diff -r 000000000000 -r 88d965579617 components/u8g2/csrc/u8x8_d_st7528.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/components/u8g2/csrc/u8x8_d_st7528.c Tue Oct 08 12:00:31 2019 +0200 @@ -0,0 +1,313 @@ +/* + + u8x8_d_st7528.c + + Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) + + Copyright (c) 2019, 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. + + ST7528: 16 Graylevel Controller + https://github.com/olikraus/u8g2/issues/986 + I2C Address: 0x03f (0x7e) + +*/ + + +#include "u8x8.h" + + +/* NHD C160100 */ +static const uint8_t u8x8_d_st7528_nhd_c160100_init_seq[] = { + + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + + +/* + I2C_out(0x48);//partial display duty ratio + I2C_out(0x64);// 1/100 duty + I2C_out(0xA0);//ADC select + I2C_out(0xC8);//SHL select + I2C_out(0x44);//initial Com0 register + I2C_out(0x00);//scan from Com0 + I2C_out(0xAB);//OSC on + I2C_out(0x26);// + I2C_out(0x81); //set electronic volume + I2C_out(0x15);//vopcode=0x1C + I2C_out(0x56);//set 1/11 bias + I2C_out(0x64);//3x + delay(2); + I2C_out(0x2C);// + I2C_out(0x66);//5x + delay(2); + I2C_out(0x2E);// + delay(2); + I2C_out(0x2F);//power control + I2C_out(0xF3);//bias save circuit + I2C_out(0x00);// + I2C_out(0x96);//frc and pwm + I2C_out(0x38);//external mode + I2C_out(0x75);// + I2C_out(0x97);//3frc, 45 pwm THIS IS A MODE0 CMD, IT IS USELESS HERE + I2C_out(0x80);//start 16-level grayscale settings +*/ + U8X8_CA(0x048, 0x064), /* partial display duty ratio, 1/100 duty*/ + U8X8_C(0x0a0), /* ADC */ + U8X8_C(0x0c8), /* SHL */ + U8X8_CA(0x044, 0x000), /* initial Com0 */ + U8X8_C(0x0ab), /* start oscillator */ + U8X8_C(0x026), /* Select the internal resistance ratio of the regulator resistor */ + U8X8_CA(0x081, 0x015), /* volumn */ + U8X8_C(0x056), /* LCD Bias */ + U8X8_C(0x064), /* DC DC step up */ + U8X8_DLY(2), + U8X8_C(0x02c), /* Power Control */ + U8X8_C(0x066), /* DC DC step up */ + U8X8_DLY(2), + U8X8_C(0x02e), /* Power Control */ + U8X8_DLY(2), + U8X8_C(0x02f), /* Power Control */ + U8X8_CA(0x0f3, 0x000), /* bias power save */ + U8X8_C(0x096), /* frc and pwm */ + + U8X8_CA(0x038, 0x075), /* ext mode 1*/ + + /* graylevel setup */ + U8X8_CA(0x80, 0x00), U8X8_CA(0x81, 0x00), U8X8_CA(0x82, 0x00), U8X8_CA(0x83, 0x00), + U8X8_CA(0x84, 0x06), U8X8_CA(0x85, 0x06), U8X8_CA(0x86, 0x06), U8X8_CA(0x87, 0x06), + U8X8_CA(0x88, 0x0b), U8X8_CA(0x89, 0x0b), U8X8_CA(0x8a, 0x0b), U8X8_CA(0x8b, 0x0b), + U8X8_CA(0x8c, 0x10), U8X8_CA(0x8d, 0x10), U8X8_CA(0x8e, 0x10), U8X8_CA(0x8f, 0x10), + + U8X8_CA(0x90, 0x15), U8X8_CA(0x91, 0x15), U8X8_CA(0x92, 0x15), U8X8_CA(0x93, 0x15), + U8X8_CA(0x94, 0x1a), U8X8_CA(0x95, 0x1a), U8X8_CA(0x96, 0x1a), U8X8_CA(0x97, 0x1a), + U8X8_CA(0x98, 0x1e), U8X8_CA(0x99, 0x1e), U8X8_CA(0x9a, 0x1e), U8X8_CA(0x9b, 0x1e), + U8X8_CA(0x9c, 0x23), U8X8_CA(0x9d, 0x23), U8X8_CA(0x9e, 0x23), U8X8_CA(0x9f, 0x23), + + U8X8_CA(0xa0, 0x27), U8X8_CA(0xa1, 0x27), U8X8_CA(0xa2, 0x27), U8X8_CA(0xa3, 0x27), + U8X8_CA(0xa4, 0x2b), U8X8_CA(0xa5, 0x2b), U8X8_CA(0xa6, 0x2b), U8X8_CA(0xa7, 0x2b), + U8X8_CA(0xa8, 0x2f), U8X8_CA(0xa9, 0x2f), U8X8_CA(0xaa, 0x2f), U8X8_CA(0xab, 0x2f), + U8X8_CA(0xac, 0x32), U8X8_CA(0xad, 0x32), U8X8_CA(0xae, 0x32), U8X8_CA(0xaf, 0x32), + + U8X8_CA(0xb0, 0x35), U8X8_CA(0xb1, 0x35), U8X8_CA(0xb2, 0x35), U8X8_CA(0xb3, 0x35), + U8X8_CA(0xb4, 0x38), U8X8_CA(0xb5, 0x38), U8X8_CA(0xb6, 0x38), U8X8_CA(0xb7, 0x38), + U8X8_CA(0xb8, 0x3a), U8X8_CA(0xb9, 0x3a), U8X8_CA(0xba, 0x3a), U8X8_CA(0xbb, 0x3a), + U8X8_CA(0xbc, 0x3c), U8X8_CA(0xbd, 0x3c), U8X8_CA(0xbe, 0x3c), U8X8_CA(0xbf, 0x3c), + + U8X8_CA(0x038, 0x074), /* ext mode 0*/ + + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + +static const uint8_t u8x8_d_st7528_powersave0_seq[] = { + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + U8X8_CA(0x038, 0x074), /* ext mode 0*/ + U8X8_C(0x0af), /* display on */ + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + +static