Hexley Ball
Fork of David Smart's RA8875 library
Fork of
RA8875
by 
David Smart
Diff: RA8875.cpp
- Revision:
- 38:38d503b4fad6
- Parent:
- 37:f19b7e7449dc
- Child:
- 39:805cee56872d
--- a/RA8875.cpp Sat Jan 25 19:47:33 2014 +0000
+++ b/RA8875.cpp Sat Jan 25 21:18:03 2014 +0000
@@ -93,6 +93,24 @@
}
#endif
+RetCode_t RA8875::WriteCommandW(uint8_t command, uint16_t data)
+{
+ #if 1
+ WriteCommand(command, data & 0xFF);
+ WriteCommand(command+1, data >> 8);
+ #else
+ INFO("WriteCommandW(%02X, %04X)", command, data);
+ select(true);
+ spiwrite(0x80);
+ spiwrite(command);
+// spiwrite(0x00);
+ spiwrite(data & 0xFF);
+ spiwrite(data >> 8);
+ select(false);
+ #endif
+ return noerror;
+}
+
RetCode_t RA8875::WriteCommand(unsigned char command, unsigned int data)
{
select(true);
@@ -106,6 +124,16 @@
return noerror;
}
+RetCode_t RA8875::WriteDataW(uint16_t data)
+{
+ select(true);
+ spiwrite(0x00);
+ spiwrite(data & 0xFF);
+ spiwrite(data >> 8);
+ select(false);
+ return noerror;
+}
+
RetCode_t RA8875::WriteData(unsigned char data)
{
select(true);
@@ -174,12 +202,12 @@
return height() / fontheight();
}
-uint16_t RA8875::width(void)
+dim_t RA8875::width(void)
{
return (ReadCommand(0x14) + 1) * 8;
}
-uint16_t RA8875::height(void)
+dim_t RA8875::height(void)
{
return (ReadCommand(0x19) | (ReadCommand(0x1A) << 8)) + 1;
}
@@ -187,10 +215,8 @@
RetCode_t RA8875::SetTextCursor(loc_t x, loc_t y)
{
cursor_x = x; cursor_y = y; // for non-internal fonts
- WriteCommand(0x2A, x & 0xFF);
- WriteCommand(0x2B, x >> 8);
- WriteCommand(0x2C, y & 0xFF);
- WriteCommand(0x2D, y >> 8);
+ WriteCommandW(0x2A, x);
+ WriteCommandW(0x2C, y);
return noerror;
}
@@ -342,16 +368,14 @@
if (c == '\r') {
loc_t x;
x = ReadCommand(0x30) | (ReadCommand(0x31) << 8); // Left edge of active window
- WriteCommand(0x2A, x & 0xFF);
- WriteCommand(0x2B, x >> 8);
+ WriteCommandW(0x2A, x);
} else if (c == '\n') {
loc_t y;
y = ReadCommand(0x2C) | (ReadCommand(0x2D) << 8); // current y location
y += fontheight();
if (y > height()) // @TODO after bottom of active window, then scroll window?
