diff options
Diffstat (limited to 'Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h')
-rw-r--r-- | Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h | 59 |
1 files changed, 53 insertions, 6 deletions
diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h index 869e0e58b..967849abd 100644 --- a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h +++ b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.h @@ -56,21 +56,68 @@ #endif /* Macros: */ - /** Total number of allowable ISP programming speeds supported by the device. */ - #define TOTAL_ISP_PROGRAMMING_SPEEDS 7 - /** Low level device command to issue an extended FLASH address, for devices with other 128KB of FLASH. */ #define LOAD_EXTENDED_ADDRESS_CMD 0x4D + /** Macro to convert an ISP frequency to a number of timer clock cycles for the software SPI driver */ + #define TIMER_COMP(freq) ((((F_CPU / 8) / freq) / 2) - 1) + + /* External Variables: */ + extern bool HardwareSPIMode; + /* Function Prototypes: */ - uint8_t ISPTarget_GetSPIPrescalerMask(void); + void ISPTarget_Init(void); + void ISPTarget_ShutDown(void); + uint8_t ISPTarget_TransferSoftSPIByte(const uint8_t Byte); void ISPTarget_ChangeTargetResetLine(const bool ResetTarget); + uint8_t ISPTarget_WaitWhileTargetBusy(void); + void ISPTarget_LoadExtendedAddress(void); uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress, const uint8_t PollValue, const uint8_t DelayMS, const uint8_t ReadMemCommand); - uint8_t ISPTarget_WaitWhileTargetBusy(void); - void ISPTarget_LoadExtendedAddress(void); + + /* Inline Functions: */ + /** Sends a byte of ISP data to the attached target, using the appropriate SPI hardware or + * software routines depending on the selected ISP speed. + * + * \param[in] Byte Byte of data to send to the attached target + */ + static inline void ISPTarget_SendByte(const uint8_t Byte) + { + if (HardwareSPIMode) + SPI_SendByte(Byte); + else + ISPTarget_TransferSoftSPIByte(Byte); + } + + /** Receives a byte of ISP data from the attached target, using the appropriate + * SPI hardware or software routines depending on the selected ISP speed. + * + * \return Received byte of data from the attached target + */ + static inline uint8_t ISPTarget_ReceiveByte(void) + { + if (HardwareSPIMode) + return SPI_ReceiveByte(); + else + return ISPTarget_TransferSoftSPIByte(0x00); + } + + /** Sends and receives a byte of ISP data to and from the attached target, using the + * appropriate SPI hardware or software routines depending on the selected ISP speed. + * + * \param[in] Byte Byte of data to send to the attached target + * + * \return Received byte of data from the attached target + */ + static inline uint8_t ISPTarget_TransferByte(const uint8_t Byte) + { + if (HardwareSPIMode) + return SPI_TransferByte(Byte); + else + return ISPTarget_TransferSoftSPIByte(Byte); + } #endif |