Diff: mmSPI_RTOS.h

Revision:

0:7b8e6b90c874

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmSPI_RTOS.h	Tue Sep 17 20:40:03 2013 +0000
@@ -0,0 +1,76 @@
+#ifndef mmSPI_RTOS_H                            // include guard.
+#define mmSPI_RTOS_H                            // include guard.
+/*----------------------------------------------//------------------------------
+    student   : m-moore
+    email     : gated.clock@gmail.com
+    class     : embedded RTOS
+    directory : RTOS_project/mmSPI_RTOS
+    file      : mmSPI_RTOS.h
+    date      : september 19, 2013.
+----copyright-----------------------------------//------------------------------   
+    licensed for personal and academic use.
+    commercial use of original code must be approved by the account-holder of
+    gated.clock@gmail.com
+----description---------------------------------//------------------------------  
+    this library provides the low-level SPI data and clock signaling 
+    for communication with the altera development board, via four i/o
+    pins available on the mbed development board's zigbee header.  
+----notes---------------------------------------//------------------------------ 
+------------------------------------------------//----------------------------*/
+    #include "mbed.h"                           // standard mbed.org class.
+//---defines------------------------------------//------------------------------
+    #define mmSPI_RTOS_MOSI p29                 // SPI interface pin.
+    #define mmSPI_RTOS_MISO p30                 // SPI interface pin.
+    #define mmSPI_RTOS_SCLK p9                  // SPI interface pin.
+    #define mmCPU_CLK  p10                      // soft CPU system clock.
+//==============================================//==============================
+    class mmSPI_RTOS
+    {
+      public:
+                      mmSPI_RTOS();             // constructor.
+                     ~mmSPI_RTOS();             // destructor.
+        void          allocations();            // object allocations.       
+        
+        void          setSPIfrequency (float);  // initializations.
+        void          setSendBuffer   (char * pcSendBuffer);
+        void          setReceiveBuffer(char * pcReceiveBuffer);
+        void          setNumberOfBytes(int    dNumberOfBytes);
+
+                                                // SPI transceive loop.
+        void          transceive_vector(char cPreCPU, char cPreSPI, char cScan, char cPostCPU);       
+        
+                                                // write/read CPU registers.     
+        void          write_register    (char   cRegister, char cValue);
+        void          write_IR          (char   cValueH,   char cValueL);
+        char          read_register     (char   cRegister);
+        void          read_all_registers(char * pcRegisters);
+        
+                                                // write/read CPU main-memory.
+        void          write_memory(char cHData, char cLdata, char cAddress);
+        unsigned int  read_memory (char cAddress);
+        
+        void          step();                   // step the CPU.
+        
+        void          clear_transmit_vector();  // fill with 0.
+        
+        unsigned long SPIClockCount();          // return SPI clock count.
+        unsigned long CPUClockCount();          // return CPU clock count.      
+        
+      private:
+      
+      DigitalOut  * pMOSI;                      // SPI pin.
+      DigitalOut  * pMISO;                      // SPI pin.
+      DigitalOut  * pSCLK;                      // SPI pin.
+      DigitalOut  * pCPUclk;                    // soft cpu clock.
+      char        * pcSend;                     // SPI transmit vector.
+      char        * pcReceive;                  // SPI receive  vector.
+      float         fSPIfreq;                   // SPI clock   frequency.
+      float         fSPIquarterP;               // SPI quarter period.
+      int           dNumBytes;                  // number of SPI bytes.
+      int           dLoop01;                    // loop index.
+      int           dLoop02;                    // loop index.
+      unsigned long ulSPIclkCount;              // SPI clock count.
+      unsigned long ulCPUclkCount;              // CPU clock count.
+    };
+//----------------------------------------------//------------------------------
+#endif                                          // include guard.
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