Diff: spi_master.h

Revision:

15:a88e0135e67e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spi_master.h	Thu Sep 21 09:16:14 2017 +0000
@@ -0,0 +1,84 @@
+/*
+
+Copyright (c) 2012-2014 RedBearLab
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the "Software"), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
+FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#ifndef _SPI_MASTER_H_
+#define _SPI_MASTER_H_
+
+#include "mbed.h"
+
+#define SPI_FREQUENCY_125K 0x02000000UL
+#define SPI_FREQUENCY_250K 0x04000000UL
+#define SPI_FREQUENCY_500K 0x08000000UL
+#define SPI_FREQUENCY_1M   0x10000000UL
+#define SPI_FREQUENCY_2M   0x20000000UL
+#define SPI_FREQUENCY_4M   0x40000000UL
+#define SPI_FREQUENCY_8M   0x80000000UL
+
+#define SPI_125K 0
+#define SPI_250K 1
+#define SPI_500K 2
+#define SPI_1M   3
+#define SPI_2M   4
+#define SPI_4M   5
+#define SPI_8M   6
+
+#define SPI_MODE0 0
+#define SPI_MODE1 1
+#define SPI_MODE2 2
+#define SPI_MODE3 3
+
+#define CS      P0_14
+#define SCK     P0_25
+#define MOSI    P0_20
+#define MISO    P0_22
+
+typedef enum{
+    
+    MSBFIRST = 0,
+    LSBFIRST = 1
+    
+}BitOrder;
+
+class SPIClass
+{
+    public:
+        SPIClass(NRF_SPI_Type *_spi);
+    
+        void begin();
+        void begin(uint32_t sck, uint32_t mosi, uint32_t miso);
+        uint8_t transfer(uint8_t data);
+        void endTransfer();
+            
+        void setSPIMode( uint8_t mode );
+        void setFrequency(uint8_t speed );
+        void setBitORDER( BitOrder  bit);
+        void setCPHA( bool trailing);
+        void setCPOL( bool active_low);
+        
+        
+    private:
+        NRF_SPI_Type *spi;
+        
+        uint32_t SCK_Pin;
+        uint32_t MOSI_Pin;
+        uint32_t MISO_Pin;
+
+};
+
+#endif