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altos/driver: Document setting for AO_ST7565_BIAS
author
Keith Packard
<keithp@keithp.com>
Wed, 8 Mar 2023 23:53:03 +0000
(15:53 -0800)
committer
Keith Packard
<keithp@keithp.com>
Thu, 1 Feb 2024 01:50:19 +0000
(17:50 -0800)
Signed-off-by: Keith Packard <keithp@keithp.com>
src/drivers/ao_st7565.c
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diff --git
a/src/drivers/ao_st7565.c
b/src/drivers/ao_st7565.c
index e45db4d2c6e1440d880e4e225bce8c61e4fcb91b..24b94076737b4b048924783bed84668145dab259 100644
(file)
--- a/
src/drivers/ao_st7565.c
+++ b/
src/drivers/ao_st7565.c
@@
-97,6
+97,10
@@
ao_st7565_setup(void)
return;
setup_done = true;
ao_st7565_reset();
+ /*
+ * Should be set to one of AO_ST7565_LCD_BIAS_1_9 or
+ * AO_ST7565_LCD_BIAS_1_7
+ */
ao_st7565_instruction(AO_ST7565_BIAS);
ao_st7565_instruction(AO_ST7565_ADC_SELECT_NORMAL);