/* u8x8_d_st75256.c Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) Copyright (c) 2017, 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. 0x030 ext 00 0x031 ext 01 0x038 ext 10 0x039 ext 11 cad 011 */ #include "u8x8.h" /* function set, bit 2: power down, bit 3: MY, bit 4: MX, bit 5: must be 1 */ #define FS (0x020) /* not a real power down for the st75256... just a display off */ static const uint8_t u8x8_d_st75256_256x128_powersave0_seq[] = { U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0x94 ), /* sleep out */ U8X8_DLY(10), U8X8_C( 0xaf ), /* display on */ U8X8_END_TRANSFER(), /* disable chip */ U8X8_END() /* end of sequence */ }; static const uint8_t u8x8_d_st75256_256x128_powersave1_seq[] = { U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0xae ), /* display off */ U8X8_C( 0x95 ), /* sleep in */ U8X8_END_TRANSFER(), /* disable chip */ U8X8_END() /* end of sequence */ }; static uint8_t u8x8_d_st75256_256x128_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) { uint8_t x, c; uint8_t *ptr; switch(msg) { /* handled by the calling function case U8X8_MSG_DISPLAY_SETUP_MEMORY: u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st75256_256x128_display_info); break; */ /* handled by the calling function case U8X8_MSG_DISPLAY_INIT: u8x8_d_helper_display_init(u8x8); u8x8_cad_SendSequence(u8x8, u8x8_d_st75256_256x128_init_seq); break; */ case U8X8_MSG_DISPLAY_SET_POWER_SAVE: if ( arg_int == 0 ) u8x8_cad_SendSequence(u8x8, u8x8_d_st75256_256x128_powersave0_seq); else u8x8_cad_SendSequence(u8x8, u8x8_d_st75256_256x128_powersave1_seq); break; #ifdef U8X8_WITH_SET_CONTRAST case U8X8_MSG_DISPLAY_SET_CONTRAST: u8x8_cad_StartTransfer(u8x8); u8x8_cad_SendCmd(u8x8, 0x030 ); u8x8_cad_SendCmd(u8x8, 0x081 ); /* there are 9 bit for the volume control */ u8x8_cad_SendArg(u8x8, (arg_int & 0x1f)<<1 ); /* lower 6 bit */ u8x8_cad_SendArg(u8x8, (arg_int>>5)); /* upper 3 bit */ u8x8_cad_EndTransfer(u8x8); break; #endif case U8X8_MSG_DISPLAY_DRAW_TILE: u8x8_cad_StartTransfer(u8x8); x = ((u8x8_tile_t *)arg_ptr)->x_pos; x *= 8; x += u8x8->x_offset; u8x8_cad_SendCmd(u8x8, 0x030 ); /* select command set */ u8x8_cad_SendCmd(u8x8, 0x075 ); /* row */ u8x8_cad_SendArg(u8x8, (((u8x8_tile_t *)arg_ptr)->y_pos)); u8x8_cad_SendArg(u8x8, (((u8x8_tile_t *)arg_ptr)->y_pos)); u8x8_cad_SendCmd(u8x8, 0x015 ); /* col */ u8x8_cad_SendArg(u8x8, x); u8x8_cad_SendArg(u8x8, 255); u8x8_cad_SendCmd(u8x8, 0x05c ); do { c = ((u8x8_tile_t *)arg_ptr)->cnt; ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; /* SendData can not handle more than 255 bytes, treat c > 31 correctly */ if ( c > 31 ) { u8x8_cad_SendData(u8x8, 248, ptr); ptr+=248; c -= 31; } u8x8_cad_SendData(u8x8, c*8, ptr); arg_int--; } while( arg_int > 0 ); u8x8_cad_EndTransfer(u8x8); break; default: return 0; } return 1; } /*=============================================*/ static const u8x8_display_info_t u8x8_st75256_256x128_display_info = { /* chip_enable_level = */ 0, /* chip_disable_level = */ 1, /* post_chip_enable_wait_ns = */ 20, /* pre_chip_disable_wait_ns = */ 20, /* reset_pulse_width_ms = */ 5, /* post_reset_wait_ms = */ 5, /**/ /* sda_setup_time_ns = */ 20, /* */ /* sck_pulse_width_ns = */ 40, /* */ /* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */ /* spi_mode = */ 0, /* active high, rising edge */ /* i2c_bus_clock_100kHz = */ 4, /* 400KHz */ /* data_setup_time_ns = */ 15, /* write_pulse_width_ns = */ 70, /* tile_width = */ 32, /* tile_hight = */ 16, /* default_x_offset = */ 0, /* must be 0, because this is checked also for normal mode */ /* flipmode_x_offset = */ 0, /* pixel_width = */ 256, /* pixel_height = */ 128 }; static const uint8_t