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lcd_hd44780: Minor change to timing delays 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-11-26 09:49:43 -05:00
parent fb485e862d
commit 43dfb3c9ad
1 changed files with 2 additions and 2 deletions
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4
src/lcd_hd44780.c
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@ -54,7 +54,7 @@ hd44780_xmit_bits(uint8_t toggle, struct gpio_out e, struct gpio_out d4
gpio_out_toggle(d6); gpio_out_toggle(d6);
if (toggle & 0x80) if (toggle & 0x80)
gpio_out_toggle(d7); gpio_out_toggle(d7);
ndelay(80); ndelay(230);
gpio_out_toggle(e); gpio_out_toggle(e);
} }
@ -65,7 +65,7 @@ hd44780_xmit_byte(struct hd44780 *h, uint8_t data)
struct gpio_out e = h->e, d4 = h->d4, d5 = h->d5, d6 = h->d6, d7 = h->d7; struct gpio_out e = h->e, d4 = h->d4, d5 = h->d5, d6 = h->d6, d7 = h->d7;
hd44780_xmit_bits(h->last ^ data, e, d4, d5, d6, d7); hd44780_xmit_bits(h->last ^ data, e, d4, d5, d6, d7);
h->last = data << 4; h->last = data << 4;
ndelay(500 - 80); ndelay(500 - 230);
hd44780_xmit_bits(data ^ h->last, e, d4, d5, d6, d7); hd44780_xmit_bits(data ^ h->last, e, d4, d5, d6, d7);
} }