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:
- 28:2b562717a864
- Parent:
- 20:14daa48ffd4c
diff -r acb2594b8aa4 -r 2b562717a864 Protocols/SPI16.h --- a/Protocols/SPI16.h Mon Oct 26 12:49:02 2015 +0000 +++ b/Protocols/SPI16.h Sat Nov 28 17:54:09 2015 +0000 @@ -1,6 +1,8 @@ #ifndef SPI16_H #define SPI16_H +#define NDEBUG // avoid MBED_ASSERT to halt process when PinName DC==NC + #include "mbed.h" #include "Protocols.h" //#include "GraphicsDisplay.h"