u8x8_d_st75256_256x128_init_seq[] = { U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0x094 ), /* sleep out */ U8X8_DLY(10), //U8X8_C( 0xae ), /* display off */ U8X8_C( 0x031 ), /* select 01 commands */ U8X8_C( 0x0d7 ), /* OTP Auto Read */ U8X8_A( 0x09f ), /* ... disable */ U8X8_C( 0x032 ), /* analog circuit set */ U8X8_A( 0x000 ), /* code example: OSC Frequency adjustment */ U8X8_A( 0x001 ), /* Frequency on booster capacitors 1 = 6KHz? */ U8X8_A( 0x000 ), /* Bias: 1: 1/13, 2: 1/12, 3: 1/11, 4:1/10, 5:1/9 */ U8X8_CA( 0x051, 0x0fb ), /* booster level x10 */ U8X8_C( 0x020 ), /* gray levels */ U8X8_A( 0x00 ), U8X8_A( 0x00 ), U8X8_A( 0x00 ), U8X8_A( 0x1f ), U8X8_A( 0x1f ), U8X8_A( 0x1f ), U8X8_A( 0x00 ), U8X8_A( 0x00 ), U8X8_A( 0x1f ), U8X8_A( 0x00 ), U8X8_A( 0x00 ), U8X8_A( 0x1f ), U8X8_A( 0x1f ), U8X8_A( 0x1f ), U8X8_A( 0x00 ), U8X8_A( 0x00 ), /* U8X8_A( 0x01 ), U8X8_A( 0x03 ), U8X8_A( 0x05 ), U8X8_A( 0x07 ), U8X8_A( 0x09 ), U8X8_A( 0x0b ), U8X8_A( 0x0d ), U8X8_A( 0x10 ), U8X8_A( 0x11 ), U8X8_A( 0x13 ), U8X8_A( 0x15 ), U8X8_A( 0x17 ), U8X8_A( 0x19 ), U8X8_A( 0x1b ), U8X8_A( 0x1d ), U8X8_A( 0x1f ), */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0xca ), /* display control, 3 args follow */ U8X8_A( 0x00 ), /* no clock division */ U8X8_A( 0x7f ), /* 1/128 duty value from the DS overview page*/ //U8X8_A( 0x9f ), /* 1/160 duty value from the DS example code */ U8X8_A( 0x00 ), /* nline off */ U8X8_CA( 0x0f0, 0x011 ), /* monochrome mode */ //U8X8_C( 0x76 ), /* ICON */ //U8X8_C( 0xd1 ), /* OSC on */ U8X8_CAA( 0x81, 0x36, 0x05 ), /* Volume control */ U8X8_CA( 0x020, 0x00b ), /* Power control: Regulator, follower & booster on */ U8X8_DLY(10), U8X8_CA( 0xbc, 0x00 ), /* data scan dir */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0xa6 ), /* normal display */ U8X8_C( 0x22 ), /* all pixel off mode */ U8X8_C( 0x031 ), /* select 01 commands */ U8X8_C( 0x040 ), /* internal power */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0xaf ), /* display on */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_CAA(0x75, 1, 2), /* row range */ U8X8_CAA(0x15, 0, 7), /* col range */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_C( 0x5c ), /* write data to RAM */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_A( 0xff ), /* */ U8X8_END_TRANSFER(), /* disable chip */ U8X8_END() /* end of sequence */ }; static const uint8_t u8x8_d_st75256_jlx12864_flip0_seq[] = { U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_END_TRANSFER(), /* disable chip */ U8X8_END() /* end of sequence */ }; static const uint8_t u8x8_d_st75256_jlx12864_flip1_seq[] = { U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ U8X8_C( 0x030 ), /* select 00 commands */ U8X8_END_TRANSFER(), /* disable chip */ U8X8_END() /* end of sequence */ }; uint8_t u8x8_d_st75256_jlx256128(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) { if ( u8x8_d_st75256_256x128_generic(u8x8, msg, arg_int, arg_ptr) != 0 ) return 1; if ( msg == U8X8_MSG_DISPLAY_SETUP_MEMORY ) { u8x8_SetI2CAddress(u8x8, 0x078); /* lowest I2C adr of the ST75256 */ u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st75256_256x128_display_info); return 1; } else if ( msg == U8X8_MSG_DISPLAY_INIT ) { u8x8_d_helper_display_init(u8x8); u8x8_cad_SendSequence(u8x8, u8x8_d_st75256_256x128_init_seq); for(;;) ; return 1; } else if ( msg == U8X8_MSG_DISPLAY_SET_FLIP_MODE ) { if ( arg_int == 0 ) { u8x8_cad_SendSequence(u8x8, u8x8_d_st75256_jlx12864_flip0_seq); u8x8->x_offset = u8x8->display_info->default_x_offset; } else { u8x8_cad_SendSequence(u8x8, u8x8_d_st75256_jlx12864_flip1_seq); u8x8->x_offset = u8x8->display_info->flipmode_x_offset; } return 1; } return 0; }