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issue #493, timing issues with ks0108

This commit is contained in:
olikraus 2018-02-13 18:53:56 +01:00
parent 12bca5cb5b
commit 9dfadfcf88
3 changed files with 5 additions and 3 deletions
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3
ChangeLog
View File

@ -154,6 +154,7 @@ https://github.com/olikraus/u8g2 ChangeLog
* Support for SSD1322 NHD 128x64 (issue 412)
* Fixed profont17 (issue 438)
2017-xx-xx v2.21.xx olikraus@gmail.com
* Support for SH1107 (issue 501)
*

3
csrc/u8x8_byte.c
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@ -398,7 +398,8 @@ uint8_t u8x8_byte_sed1520(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_
u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->data_setup_time_ns);
u8x8_gpio_call(u8x8, enable_pin, 1);
u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->write_pulse_width_ns);
u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 200); /* KS0108 requires 450 ns, use 200 here */
u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->write_pulse_width_ns); /* expect 250 here */
u8x8_gpio_call(u8x8, enable_pin, 0);
}
break;

2
csrc/u8x8_d_ks0108.c
View File

@ -118,7 +118,7 @@ static const u8x8_display_info_t u8x8_ks0108_128x64_display_info =
/* spi_mode = */ 0, /* active high, rising edge */
/* i2c_bus_clock_100kHz = */ 4, /* KS0108: Not used */
/* data_setup_time_ns = */ 200,
/* write_pulse_width_ns = */ 200, /* KS0108: actially 450 ns */
/* write_pulse_width_ns = */ 250, /* KS0108: actially 450 ns, but additional 200 ns are added by the byte transfer function */
/* tile_width = */ 16, /* width of 16*8=128 pixel */
/* tile_hight = */ 8,
/* default_x_offset = */ 0,