zaubentrucker/muele-marlin
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

Reduced u8glib SPI speed to fosc/8

Browse source 
Makes the lib compatible with most LCDs
This commit is contained in:
Dirk Eichel 2013-03-19 19:50:08 +01:00
parent ee8feb9dee
commit c28e71a1bf
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
ArduinoAddons/Arduino_0.xx/libraries/U8glib/utility/u8g_com_arduino_hw_spi.c
View file

@ -115,7 +115,7 @@ uint8_t u8g_com_arduino_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void
1 1 fclk/128
*/
SPCR = 0;
SPCR = (1<<SPE) | (1<<MSTR)|(0<<SPR1)|(0<<SPR0)|(0<<CPOL)|(0<<CPHA);
SPCR = (1<<SPE) | (1<<MSTR)|(0<<SPR1)|(1<<SPR0)|(0<<CPOL)|(0<<CPHA);
#ifdef U8G_HW_SPI_2X
SPSR = (1 << SPI2X); /* double speed, issue 89 */
#endif