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Update ultralcd_st7920_u8glib_rrd.h

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This commit is contained in:
chris-bo 2015-03-14 14:31:00 +01:00
parent 901c3c5392
commit b73ba26b23
1 changed files with 6 additions and 0 deletions
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6
Marlin/ultralcd_st7920_u8glib_rrd.h
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@ -27,9 +27,15 @@ static void ST7920_SWSPI_SND_8BIT(uint8_t val)
for( i=0; i<8; i++ )
{
WRITE(ST7920_CLK_PIN,0);
#if F_CPU == 20000000
__asm__("nop\n\t");
#endif
WRITE(ST7920_DAT_PIN,val&0x80);
val<<=1;
WRITE(ST7920_CLK_PIN,1);
#if F_CPU == 20000000
__asm__("nop\n\t""nop\n\t");
#endif
}
}