1-Wire® library for mbed. Complete 1-Wire library that supports our silicon masters along with a bit-bang master on the MAX32600MBED platform with one common interface for mbed. Slave support has also been included and more slaves will be added as time permits.
Dependents: MAXREFDES131_Qt_Demo MAX32630FTHR_iButton_uSD_Logger MAX32630FTHR_DS18B20_uSD_Logger MAXREFDES130_131_Demo ... more
Superseded by MaximInterface.
Diff: OneWire_Masters/DS2465/DS2465.hpp
- Revision:
- 21:00c94aeb533e
- Child:
- 24:8942d8478d68
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OneWire_Masters/DS2465/DS2465.hpp Mon Mar 21 14:12:28 2016 -0500 @@ -0,0 +1,136 @@ +#ifndef DS2465_H +#define DS2465_H + +#include "mbed.h" +#include "OneWire_Masters/OneWireMaster.h" +#include "OneWire_Masters/ISha256MacCoprocessor.hpp" + +class DS2465 : public OneWireMaster, public ISha256MacCoprocessor +{ +public: + enum Direction + { + DIRECTION_WRITE_ZERO = 0, + DIRECTION_WRITE_ONE = 1 + }; + + enum PageRegion + { + REGION_FULL_PAGE = 0x03, + REGION_FIRST_HALF = 0x01, + REGION_SECOND_HALF = 0x02 + }; + + enum OWConfigAddr + { + ADDR_TRSTL_REG = 0x68, + ADDR_TMSP_REG = 0x69, + ADDR_TW0L_REG = 0x6A, + ADDR_TREC0_REG = 0x6B, + ADDR_RWPU_REG = 0x6C, + ADDR_TW1L_REG = 0x6D + }; + + // DS2465 addresses + enum MemoryAddr + { + ADDR_SPAD = 0x00, + ADDR_CMD_REG = 0x60, + ADDR_STATUS_REG = 0x61, + ADDR_DATA_REG = 0x62, + ADDR_MAC_READ = 0x63, + ADDR_SHA_SELECT_REG = 0x66, + ADDR_WCFG_REG = 0x67, + ADDR_USER_MEM_PAGE_0 = 0x80, + ADDR_USER_MEM_PAGE_1 = 0xA0 + }; + + DS2465(I2C & I2C_interface, std::uint8_t I2C_address); + + // Const member functions should not change the settings of the DS2465 or affect the state of the 1-Wire bus. + // Read pointer, scratchpad, MAC output register, and command register on the DS2465 are considered mutable. + + //Misc. Functions + OneWireMaster::CmdResult Detect(void); + OneWireMaster::CmdResult Reset(void); // Resets DS2465 (NOTE: This is NOT a 1-Wire Reset) + + // DS2465 Memory Commands + OneWireMaster::CmdResult ReadMemory(std::uint8_t addr, std::uint8_t * buf, size_t bufLen, bool skip_set_pointer = false) const; + OneWireMaster::CmdResult WriteScratchpad(std::uint8_t addr, const std::uint8_t * buf, size_t bufLen) const; + OneWireMaster::CmdResult CopyScratchpad(bool dest_secret, unsigned int pageNum, bool notFull, unsigned int segmentNum); + + // DS2465 Configuration Commands + OneWireMaster::CmdResult ReadOneWireConfig(OWConfigAddr addr, std::uint8_t & config) const; + OneWireMaster::CmdResult WriteOneWireConfig(OWConfigAddr addr, unsigned int ovr, unsigned int std); + + // 1-Wire Master Commands + virtual OneWireMaster::CmdResult OWInitMaster(void); + virtual OneWireMaster::CmdResult OWReset(void); // Issues a 1-Wire Reset Pulse + virtual OneWireMaster::CmdResult OWWriteByte(uint8_t sendbyte); + virtual OneWireMaster::CmdResult OWReadByte(uint8_t & recvbyte); + virtual OneWireMaster::CmdResult OWTouchByte(uint8_t & sendrecvbyte); + virtual OneWireMaster::CmdResult OWTouchBit(uint8_t & sendrecvbit); + virtual OneWireMaster::CmdResult OWWriteBit(uint8_t sendbit); + virtual OneWireMaster::CmdResult OWReadBit(uint8_t & recvbit); + virtual OneWireMaster::CmdResult OWBlock(uint8_t *tran_buf, uint8_t tran_len); + virtual OneWireMaster::CmdResult