const uint8_t u8x8_d_st7528_powersave1_seq[] = { + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + U8X8_CA(0x038, 0x074), /* ext mode 0*/ + U8X8_C(0x0ae), /* display off */ + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + +static const uint8_t u8x8_d_st7528_flip0_seq[] = { + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + +static const uint8_t u8x8_d_st7528_flip1_seq[] = { + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + + +/* + input: + one tile (8 Bytes) + output: + Tile for st7528 (32 Bytes) +*/ + +static uint8_t u8x8_st7528_8to32_dest_buf[32]; + +static uint8_t *u8x8_st7528_8to32(U8X8_UNUSED u8x8_t *u8x8, uint8_t *ptr) +{ + uint8_t v; + uint8_t a,b; + uint8_t i, j; + uint8_t *dest; + + for( j = 0; j < 4; j++ ) + { + dest = u8x8_st7528_8to32_dest_buf; + dest += j; + a =*ptr; + ptr++; + b = *ptr; + ptr++; + for( i = 0; i < 8; i++ ) + { + v = 0; + if ( a&1 ) v |= 0xf0; + if ( b&1 ) v |= 0x0f; + *dest = v; + dest+=4; + a >>= 1; + b >>= 1; + } + } + + return u8x8_st7528_8to32_dest_buf; +} + + + + +static uint8_t u8x8_d_st7528_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) +{ + uint8_t x, y, 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_st7528_display_info); + break; + */ + case U8X8_MSG_DISPLAY_INIT: + u8x8_d_helper_display_init(u8x8); + u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_nhd_c160100_init_seq); + break; + case U8X8_MSG_DISPLAY_SET_POWER_SAVE: + if ( arg_int == 0 ) + u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_powersave0_seq); + else + u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_powersave1_seq); + break; + case U8X8_MSG_DISPLAY_SET_FLIP_MODE: + if ( arg_int == 0 ) + { + u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_flip0_seq); + u8x8->x_offset = u8x8->display_info->default_x_offset; + } + else + { + u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_flip1_seq); + u8x8->x_offset = u8x8->display_info->flipmode_x_offset; + } + break; +#ifdef U8X8_WITH_SET_CONTRAST + case U8X8_MSG_DISPLAY_SET_CONTRAST: + u8x8_cad_StartTransfer(u8x8); + u8x8_cad_SendCmd(u8x8, 0x081 ); + u8x8_cad_SendArg(u8x8, arg_int ); /* ssd1326 has range from 0 to 255 */ + 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 *= 4; // not clear + + y = (((u8x8_tile_t *)arg_ptr)->y_pos); + + + + do + { + c = ((u8x8_tile_t *)arg_ptr)->cnt; + ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; + + do + { + u8x8_cad_SendCmd(u8x8, 0xb0 | y ); /* set page address */ + u8x8_cad_SendCmd(u8x8, 0x10| (x>>4) ); /* set col msb*/ + u8x8_cad_SendCmd(u8x8, 0x00| (x&15) ); /* set col lsb*/ + + u8x8_cad_SendData(u8x8, 32, u8x8_st7528_8to32(u8x8, ptr)); + + ptr += 8; + x += 4; + c--; + } while( c > 0 ); + + //x += 4; + arg_int--; + } while( arg_int > 0 ); + + u8x8_cad_EndTransfer(u8x8); + break; + default: + return 0; + } + return 1; +} + + +static const u8x8_display_info_t u8x8_st7528_160x100_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, /* st7528 */ + /* sck_pulse_width_ns = */ 25, /* st7528 */ + /* sck_clock_hz = */ 8000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */ + /* st7528 actually allows 20MHz according to the datasheet */ + /* spi_mode = */ 0, /* active high, rising edge */ + /* i2c_bus_clock_100kHz = */ 4, + /* data_setup_time_ns = */ 40, + /* write_pulse_width_ns = */ 80, /* st7528 */ + /* tile_width = */ 20, + /* tile_hight = */ 13, + /* default_x_offset = */ 0, /* x_offset is used as y offset for the ssd1326 */ + /* flipmode_x_offset = */ 0, /* x_offset is used as y offset for the ssd1326 */ + /* pixel_width = */ 160, + /* pixel_height = */ 100 +}; + +uint8_t u8x8_d_st7528_nhd_c160100(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) +{ + if ( msg == U8X8_MSG_DISPLAY_SETUP_MEMORY ) + { + u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7528_160x100_display_info); + return 1; + } + return u8x8_d_st7528_generic(u8x8, msg, arg_int, arg_ptr); +} + +