Karl Zweimüller / LcdWindow

Fork of LCD-Window which works with Enhanced TextLCD from Wim

Fork of LcdWindow by Hendrik Lipka

Diff: lcd_spi.cpp

Revision:
1:65f72ed914fa
Parent:
0:ae5037e3d6e0
Child:
2:5ac5bab7daaf
--- a/lcd_spi.cpp	Mon Nov 15 22:37:30 2010 +0000
+++ b/lcd_spi.cpp	Tue Nov 16 20:49:18 2010 +0000
@@ -40,7 +40,7 @@
     _spi->frequency(100000);
 }
 
-void SPILCDBase::sendByte(unsigned char byte)
+void SPILCDBase::sendByte(const unsigned char byte)
 {
     _enable->write(0); // enable transfer
     wait_us(1);
@@ -49,7 +49,7 @@
     _enable->write(1);
 }
 
-void SPILCDBase::sendCmd(unsigned char cmd)
+void SPILCDBase::sendCmd(const unsigned char cmd)
 {
     _rs->write(0);
     wait_us(1);
@@ -58,7 +58,7 @@
     _rs->write(1);
 }
 
-void SPILCDBase::sendData(unsigned char cmd)
+void SPILCDBase::sendData(const unsigned char cmd)
 {
     _rs->write(1);
     wait_us(1);