[参考译文] BQ76952EVM：DISCAHRGE 中的 BQ7695202短路无法正常工作

 // Configures all parameters in device RAM
// Enter CONFIGUPDATE mode (Subcommand 0x0090) - It is required to be in CONFIG_UPDATE mode to program the device RAM settings
// See TRM for full description of CONFIG_UPDATE mode
CommandSubcommands(SET_CFGUPDATE);

//FETOptions used for predischarge
BQ769x2_SetRegister(FETOptions, 0x0D, 1);//ENABLE BY DEFAULT AT VALUE 0x0D

//DA configuration
BQ769x2_SetRegister(DAConfiguration, 0X06, 1);//SET THE CURRENT RECEIVED IN 10ma units not the 1ma units
BQ769x2_SetRegister(CC3Samples, 0x32, 1);//32=50 sample of ncurrent at every 3ms...total time 150ms

//CCGain
BQ769x2_SetRegister(CCGain, 0x41745000, 4);//FOR 1milliOhm 2 parallel shunt(become .5milliOhm shunt)

// 'Power Config' - 0x9234 = 0x2D80
// Setting the DSLP_LDO bit allows the LDOs to remain active when the device goes into Deep Sleep mode
// Set wake speed bits to 00 for best performance
BQ769x2_SetRegister(PowerConfig, 0x2c80, 2);//for non sleep mode
// 'REG0 Config' - set REG0_EN bit to enable pre-regulator
BQ769x2_SetRegister(REG0Config, 0x01, 1);//BY DEFAULT IT IS 0X00//DISABLE
// 'REG12 Config' - Enable REG1 with 3.3V output (0x0D for 3.3V, 0x0F for 5V)
BQ769x2_SetRegister(REG12Config, 0x0D, 1);//BY DEFAULT IT IS 0X00//DISABLE

// Set DFETOFF pin to control DSG FET - 0x92FB = 0x02 (set to 0x00 to disable)
BQ769x2_SetRegister(DFETOFFPinConfig, 0x02, 1);

// Set CFETOFF pin to control CHG FET -  0x92FA = 0x02 (set to 0x00 to disable)
BQ769x2_SetRegister(CFETOFFPinConfig, 0x02, 1);

// Set TS1 to measure Cell Temperature & protection- 0x07
BQ769x2_SetRegister(TS1Config, 0x07, 1);

// Set TS2 to measure Cell Temperature & protection- 0x07
BQ769x2_SetRegister(TS2Config, 0x07, 1);

// Set TS3 to measure FET Temperature & protection - 0x0F
BQ769x2_SetRegister(TS3Config, 0x0F, 1);

// Set HDQ to measure Cell Temperature  & protection - 0x07
BQ769x2_SetRegister(HDQPinConfig, 0x07, 1);  // No thermistor installed on EVM HDQ pin, so set to 0x00

// Set DCHG measure Cell Temperature & protection - 0x07
BQ769x2_SetRegister(DCHGPinConfig, 0x07, 1);

// Set DDSG to measure Ambient Temperature & no protection - 0x0B
BQ769x2_SetRegister(DDSGPinConfig, 0x0B, 1);

// 'VCell Mode' - Enable 16 cells - 0x9304 = 0x0000; Writing 0x0000 sets the default of 16 cells
//we set 0x7fff for 15 cell. cell 15 & 16 are shorted
BQ769x2_SetRegister(VCellMode, 0x7fff, 2);

// Enable protections in 'Enabled Protections A' 0x9261 = 0xBC
// Enables SCD (short-circuit), OCD1 (over-current in discharge), OCC (over-current in charge),
// COV (over-voltage), CUV (under-voltage)
//SCD-OCD2-OCD1-OCC-COV-CUV-RSVD_0-RSVD_0
BQ769x2_SetRegister(EnabledProtectionsA, 0x80, 1);//set scd
BQ769x2_SetRegister(CHGFETProtectionsA, 0x80, 1);//off the charging fet in case of bq scd

// Enable all protections in 'Enabled Protections B' 0x9262 = 0xF7
// Enables OTF (over-temperature FET), OTINT (internal over-temperature), OTD (over-temperature in discharge),
// OTC (over-temperature in charge), UTINT (internal under-temperature), UTD (under-temperature in discharge), UTC (under-temperature in charge)
BQ769x2_SetRegister(EnabledProtectionsB, 0xA0, 1);//only bq ot(dicharging,fet ot) activate

