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issue #986

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kraus 2019-09-07 10:40:19 +02:00
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/*
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);
}