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166 lines
6.0 KiB
166 lines
6.0 KiB
/* |
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u8x8_d_pcd8544_84x48.c (so called "Nokia 5110" displays) |
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Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) |
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Copyright (c) 2016, olikraus@gmail.com |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, this list |
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of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, this |
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list of conditions and the following disclaimer in the documentation and/or other |
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materials provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "u8x8.h" |
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static const uint8_t u8x8_d_pcd8544_84x48_init_seq[] = { |
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ |
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U8X8_C(0x021), /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */ |
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U8X8_C(0x006), /* temp. control: b10 = 2 */ |
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U8X8_C(0x013), /* bias system 1:48 */ |
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U8X8_C(0x0c0), /* medium Vop */ |
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U8X8_C(0x020), /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ |
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U8X8_C(0x008), /* blank */ |
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U8X8_C(0x024), /* power down (PD=1), horizontal increment (V=0), enter normal command set (H=0) */ |
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U8X8_END_TRANSFER(), /* disable chip */ |
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U8X8_END() /* end of sequence */ |
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}; |
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static const uint8_t u8x8_d_pcd8544_84x48_powersave0_seq[] = { |
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ |
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U8X8_C(0x020), /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ |
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U8X8_C(0x00c), /* display on */ |
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U8X8_END_TRANSFER(), /* disable chip */ |
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U8X8_END() /* end of sequence */ |
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}; |
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static const uint8_t u8x8_d_pcd8544_84x48_powersave1_seq[] = { |
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ |
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U8X8_C(0x020), /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ |
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U8X8_C(0x008), /* blank */ |
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U8X8_C(0x024), /* power down (PD=1), horizontal increment (V=0), enter normal command set (H=0) */ |
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U8X8_END_TRANSFER(), /* disable chip */ |
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U8X8_END() /* end of sequence */ |
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}; |
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static const u8x8_display_info_t u8x8_pcd8544_84x48_display_info = |
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{ |
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/* chip_enable_level = */ 0, |
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/* chip_disable_level = */ 1, |
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/* post_chip_enable_wait_ns = */ 5, |
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/* pre_chip_disable_wait_ns = */ 5, |
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/* reset_pulse_width_ms = */ 2, |
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/* post_reset_wait_ms = */ 2, |
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/* sda_setup_time_ns = */ 12, |
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/* sck_pulse_width_ns = */ 75, /* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */ |
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/* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */ |
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/* spi_mode = */ 0, /* active high, rising edge */ |
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/* i2c_bus_clock_100kHz = */ 4, |
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/* data_setup_time_ns = */ 30, |
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/* write_pulse_width_ns = */ 40, |
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/* tile_width = */ 11, /* width of 11*8=88 pixel */ |
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/* tile_hight = */ 6, |
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/* default_x_offset = */ 0, |
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/* flipmode_x_offset = */ 0, |
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/* pixel_width = */ 84, |
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/* pixel_height = */ 48 |
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}; |
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uint8_t u8x8_d_pcd8544_84x48(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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{ |
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uint8_t x, c; |
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uint8_t *ptr; |
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switch(msg) |
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{ |
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case U8X8_MSG_DISPLAY_SETUP_MEMORY: |
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u8x8_d_helper_display_setup_memory(u8x8, &u8x8_pcd8544_84x48_display_info); |
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break; |
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case U8X8_MSG_DISPLAY_INIT: |
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u8x8_d_helper_display_init(u8x8); |
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u8x8_cad_SendSequence(u8x8, u8x8_d_pcd8544_84x48_init_seq); |
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break; |
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case U8X8_MSG_DISPLAY_SET_POWER_SAVE: |
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if ( arg_int == 0 ) |
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u8x8_cad_SendSequence(u8x8, u8x8_d_pcd8544_84x48_powersave0_seq); |
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else |
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u8x8_cad_SendSequence(u8x8, u8x8_d_pcd8544_84x48_powersave1_seq); |
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break; |
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// case U8X8_MSG_DISPLAY_SET_FLIP_MODE: |
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// break; NOT SUPPORTED |
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#ifdef U8X8_WITH_SET_CONTRAST |
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case U8X8_MSG_DISPLAY_SET_CONTRAST: |
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u8x8_cad_StartTransfer(u8x8); |
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u8x8_cad_SendCmd(u8x8, 0x021 ); /* command mode, extended function set */ |
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u8x8_cad_SendCmd(u8x8, 0x080 | (arg_int >> 1) ); |
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u8x8_cad_EndTransfer(u8x8); |
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break; |
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#endif |
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case U8X8_MSG_DISPLAY_DRAW_TILE: |
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u8x8_cad_StartTransfer(u8x8); |
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x = ((u8x8_tile_t *)arg_ptr)->x_pos; |
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x *= 8; |
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x += u8x8->x_offset; |
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u8x8_cad_SendCmd(u8x8, 0x020 ); /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ |
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u8x8_cad_SendCmd(u8x8, 0x080 | (x) ); /* set X address */ |
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u8x8_cad_SendCmd(u8x8, 0x040 | (((u8x8_tile_t *)arg_ptr)->y_pos) ); /* set Y address */ |
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ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; |
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c = ((u8x8_tile_t *)arg_ptr)->cnt; |
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c *= 8; |
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do |
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{ |
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if ( c + x > 84u ) |
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{ |
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if ( x >= 84u ) |
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break; |
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c = 84u; |
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c -= x; |
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} |
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u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */ |
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x += c; |
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arg_int--; |
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} while( arg_int > 0 ); |
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u8x8_cad_EndTransfer(u8x8); |
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break; |
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default: |
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return 0; |
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} |
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return 1; |
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} |
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