Diff: HT1632_LedMatrix.cpp

Revision:

4:7513dd37efed

Parent:

3:48f430fe186e

Child:

5:33b2bfce06b7

--- a/HT1632_LedMatrix.cpp	Fri Nov 09 16:33:53 2012 +0000
+++ b/HT1632_LedMatrix.cpp	Fri Nov 09 22:27:39 2012 +0000
@@ -101,7 +101,7 @@
     for( uint8_t i = 0; i < 4; i++ )
         ht1632_cs[i] = HIGH;
 
-    for (uint8_t chipno=0; chipno<numDevices; chipno++) {
+    for (uint8_t chipno=0; chipno<4; chipno++) {
         chipfree(chipno);     // unselect it
         sendcmd(chipno, HT1632_CMD_SYSDIS);  // Disable system
         sendcmd(chipno, HT1632_CMD_COMS10);  // 08*32, PMOS drivers
@@ -264,13 +264,13 @@
 }
 
 // Write a string at the position specified
+// x and y start from 0 and count number of pixels, 2nd row on a 2 row display is y=8
 void HT1632_LedMatrix::putString(int x, int y, char *str)
 {
     cursorX = x;
     cursorY = y;
     while( *str ) {
         putChar( cursorX, y, *str++ );
-        cursorX += 6;
     }
 }
 
@@ -396,7 +396,6 @@
 
     char bitval = 1<<(y&7);  // compute which bit will need set
 
-
     if (val) {  // Modify the shadow memory
         shadowram[shadowAddress +32*chipno] |= bitval;
     } else {
@@ -426,14 +425,23 @@
     cgram[charNum][numCols] = 0;
 }
 
-void HT1632_LedMatrix::scrollLeft(uint8_t numberCols)
+void HT1632_LedMatrix::scrollLeft(uint8_t numberCols, uint8_t lineNum )
 {
+
+    for (int i=0; i<xMax-numberCols; i++) {
+        shadowram[i]=shadowram[i+numberCols];
+    }
+    for (int i=xMax-numberCols; i<xMax; i++) {
+        shadowram[i]=0;
+    }
+/*
     for (int i=0; i<128-numberCols-1; i++) {
         shadowram[i]=shadowram[i+numberCols];
     }
     for (int i=128-numberCols; i<128; i++) {
         shadowram[i]=0;
     }
+*/
     cursorX -= numberCols;
     if (cursorX < 0 ) cursorX = 0;
 }