Diff: SharpLCD.hpp

Revision:

1:ffc1d1d55581

Parent:

0:62d7cfac67ca

Child:

2:270ee57c0367

--- a/SharpLCD.hpp	Wed Jul 23 10:40:35 2014 +0000
+++ b/SharpLCD.hpp	Wed Jul 30 07:29:17 2014 +0000
@@ -15,6 +15,7 @@
  */
 
 #include "mbed.h"
+#include "core_cmInstr.h"
 #include "font.h"
 
 #ifndef __SHARP_LCD_HPP__
@@ -240,8 +241,8 @@
     };
 
 public:
-    SharpLCD(PinName _displayEnablePin, PinName mosi, PinName miso_unused, PinName sclk, PinName _unused=NC) :
-        displayEnable(_displayEnablePin), chipSelect(p8), spi(mosi, miso_unused, sclk, _unused) {
+    SharpLCD(PinName enable, PinName cs, PinName mosi, PinName miso_unused, PinName sclk, PinName _unused = NC) :
+        displayEnable(enable), chipSelect(cs), spi(mosi, miso_unused, sclk, _unused) {
         displayEnable = 0;
         chipSelect    = 0;
         spi.frequency(1000000);
@@ -279,7 +280,19 @@
     void clear(void);
 
     static uint8_t bitReverse8(uint8_t byte) {
-        return (uint8_t)(__RBIT(byte) >> 24);
+        #if (__CORTEX_M >= 0x03)
+            return (uint8_t)(__RBIT(byte) >> 24);
+        #else /* #if (__CORTEX_M < 0x03) */
+            uint8_t rev8 = 0;
+
+            for (unsigned i = 0; i < 8; i++) {
+                if (byte & (1 << i)) {
+                    rev8 |= 1 << (7 - i);
+                }
+            }
+
+            return rev8;
+        #endif /* #if (__CORTEX_M >= 0x03) */
     }
 
     /**