Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.
Dependents: testUniGraphic_150217 maze_TFT_MMA8451Q TFT_test_frdm-kl25z TFT_test_NUCLEO-F411RE ... more
Diff: Protocols/SPI16.cpp
- Revision:
- 11:b842b8e332cb
- Parent:
- 7:bb0383b91104
- Child:
- 20:14daa48ffd4c
--- a/Protocols/SPI16.cpp Thu Feb 19 00:33:27 2015 +0000 +++ b/Protocols/SPI16.cpp Fri Feb 20 21:32:25 2015 +0000 @@ -121,7 +121,7 @@ _CS = 1; #endif } -unsigned short SPI16::rd_gram() +unsigned short SPI16::rd_gram(bool convert) { #ifdef USE_CS _CS = 0; @@ -131,13 +131,17 @@ r |= _spi.write(0); // 16bit, whole first byte is dummy, second is red r <<= 16; r |= _spi.write(0); + if(convert) + { + // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit + // during reading, you read the raw 18bit gram + r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit + } + else r >>= 8; _CS = 1; // force CS HIG to interupt the "read state" #ifndef USE_CS //if CS is not used, force fixed LOW again _CS = 0; #endif - // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit - // during reading, you read the raw 18bit gram - r = RGB18to16((r&0xFC0000)>>16, (r&0xFC00)>>8, r&0xFC);// 18bit pixel, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit return (unsigned short)r; } unsigned int SPI16::rd_reg_data32(unsigned char reg)