OWFirst(RomId & romId); + virtual OneWireMaster::CmdResult OWNext(RomId & romId); + virtual OneWireMaster::CmdResult OWVerify(const RomId & romId); + virtual void OWTargetSetup(RomId & romId); + virtual void OWFamilySkipSetup(void); + virtual OneWireMaster::CmdResult OWSearch(RomId & romId); + virtual OneWireMaster::CmdResult OWReadROM(RomId & romId); + virtual OneWireMaster::CmdResult OWSkipROM(void); + virtual OneWireMaster::CmdResult OWMatchROM(const RomId & romId); + virtual OneWireMaster::CmdResult OWOverdriveSkipROM(void); + virtual OneWireMaster::CmdResult OWResume(void); + virtual OneWireMaster::CmdResult OWOverdriveMatchROM(const RomId & romId); + + // Extended 1-Wire functions + virtual OneWireMaster::CmdResult OWSpeed(OW_SPEED new_speed); + virtual OneWireMaster::CmdResult OWLevel(OW_LEVEL new_level); + virtual OneWireMaster::CmdResult OWWriteBytePower(uint8_t sendbyte); + virtual OneWireMaster::CmdResult OWReadBytePower(uint8_t & recvbyte); + virtual OneWireMaster::CmdResult OWReadBitPower(uint8_t applyPowerResponse); + virtual OneWireMaster::CmdResult OWWriteBlock(const uint8_t *tran_buf, uint8_t tran_len); + OneWireMaster::CmdResult OWWriteBlock(bool tx_mac, const uint8_t *tran_buf, uint8_t tran_len); + virtual OneWireMaster::CmdResult OWReadBlock(uint8_t *rx_buf, uint8_t rx_len); + OneWireMaster::CmdResult OWPowerDown(void); + OneWireMaster::CmdResult OWPowerUp(void); + OneWireMaster::CmdResult ConfigureAPU(bool apu_enable); + + OneWireMaster::CmdResult Triplet(Direction search_direction, uint8_t & status); + + //DS2465 Coprocessor Commands + OneWireMaster::CmdResult Compute_NextMasterSecret(bool swap, unsigned int pageNum, PageRegion region); + OneWireMaster::CmdResult Compute_WriteMAC(bool regwrite, bool swap, unsigned int pageNum, unsigned int segmentNum) const; + OneWireMaster::CmdResult Compute_SSecret(bool swap, unsigned int pageNum, PageRegion region); + OneWireMaster::CmdResult Compute_AuthMAC(bool swap, unsigned int pageNum, PageRegion region) const; + + virtual ISha256MacCoprocessor::CmdResult setMasterSecret(const std::uint8_t (&secret)[ISha256MacCoprocessor::secret_len]); + virtual ISha256MacCoprocessor::CmdResult ComputeAndRead_WriteMAC(const std::uint8_t (&WriteMAC_data)[WriteMAC_data_len], std::uint8_t (&mac)[mac_len]) const; + virtual ISha256MacCoprocessor::CmdResult ComputeAndRead_AuthMAC(const std::uint8_t (&devicePage)[devicePage_len], const std::uint8_t (&challenge)[deviceScratchpad_len], + const std::uint8_t (&AuthMAC_data)[AuthMAC_data_len], std::uint8_t (&mac)[mac_len]) const; + virtual ISha256MacCoprocessor::CmdResult Compute_SSecret(const std::uint8_t (&devicePage)[devicePage_len], + const std::uint8_t (&deviceScratchpad)[deviceScratchpad_len], const std::uint8_t (&SSecret_data)[SSecret_data_len]); + +private: + static const int POLL_LIMIT = 200; + + I2C & m_I2C_interface; + std::uint8_t m_I2C_address; + + std::uint8_t c1WS, cSPU, cPDN, cAPU; + bool short_detected; + + // Search state + std::uint8_t m_lastDiscrepancy; + std::uint8_t m_lastFamilyDiscrepancy; + std::uint8_t m_lastDeviceFlag; + + //DS2465 Configuration Commands + OneWireMaster::CmdResult Write_Config(uint8_t config); + OneWireMaster::CmdResult Write_Command_Reg(uint8_t cmd, uint8_t par, bool poll) const; +}; + +#endif