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: Inits/IST3020.cpp
- Revision:
- 1:ff019d22b275
- Parent:
- 0:75ec1b3cde17
- Child:
- 2:713844a55c4e
--- a/Inits/IST3020.cpp Thu Feb 12 22:22:47 2015 +0000 +++ b/Inits/IST3020.cpp Fri Feb 13 15:25:10 2015 +0000 @@ -18,8 +18,8 @@ BusEnable(true); init(); } -IST3020::IST3020(proto_t displayproto, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name) - : LCD(displayproto, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name) +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(); @@ -29,35 +29,35 @@ { /* Start Initial Sequence ----------------------------------------------------*/ - wr_cmd(0xE2); // sw reset + wr_cmd8(0xE2); // sw reset wait_ms(10); - wr_cmd(0xAE); // display off - wr_cmd(0xAB); // built-in OSC on - wr_cmd(0xA2); // bias voltage (1/9) - // wr_cmd(0xA3); // bias voltage (1/7) + 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_cmd(0xA0); // ADC select seg0-seg223 - //wr_cmd(0xA1); // ADC select seg223-seg0 - wr_cmd(0xC8); // SHL select com63-com0 - //wr_cmd(0xC0); // SHL select com0-com63 + 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_cmd(0x2C); // Internal Voltage Converter ON + wr_cmd8(0x2C); // Internal Voltage Converter ON wait_ms(10); - wr_cmd(0x2E); // Internal Voltage Regulator ON + wr_cmd8(0x2E); // Internal Voltage Regulator ON wait_ms(10); - wr_cmd(0x2F); // Internal Voltage Follower ON + wr_cmd8(0x2F); // Internal Voltage Follower ON wait_ms(10); - wr_cmd(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps + wr_cmd8(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps set_contrast(48); - //wr_cmd(0x81); // set contrast (reference voltage register set) - //wr_cmd(0x20); // contrast 00-3F default 20 + //wr_cmd8(0x81); // set contrast (reference voltage register set) + //wr_cmd8(0x20); // contrast 00-3F default 20 - wr_cmd(0xA4); // LCD display ram (EntireDisplayOn disable) - //wr_cmd(0x70); // External Capacitors Discharge function enable (should be enabled by default) - //wr_cmd(0x77); // External Capacitors Discharge function disable - wr_cmd(0x40); // start line = 0 - wr_cmd(0xA6); // display normal (1 = illuminated) - wr_cmd(0xAF); // display ON + 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 } \ No newline at end of file