Diff: LedPanel/LedPanel.cpp

Revision:

0:7d6abca457ee

diff -r 000000000000 -r 7d6abca457ee LedPanel/LedPanel.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LedPanel/LedPanel.cpp	Wed Dec 23 16:17:01 2015 +0000
@@ -0,0 +1,124 @@
+/**
+ *  Matrix16x16 LEDPanel library
+ *
+ *  @author  Junichi Katsu
+ *  @version 1.0
+ *  @date    02-April-2015
+ *
+ */
+ 
+#include "mbed.h"
+#include "LedPanel.h"
+#include "LedPanel_GFX.h"
+
+LedPanel::LedPanel(I2C *i2c): _i2c(i2c), LedPanel_GFX(16, 16)
+{
+	
+}
+
+void LedPanel::setBrightness(uint8_t b)
+{
+	if (b > 15) b = 15;
+	
+	uint8_t c = 0xE0 | b;
+	char foo[1];
+	
+	foo[0] = c;
+	
+	_i2c->write(i2c_addr[0], foo, 1); 
+	_i2c->write(i2c_addr[1], foo, 1); 
+}
+
+void LedPanel::blinkRate(uint8_t b)
+{
+	if (b > 3) b = 0;
+
+	uint8_t c = HT16K33_BLINK_CMD | HT16K33_BLINK_DISPLAYON | (b << 1);
+
+	char foo[1];
+	foo[0] = c;
+
+	_i2c->write(i2c_addr[0], foo, 1);
+	_i2c->write(i2c_addr[1], foo, 1);
+}
+
+void LedPanel::begin(uint8_t _addr0,uint8_t _addr1)
+{
+	i2c_addr[0] = _addr0 << 1;
+	i2c_addr[1] = _addr1 << 1;
+
+	char foo[1];
+	foo[0] = 0x21;
+
+	_i2c->write(i2c_addr[0], foo, 1);
+	_i2c->write(i2c_addr[1], foo, 1);
+
+	blinkRate(HT16K33_BLINK_OFF);
+
+	setBrightness(15);
+}
+
+void LedPanel::writeDisplay(void)
+{
+	char foo[2][17];
+	foo[0][0] = 0x00;
+	foo[1][0] = 0x00;
+
+	int j = 0;
+	for (uint8_t i=1; i<=16; i+=2)
+	{
+		for(uint8_t k=0; k < 2 ; k++)
+		{
+			int x = displaybuffer[j + k*8] & 0xFF;
+			foo[k][i] = x;
+			x = displaybuffer[j + k*8] >> 8;
+			foo[k][i+1] = x;
+		}
+		j++;
+	}
+	_i2c->write(i2c_addr[0], foo[0], 17);
+	_i2c->write(i2c_addr[1], foo[1], 17);
+}
+
+void LedPanel::clear(void)
+{
+	for (uint8_t i=0; i<16; i++)
+	{
+		displaybuffer[i] = 0;
+	}
+}
+
+void LedPanel::drawPixel(int16_t x, int16_t y, uint16_t color)
+{
+	if ((y < 0) || (y >= 16)) return;
+	if ((x < 0) || (x >= 16)) return;
+
+	if (color)
+	{
+		displaybuffer[y] |= 1 << x;
+	}
+	else
+	{
+		displaybuffer[y] &= ~(1 << x);
+	}
+}
+
+void LedPanel::Scroll(int16_t x, int16_t y)
+{
+	bool bit[16];
+	for (uint8_t i=0; i<16; i++)
+	{
+		bit[i] = false;
+		
+		if( (displaybuffer[i] & 0x8000) != 0 )
+		{
+			bit[i] = true;
+		}
+		displaybuffer[i] <<= 1;
+		
+		if( bit[i] == true )
+		{
+			displaybuffer[i] |= 1;
+		}
+	}
+}
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