Added SPI burst mode to spi 8 bit.
Dependents: Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG
Fork of UniGraphic by
Added SPI burst mode to this graphics driver. If whoever wants this rolled in to repository let me know. I replaced _spi.write(); with fastWrite(); and clearRX();
SPI8.cpp
// need to re-create SPI firmware to access SPI handle static SPI_HandleTypeDef SpiHandle; void SPI8::fastWrite(int data) { SpiHandle.Instance = SPI1; // Check if data is transmitted while ((SpiHandle.Instance->SR & SPI_SR_TXE) == 0); SpiHandle.Instance->DR = data; } void SPI8::clearRX( void ) { SpiHandle.Instance = SPI1; //Check if the RX buffer is busy //While busy, keep checking while (SpiHandle.Instance->SR & SPI_SR_BSY){ // Check RX buffer readable while ((SpiHandle.Instance->SR & SPI_SR_RXNE) == 0); int dummy = SpiHandle.Instance->DR; } }
Diff: Display/TFT.cpp
- Revision:
- 2:713844a55c4e
- Child:
- 3:48f3282c2be8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Display/TFT.cpp Fri Feb 13 23:17:55 2015 +0000 @@ -0,0 +1,154 @@ +#include "TFT.h" + +//#include "mbed_debug.h" + +#define SWAP(a, b) { a ^= b; b ^= a; a ^= b; } + +TFT::TFT(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const char *name) + : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y) +{ + if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD); + useNOP=false; + set_orientation(0); + foreground(White); + background(Black); + set_auto_up(false); //we don't have framebuffer + mipistd=false; + // cls(); + // locate(0,0); +} +TFT::TFT(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const char *name) + : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y) +{ + if(displayproto==SPI_8) + { + proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC); + useNOP=false; + } + else if(displayproto==SPI_16) + { + proto = new SPI16(Hz, mosi, miso, sclk, CS, reset, DC); + useNOP=true; + } + // cls(); + set_orientation(0); + foreground(White); + background(Black); + set_auto_up(false); + mipistd=false; + // locate(0,0); +} +void TFT::wr_cmd8(unsigned char cmd) + { + if(useNOP) proto->wr_cmd16(cmd); // 0x0000|cmd, 00 is NOP cmd for TFT + else proto->wr_cmd8(cmd); + } +void TFT::wr_data8(unsigned char data) + { + proto->wr_data8(data); + } +void TFT::wr_data8(unsigned char data, unsigned int count) + { + proto->wr_data8(data, count); + } +void TFT::wr_data8buf(unsigned char* data, unsigned int lenght) + { + proto->wr_data8buf(data, lenght); + } +void TFT::wr_cmd16(unsigned short cmd) + { + proto->wr_cmd16(cmd); + } +void TFT::wr_data16(unsigned short data) + { + proto->wr_data16(data); + } +void TFT::wr_data16(unsigned short data, unsigned int count) + { + proto->wr_data16(data, count); + } +void TFT::wr_data16buf(unsigned short* data, unsigned int lenght) + { + proto->wr_data16buf(data, lenght); + } +void TFT::hw_reset() + { + proto->hw_reset(); + } +void TFT::BusEnable(bool enable) + { + proto->BusEnable(enable); + } +// color TFT can rotate in hw (swap raw<->columns) for landscape views +void TFT::set_orientation(int o) +{ + orientation = o; + wr_cmd8(0x36); + switch (orientation) { + case 0:// default, portrait view 0° + if(mipistd) wr_data8(0x0A); // this is in real a vertical flip enabled, seems most displays are vertical flipped + else wr_data8(0x48); //48 for 9341 + set_width(LCDSIZE_X); + set_height(LCDSIZE_Y); + break; + case 1:// landscape view +90° + if(mipistd) wr_data8(0x28); + else wr_data8(0x29);//28 for 9341 + set_width(LCDSIZE_Y); + set_height(LCDSIZE_X); + break; + case 2:// portrait view +180° + if(mipistd) wr_data8(0x09); + else wr_data8(0x99);//88 for 9341 + set_width(LCDSIZE_X); + set_height(LCDSIZE_Y); + break; + case 3:// landscape view -90° + if(mipistd) wr_data8(0x2B); + else wr_data8(0xF8);//E8 for 9341 + set_width(LCDSIZE_Y); + set_height(LCDSIZE_X); + break; + } +} +// TFT have both column and raw autoincrement inside a window, with internal counters +void TFT::window(int x, int y, int w, int h) +{ + //ili9486 does not like truncated 2A/2B cmds, at least in par mode + //setting only start column/page would speedup, but needs a windowmax() before, maybe implement later + wr_cmd8(0x2A); + wr_data16(x); //start column + wr_data16(x+w-1);//end column + + wr_cmd8(0x2B); + wr_data16(y); //start page + wr_data16(y+h-1);//end page + + wr_cmd8(0x2C); //write mem, just send pixels color next +} +//for TFT, just send data, position counters are in hw +void TFT::window_pushpixel(unsigned short color) +{ + proto->wr_data16(color); +} +void TFT::window_pushpixel(unsigned short color, unsigned int count) +{ + proto->wr_data16(color, count); +} +void TFT::window_pushpixelbuf(unsigned short* color, unsigned int lenght) + { + proto->wr_data16buf(color, lenght); + } +void TFT::pixel(int x, int y, unsigned short color) +{ + window(x,y,1,1); + wr_data16(color); // 2C expects 16bit parameters + //proto->wr_data16(color); +} +void TFT::cls (void) +{ + WindowMax(); + // wr_data16(_background,pixels); + wr_data16(0,LCDSIZE_X*LCDSIZE_Y); + //proto->wr_data16(_background,pixels); +} \ No newline at end of file