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/UC1608.h
- Revision:
- 1:ff019d22b275
- Parent:
- 0:75ec1b3cde17
- Child:
- 9:1749ae993cfe
diff -r 75ec1b3cde17 -r ff019d22b275 Inits/UC1608.h --- a/Inits/UC1608.h Thu Feb 12 22:22:47 2015 +0000 +++ b/Inits/UC1608.h Fri Feb 13 15:25:10 2015 +0000 @@ -14,8 +14,8 @@ public: - /** Create a PAR_8 display interface - * @param displayproto PAR_8 or PAR_16 + /** Create a PAR display interface + * @param displayproto only supports PAR_8 * @param port GPIO port name to use * @param CS pin connected to CS of display * @param reset pin connected to RESET of display @@ -26,8 +26,9 @@ */ UC1608(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name); - /** Create an SPI_8 display interface - * @param displayproto SPI_8 or SPI_16 + /** Create an SPI display interface + * @param displayproto only supports SPI_8 + * @param Hz SPI speed in Hz * @param mosi SPI pin * @param miso SPI pin * @param sclk SPI pin @@ -36,7 +37,7 @@ * @param DC pin connected to data/command of display * @param name The name used by the parent class to access the interface */ - UC1608(proto_t displayproto, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char* name); + UC1608(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char* name); /** set the contrast of the screen * @note here overrided because of not standard command