y = 0;
- WriteCommand(0x2C, y & 0xFF);
- WriteCommand(0x2D, y >> 8);
+ WriteCommandW(0x2C, y);
} else {
WriteCommand(0x02); // RA8875 Internal Fonts
select(true);
@@ -378,8 +402,7 @@
RetCode_t RA8875::putp(color_t pixel)
{
- WriteData(pixel >> 8);
- WriteData(pixel & 0xFF);
+ WriteDataW((pixel>>8) | (pixel<<8));
return noerror;
}
@@ -422,24 +445,18 @@
RetCode_t RA8875::SetGraphicsCursor(loc_t x, loc_t y)
{
- WriteCommand(0x46, x & 0xFF);
- WriteCommand(0x47, x >> 8);
- WriteCommand(0x48, y & 0xFF);
- WriteCommand(0x49, y >> 8);
+ WriteCommandW(0x46, x);
+ WriteCommandW(0x48, y);
return noerror;
}
RetCode_t RA8875::window(loc_t x, loc_t y, dim_t width, dim_t height)
{
GraphicsDisplay::window(x,y, width,height);
- WriteCommand(0x30, x & 0xFF); // HSAW0
- WriteCommand(0x31, x >> 8); // HSAW1
- WriteCommand(0x32, y & 0xFF); // VSAW0
- WriteCommand(0x33, y >> 8); // VSAW1
- WriteCommand(0x34, (x+width-1) & 0xFF); // HEAW0
- WriteCommand(0x35, (x+width-1) >> 8); // HEAW1
- WriteCommand(0x36, (y+height-1) & 0xFF); // VEAW0
- WriteCommand(0x37, (y+height-1) >> 8); // VEAW1
+ WriteCommandW(0x30, x);
+ WriteCommandW(0x32, y);
+ WriteCommandW(0x34, (x+width-1));
+ WriteCommandW(0x36, (y+height-1));
SetGraphicsCursor(x,y);
return noerror;
}
@@ -478,9 +495,8 @@
color_t color = GetForeColor();
WriteCommand(0x40,0x00); // Graphics write mode
SetGraphicsCursor(x, y);
- WriteCommand(0x02); // start data write
- WriteData(color & 0xFF);
- WriteData(color >> 8);
+ WriteCommand(0x02);
+ WriteDataW(color);
ret = noerror;
REGISTERPERFORMANCE(PRF_DRAWPOINT);
return ret;
@@ -495,15 +511,10 @@
RetCode_t RA8875::line(loc_t x1, loc_t y1, loc_t x2, loc_t y2)
{
PERFORMANCE_RESET;
- WriteCommand(0x91, x1 & 0xFF);
- WriteCommand(0x92, x1 >> 8);
- WriteCommand(0x93, y1 & 0xFF);
- WriteCommand(0x94, y1 >> 8);
- WriteCommand(0x95, x2 & 0xFF);
- WriteCommand(0x96, x2 >> 8);
- WriteCommand(0x97, y2 & 0xFF);
- WriteCommand(0x98, y2 >> 8);
-
+ WriteCommandW(0x91, x1);
+ WriteCommandW(0x93, y1);
+ WriteCommandW(0x95, x2);
+ WriteCommandW(0x97, y2);
unsigned char drawCmd = 0x00; // Line
WriteCommand(0x90, drawCmd);
WriteCommand(0x90, 0x80 + drawCmd); // Start drawing.
@@ -537,15 +548,10 @@
} else if (y1 == y2) {
line(x1, y1, x2, y2);
} else {
- WriteCommand(0x91, x1 & 0xFF);
- WriteCommand(0x92, x1 >> 8);
- WriteCommand(0x93, y1 & 0xFF);
- WriteCommand(0x94, y1 >> 8);
- WriteCommand(0x95, x2 & 0xFF);
- WriteCommand(0x96, x2 >> 8);
- WriteCommand(0x97, y2 & 0xFF);
- WriteCommand(0x98, y2 >> 8);
-
+ WriteCommandW(0x91, x1);
+ WriteCommandW(0x93, y1);
+ WriteCommandW(0x95, x2);
+ WriteCommandW(0x97, y2);
unsigned char drawCmd = 0x10; // Rectangle
if (fillit == FILL)
drawCmd |= 0x20;
@@ -587,26 +593,15 @@
} else if (y1 == y2) {
line(x1, y1, x2, y2);
} else {
- WriteCommand(0x91, x1 & 0xFF);
- WriteCommand(0x92, x1 >> 8);
- WriteCommand(0x93, y1 & 0xFF);
- WriteCommand(0x94, y1 >> 8);
- WriteCommand(0x95, x2 & 0xFF);
- WriteCommand(0x96, x2 >> 8);
- WriteCommand(0x97, y2 & 0xFF);
- WriteCommand(0x98, y2 >> 8);
-
- WriteCommand(0xA1, radius1 & 0xFF);
- WriteCommand(0xA2, radius1 >> 8);
- WriteCommand(0xA3, radius2 & 0xFF);
- WriteCommand(0xA4, radius2 >> 8);
-
+ WriteCommandW(0x91, x1);
+ WriteCommandW(0x93, y1);
+ WriteCommandW(0x95, x2);
+ WriteCommandW(0x97, y2);
+ WriteCommandW(0xA1, radius1);
+ WriteCommandW(0xA3, radius2);
// Should not need this...
