SPI library used to communicate with an altera development board attached to four zigbee-header pins.
Diff: mmSPI.h
- Revision:
- 32:5a5d9525c6c4
- Parent:
- 31:ea7b25e494b5
- Child:
- 34:d5553509f31a
diff -r ea7b25e494b5 -r 5a5d9525c6c4 mmSPI.h --- a/mmSPI.h Sun Aug 25 20:12:32 2013 +0000 +++ b/mmSPI.h Mon Aug 26 22:39:44 2013 +0000 @@ -2,15 +2,16 @@ #define mmSPI_H // include guard. /*----------------------------------------------//------------------------------ student : m-moore - class : external SPI interface + email : gated.clock@gmail.com + class : usb device drivers directory : mmSPI file : mmSPI.h + date : september 3, 2013. ----description---------------------------------//------------------------------ ----notes---------------------------------------//------------------------------ 1. the SPI interface pins are routed to the zigbee header. ------------------------------------------------//----------------------------*/ #include "mbed.h" // standard mbed.org class. - #include "C12832_lcd.h" // LCD. //---defines------------------------------------//------------------------------ #define mmSPI_MOSI p29 // SPI interface pin. #define mmSPI_MISO p30 // SPI interface pin. @@ -23,41 +24,48 @@ class mmSPI { public: - mmSPI(); // constructor. - ~mmSPI(); // destructor. - void allocations(); // object allocations. - void setSPIfrequency (float); // initializations. - void setSendBuffer (char * pcSendBuffer); - void setReceiveBuffer(char * pcReceiveBuffer); - void setNumberOfBytes(int dNumberOfBytes); + mmSPI(); // constructor. + ~mmSPI(); // 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); + void transceive_vector(char cPreCPU, char cPreSPI, char cScan, char cPostCPU); // write/read CPU registers. - void write_register(char cRegister, char cValue); - char read_register (char cRegister); + void write_register(char cRegister, char cValue); + char read_register (char cRegister); + // write/read CPU main-memory. - void write_memory(char cHData, char cLdata, char cAddress); - unsigned int read_memory (char cAddress); + void write_memory(char cHData, char cLdata, char cAddress); + unsigned int read_memory (char cAddress); + + void step(); // step the CPU. - void step(); // step the CPU. + void clear_transmit_vector(); // fill with 0. - 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. + 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. \ No newline at end of file