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; } }
Inits/IST3020.cpp
- Committer:
- Geremia
- Date:
- 2015-02-13
- Revision:
- 1:ff019d22b275
- Parent:
- 0:75ec1b3cde17
- Child:
- 2:713844a55c4e
File content as of revision 1:ff019d22b275:
#include "Protocols.h" #include "IST3020.h" ////////////////////////////////////////////////////////////////////////////////// // display settings /////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// #define IC_X_SEGS 256 // IST3020 SEG has range 0-255 (255-0 if ADC=1), check your datasheet, important for the orientation #define IC_Y_COMS 64 // IST3020 COM has range 0-63 (63-0 if SHL=1), check your datasheet, important for the orientation #define LCDSIZE_X 192 // display X pixels, IST3020 is advertised as 224x65 but display size could be smaller #define LCDSIZE_Y 64 // display Y pixels, the 65th is for accessing "icons" IST3020::IST3020(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name) : LCD(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name) { hw_reset(); BusEnable(true); init(); } IST3020::IST3020(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name) : LCD(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name) { hw_reset(); init(); } // reset and init the lcd controller void IST3020::init() { /* Start Initial Sequence ----------------------------------------------------*/ wr_cmd8(0xE2); // sw reset wait_ms(10); wr_cmd8(0xAE); // display off wr_cmd8(0xAB); // built-in OSC on wr_cmd8(0xA2); // bias voltage (1/9) // wr_cmd8(0xA3); // bias voltage (1/7) wr_cmd8(0xA0); // ADC select seg0-seg223 //wr_cmd8(0xA1); // ADC select seg223-seg0 wr_cmd8(0xC8); // SHL select com63-com0 //wr_cmd8(0xC0); // SHL select com0-com63 wr_cmd8(0x2C); // Internal Voltage Converter ON wait_ms(10); wr_cmd8(0x2E); // Internal Voltage Regulator ON wait_ms(10); wr_cmd8(0x2F); // Internal Voltage Follower ON wait_ms(10); wr_cmd8(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps set_contrast(48); //wr_cmd8(0x81); // set contrast (reference voltage register set) //wr_cmd8(0x20); // contrast 00-3F default 20 wr_cmd8(0xA4); // LCD display ram (EntireDisplayOn disable) //wr_cmd8(0x70); // External Capacitors Discharge function enable (should be enabled by default) //wr_cmd8(0x77); // External Capacitors Discharge function disable wr_cmd8(0x40); // start line = 0 wr_cmd8(0xA6); // display normal (1 = illuminated) wr_cmd8(0xAF); // display ON }