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.
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Diff: Protocols/SPI16.cpp
- Revision:
- 5:b222a9461d6b
- Parent:
- 4:12ba0ecc2c1f
- Child:
- 7:bb0383b91104
diff -r 12ba0ecc2c1f -r b222a9461d6b Protocols/SPI16.cpp --- a/Protocols/SPI16.cpp Sun Feb 15 20:06:07 2015 +0000 +++ b/Protocols/SPI16.cpp Mon Feb 16 00:52:24 2015 +0000 @@ -121,6 +121,45 @@ _CS = 1; #endif } +unsigned int SPI16::rd_data32_wdummy() +{ +#ifdef USE_CS + _CS = 0; +#endif + unsigned int r=0; + _DC.write(1);; // 1=data + + r |= _spi.write(0); // we get only 15bit valid, first bit was the dummy cycle + r <<= 16; + r |= _spi.write(0); + r <<= 1; // 32bits are aligned, now collecting bit_0 + r |= (_spi.write(0) >> 15); + // we clocked 15 more bit so ILI waiting for 16th, we need to reset spi bus + _CS = 1; // force CS HIG to interupt the cmd +#ifndef USE_CS //if CS is not used, force fixed LOW again + _CS = 0; +#endif + return r; +} +unsigned short SPI16::rd_gram() +{ +#ifdef USE_CS + _CS = 0; +#endif + unsigned int r=0; + _DC.write(1); // 1=data + r |= _spi.write(0); // 16bit, whole first byte is dummy, second is red + r <<= 16; + r |= _spi.write(0); +_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; +} void SPI16::hw_reset() { wait_ms(15);