// Enable all protections in 'Enabled Protections C' 0x9263 =0X00;
//enables Host Watchdog Fault(HWDF),precharge timeout(PTO),COV latch,CUV latch,SCD latch,OCD3 latch
//we are not using protection C
BQ769x2_SetRegister(EnabledProtectionsC, 0x02, 1);//enables Host Watchdog Fault(HWDF) to off the CHG/DSG FET
BQ769x2_SetRegister(CHGFETProtectionsC, 0x02, 1);//enables Host Watchdog Fault(HWDF) to off the CHG FET
BQ769x2_SetRegister(DSGFETProtectionsC, 0x02, 1);//enables Host Watchdog Fault(HWDF) to off the DSG FET
BQ769x2_SetRegister(HWDDelay, 60, 1);//delay in second//enables Host Watchdog Fault(HWDF) to off the DSG FET

// 'Default Alarm Mask' - 0x..82 Enables the FullScan and ADScan bits, default value = 0xF800
BQ769x2_SetRegister(DefaultAlarmMask, 0xF882, 2);

// Set up Cell Balancing Configuration - 0x9335 = 0x03   -  Automated balancing while in Relax or Charge modes
// Also see "Cell Balancing with BQ769x2 Battery Monitors" document on ti.com
BQ769x2_SetRegister(BalancingConfiguration, 0x0C, 1);//HOST CONTROLED CELL BALANCING

// Set up OTD (Overtemperature in DisCharge) Threshold - 0x929D
BQ769x2_SetRegister(OTDThreshold, BQOTDThreshold_Value, 1);//62 DEGREE CELCIUS

// Set up OTD (Overtemperature in DisCharge) Delay - 0x929E
BQ769x2_SetRegister(OTDDelay, BQOTDDelay_Value, 1);//1 SECOND

// Set up OTD (Overtemperature in DisCharge) Recovery - 0x929F
BQ769x2_SetRegister(OTDRecovery, BQOTDRecover_Value, 1);//55 DEGREE CELCIUS

// Set up OTF (Overtemperature in FET/PCB) Threshold - 0x92A0
BQ769x2_SetRegister(OTFThreshold, BQOTFThreshold_Value, 1);//90 DEGREE CELCIUS

// Set up OTF (Overtemperature in FET/PCB) Delay - 0x92A2
BQ769x2_SetRegister(OTFDelay, BQOTFDelay_Value, 1);//2 SECOND

// Set up OTF (Overtemperature in FET/PCB) Recovery - 0x92A2
BQ769x2_SetRegister(OTFRecovery, BQOTFRecover_Value, 1);//70 DEGREE CELCIUS

// Set up OCD2 Threshold - 0x9284 = 0x0A (20 mV = 20A across 1mOhm sense resistor) units of 2mV
//10mv=20A across 0.5mOhm sense resistor).multiplier is 2mv.So set value =5mv in register for 20 ampere.
//we set register value =15 for 60 ampere
BQ769x2_SetRegister(OCD2Threshold, BQOCD2Threshold_Remainder, 1);
BQ769x2_SetRegister(OCD2Delay, BQOCD2Delay_Remainder, 1);//value is 400ms.multiplier 3.3ms. register value 121
BQ769x2_SetRegister(OCDRecoveryThreshold, 0, 1);

// Set up SCD Threshold - 0x9286 = 0x05 (100 mV = 100A across 1mOhm sense resistor)  0x05=100mV
//0=10mv=20A,1=20mv=40A,2=40mv=80A across 0.5mOhm sense resistor).So set value =2 in register for 80 ampere.
//we set register value =2 for 80 ampere
BQ769x2_SetRegister(SCDThreshold, 2, 1);//40MV DROP//80 AMPERE

// Set up SCD Delay - 0x9287 = 0x03 (30 us) Enabled with a delay of (value - 1) * 15 µs; min value of 1    
BQ769x2_SetRegister(SCDDelay, 5, 1);//value is 100us.multiplier 15us. register value 8 with 15us offset

//SCDRecoveryTime in second
BQ769x2_SetRegister(SCDRecoveryTime, 5, 1);//5 SECOND

// Exit CONFIGUPDATE mode  - Subcommand 0x0092
CommandSubcommands(EXIT_CFGUPDATE);