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:
- 3:48f3282c2be8
- Parent:
- 2:713844a55c4e
- Child:
- 4:12ba0ecc2c1f
--- a/Inits/IST3020.cpp Fri Feb 13 23:17:55 2015 +0000 +++ b/Inits/IST3020.cpp Sat Feb 14 17:42:21 2015 +0000 @@ -1,6 +1,8 @@ #include "Protocols.h" #include "IST3020.h" +/*this is a quite standard config, should be compatible with ST7565, except bigger screen and diff resistor ratio value*/ + ////////////////////////////////////////////////////////////////////////////////// // display settings /////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////// @@ -32,6 +34,7 @@ locate(0,0); } // reset and init the lcd controller +// init sequence is manufacturer specific void IST3020::init() { /* Start Initial Sequence ----------------------------------------------------*/ @@ -56,7 +59,7 @@ 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); + set_contrast(46); //wr_cmd8(0x81); // set contrast (reference voltage register set) //wr_cmd8(0x20); // contrast 00-3F default 20