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issues #1159 and #1163

This commit is contained in:
kraus 2020-04-18 12:23:55 +02:00
parent 5acf0c652d
commit b4db6588b5
2 changed files with 143 additions and 2 deletions
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143
csrc/u8x8_d_st7567.c
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@ -624,7 +624,9 @@ static const uint8_t u8x8_st7567_64x32_init_seq[] = {
U8X8_DLY(50),
U8X8_C(0x024), /* v0 voltage resistor ratio, taken from issue 657 */
U8X8_CA(0x081, 0x080), /* set contrast, contrast value*/
U8X8_CA(0x081, 0x020), /* set contrast, contrast value*/
/* 18 Apr 2020: the value 0x080 does not make sense, only 6 bit are supported
for contrast, changed to 0x040 */
U8X8_C(0x0ae), /* display off */
U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
@ -710,6 +712,145 @@ uint8_t u8x8_d_st7567_64x32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *ar
return 1;
}
/*=====================================================*/
/* issue 1159, Lummax HEM6432-03 */
static const u8x8_display_info_t u8x8_st7567_hem6432_display_info =
{
/* chip_enable_level = */ 0,
/* chip_disable_level = */ 1,
/* post_chip_enable_wait_ns = */ 150, /* */
/* pre_chip_disable_wait_ns = */ 50, /* */
/* reset_pulse_width_ms = */ 1,
/* post_reset_wait_ms = */ 1,
/* sda_setup_time_ns = */ 50, /* */
/* sck_pulse_width_ns = */ 120, /* */
/* sck_clock_hz = */ 4000000UL, /* */
/* spi_mode = */ 0, /* active high, rising edge */
/* i2c_bus_clock_100kHz = */ 4,
/* data_setup_time_ns = */ 40, /* */
/* write_pulse_width_ns = */ 80, /* */
/* tile_width = */ 8,
/* tile_hight = */ 4,
/* default_x_offset = */ 36, /* issue 1159 */
/* flipmode_x_offset = */ 32, /* issue 1159 */
/* pixel_width = */ 64,
/* pixel_height = */ 32
};
static const uint8_t u8x8_st7567_hem6432_init_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0e2), /* soft reset */
U8X8_C(0x0ae), /* display off */
U8X8_C(0x040), /* set display start line to 0 */
U8X8_C(0x0a1), /* ADC */
U8X8_C(0x0c0), /* common output mode */
// Flipmode
//U8X8_C(0x0a0), /* ADC */
//U8X8_C(0x0c8), /* common output mode */
U8X8_C(0x0a6), /* display normal, bit val 0: LCD pixel off. */
U8X8_C(0x0a2), /* LCD bias 1/9 */
U8X8_C(0x028|4), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x028|6), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x028|7), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x024), /* v0 voltage resistor ratio, taken from issue 657 */
U8X8_CA(0x081, 225), /* set contrast, contrast value as suggested inissue 1159 */
U8X8_C(0x0ae), /* display off */
U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
uint8_t u8x8_d_st7567_hem6432(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint8_t x, c;
uint8_t *ptr;
switch(msg)
{
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7567_hem6432_display_info);
u8x8->i2c_address = 0x07e; /* issue 1159, use different i2c address */
break;
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_st7567_hem6432_init_seq);
break;
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
if ( arg_int == 0 )
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_powersave0_seq);
else
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_powersave1_seq);
break;
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
if ( arg_int == 0 )
{
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_flip0_seq);
u8x8->x_offset = u8x8->display_info->default_x_offset;
}
else
{
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_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 >> 2 ); /* st7567 has range from 0 to 63 */
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, 0x010 | (x>>4) );
u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15)));
u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos));
c = ((u8x8_tile_t *)arg_ptr)->cnt;
c *= 8;
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
/*
The following if condition checks the hardware limits of the st7567
controller: It is not allowed to write beyond the display limits.
This is in fact an issue within flip mode.
*/
if ( c + x > 132u )
{
c = 132u;
c -= x;
}
do
{
u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */
arg_int--;
} while( arg_int > 0 );
u8x8_cad_EndTransfer(u8x8);
break;
default:
return 0;
}
return 1;
}
/*=====================================================*/
/*

2
tools/release/print_release.sh
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@ -1,2 +1,2 @@
# without 'v' prefix
echo -n "2.28.0"
echo -n "2.28.1"