- WriteCommand(0xA5, 0 & 0xFF);
- WriteCommand(0xA6, 0 >> 8);
- WriteCommand(0xA7, 0 & 0xFF);
- WriteCommand(0xA8, 0 >> 8);
-
+ WriteCommandW(0xA5, 0);
+ WriteCommandW(0xA7, 0);
unsigned char drawCmd = 0x20; // Rounded Rectangle
if (fillit == FILL)
drawCmd |= 0x40;
@@ -649,21 +644,12 @@
if (x1 == x2 && y1 == y2 && x1 == x3 && y1 == y3) {
pixel(x1, y1);
} else {
- WriteCommand(0x91, x1 & 0xFF);
- WriteCommand(0x92, x1 >> 8);
- WriteCommand(0x93, y1 & 0xFF);
- WriteCommand(0x94, y1 >> 8);
-
- WriteCommand(0x95, x2 & 0xFF);
- WriteCommand(0x96, x2 >> 8);
- WriteCommand(0x97, y2 & 0xFF);
- WriteCommand(0x98, y2 >> 8);
-
- WriteCommand(0xA9, x3 & 0xFF);
- WriteCommand(0xAA, x3 >> 8);
- WriteCommand(0xAB, y3 & 0xFF);
- WriteCommand(0xAC, y3 >> 8);
-
+ WriteCommandW(0x91, x1);
+ WriteCommandW(0x93, y1);
+ WriteCommandW(0x95, x2);
+ WriteCommandW(0x97, y2);
+ WriteCommandW(0xA9, x3);
+ WriteCommandW(0xAB, y3);
unsigned char drawCmd = 0x01; // Triangle
if (fillit == FILL)
drawCmd |= 0x20;
@@ -700,12 +686,9 @@
} else if (radius == 1) {
pixel(x,y);
} else {
- WriteCommand(0x99, x & 0xFF);
- WriteCommand(0x9a, x >> 8);
- WriteCommand(0x9b, y & 0xFF);
- WriteCommand(0x9c, y >> 8);
+ WriteCommandW(0x99, x);
+ WriteCommandW(0x9B, y);
WriteCommand(0x9d, radius & 0xFF);
-
unsigned char drawCmd = 0x00; // Circle
if (fillit == FILL)
drawCmd |= 0x20;
@@ -740,15 +723,10 @@
} else if (radius1 == 1 && radius2 == 1) {
pixel(x, y);
} else {
- WriteCommand(0xA5, x & 0xFF);
- WriteCommand(0xA6, x >> 8);
- WriteCommand(0xA7, y & 0xFF);
- WriteCommand(0xA8, y >> 8);
- WriteCommand(0xA1, radius1 & 0xFF);
- WriteCommand(0xA2, radius1 >> 8);
- WriteCommand(0xA3, radius2 & 0xFF);
- WriteCommand(0xA4, radius2 >> 8);
-
+ WriteCommandW(0xA5, x);
+ WriteCommandW(0xA7, y);
+ WriteCommandW(0xA1, radius1);
+ WriteCommandW(0xA3, radius2);
unsigned char drawCmd = 0x00; // Ellipse
if (fillit == FILL)
drawCmd |= 0x40;
@@ -1048,7 +1026,7 @@
display.cls();
wait_ms(200);
display.puts(0,0, "RA8875 Backlight Test - Ramp up.");
- for (int i=0; i < 255; i++) {
+ for (int i=0; i <= 255; i++) {
unsigned int w = (ramptime * 1000)/ 256;
sprintf(buf, "%3d, %4d", i, w);
display.puts(100,100,buf);