u8g_dev_st7920_192x32_4x_hw_spi = { u8g_dev_st7920_192x32_4x_fn, &u8g_dev_st7920_192x32_4x_pb, U8G_COM_ST7920_HW_SPI }; +u8g_dev_t u8g_dev_st7920_192x32_4x_8bit = { u8g_dev_st7920_192x32_4x_fn, &u8g_dev_st7920_192x32_4x_pb, U8G_COM_FAST_PARALLEL }; + |