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: Protocols/SPI16.h
- Revision:
- 11:b842b8e332cb
- Parent:
- 7:bb0383b91104
- Child:
- 20:14daa48ffd4c
diff -r 668cf78ff93a -r b842b8e332cb Protocols/SPI16.h --- a/Protocols/SPI16.h Thu Feb 19 00:33:27 2015 +0000 +++ b/Protocols/SPI16.h Fri Feb 20 21:32:25 2015 +0000 @@ -79,9 +79,10 @@ /** Read 16bit pixeldata from display controller (with dummy cycle) * + * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit * @returns 16bit color */ - virtual unsigned short rd_gram(); + virtual unsigned short rd_gram(bool convert); /** Read 4x8bit register data (with dummy cycle) * @param reg the register to read