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Why UCD9240 doesn't work?

Xiang Chao
Intellectual 360 points
Other Parts Discussed in Thread: UCD9240

On my board, I have a UCD9240, which controls 2 PTD08A020WAD (rail 1 and rail 2) and 1 PTD08A010WAD (rail 3).
In the digital power designer, I configure UCD9240 as following:
1. rail 1 1.0v, rail 2 2.5V, rail 3 2.5V
2. ON_OFF_CONFIG : always converting
3. OV, UV and OC response : continue without interruption

From digital power designer, I exported the configuration to a file. Then I used a MCU to program UCD9240 with the commands in the file (>200 commands).

My problem is :
After power on, there is no pwm output for any one of the modules. Hence all the modules' outputs are 0V.

The configuration of UCD9240 can be read out and verified and it looks allright. The INH of the modules are all tied to 3.3V.
There are no pull-up resisters for SCL and SDA on the board (they are populated on my adaptor board).

So, please tell me what goes wrong. Thanks.

  • 0
    Intellectual 360 points

    Through the PMBus, I can read the status of UCD9240.

    VOUT_STATUS : 0

    READ_VOUT : 0x3801, which is almost 0V

    PHASE_ENABLE : 0x01

    To avoid UCD9240 turn off the converter inadvertently, I also turn of OT protection.

    Here is the exported .csv file:

    Comment,Format=CSV; Hex=CoderUpper; BreakOutBytes=False; PEC=False [DO NOT REMOVE THIS LINE IF YOU WANT TO IMPORT USING A FUSION TOOL]
    Comment,"For reads, the last field is what is expected back from the device"
    Comment,Write PHASE_INFO [MFR 02] Rail #1: 1 Phase: 1A; Rail #2: 1 Phase: 2A; Rail #3: 1 Phase: 3A; Rail #4: Not Configured
    I2CWrite,0x58D20401041000
    Comment,"I2CRead @ address 2C, cmd D2 should return 0x01041000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write GPIO_SEQ_CONFIG [MFR 35] Input Pins: <None> | Output Pins: Pin 15 FLT-1A ActiveLow ActivelyDrivenOutput Regulating Rail #1,Pin 17 FLT-2A ActiveLow ActivelyDrivenOutput Regulating Rail #2,Pin 29 FLT-3A ActiveLow ActivelyDrivenOutput Regulating Rail #3,Pin 49 POWER_GOOD ActiveHigh ActivelyDrivenOutput POWER_GOOD | Dep: <None> | Fault Slaves: <None>"
    I2CWrite,0x58F31D00000000111214200000000000000000021222C6000000000000000000
    Comment,"I2CRead @ address 2C, cmd F3 should return 0x00000000111214200000000000000000021222C6000000000000000000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write FREQUENCY_SWITCH [Rail #1] 499.9 kHz
    I2CWrite,0x580000
    Comment,"I2CRead @ address 2C, cmd 00 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x5833E8FB
    Comment,"I2CRead @ address 2C, cmd 33 should return 0xE8FB [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write FREQUENCY_SWITCH [Rail #2] 499.9 kHz
    I2CWrite,0x580001
    Comment,"I2CRead @ address 2C, cmd 00 should return 0x01 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x5833E8FB
    Comment,"I2CRead @ address 2C, cmd 33 should return 0xE8FB [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write FREQUENCY_SWITCH [Rail #3] 500.0 kHz
    I2CWrite,0x580002
    Comment,"I2CRead @ address 2C, cmd 00 should return 0x02 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x5833E8FB
    Comment,"I2CRead @ address 2C, cmd 33 should return 0xE8FB [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Execute STORE_DEFAULT_ALL
    I2CWrite,0x5811
    Pause,1000,"Pausing 1,000.00 ms for STORE_DEFAULT_ALL hold time"
    Comment,Execute STORE_DEFAULT_ALL
    I2CWrite,0x5811
    Pause,1000,"Pausing 1,000.00 ms for STORE_DEFAULT_ALL hold time"
    Comment,Execute SOFT_RESET [MFR 11]
    I2CWrite,0x58DB
    Pause,2000,"Pausing 2,000.00 ms for Reset device and wait for it to come back online"
    Comment,Write FAN_COMMAND_1 0.0 %
    I2CWrite,0x583B0000
    Comment,"I2CRead @ address 2C, cmd 3B should return 0x0000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write FAN_CONFIG_1_2 Fan #1: Installed=False, Mode=DutyCycle, PPR=1; Fan #2: Installed=False, Mode=DutyCycle, PPR=1"
    I2CWrite,0x583A00
    Comment,"I2CRead @ address 2C, cmd 3A should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write FAN_SPEED_FAULT_LIMIT [MFR 24] 0 RPM
    I2CWrite,0x58E80080
    Comment,"I2CRead @ address 2C, cmd E8 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IIN_SCALE_MONITOR [MFR 12] 0.000 ohm
    I2CWrite,0x58DC0080
    Comment,"I2CRead @ address 2C, cmd DC should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MFR_DATE 110307
    I2CWrite,0x589D06313130333037
    Comment,"I2CRead @ address 2C, cmd 9D should return 0x313130333037 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MFR_ID TALENT TEK
    I2CWrite,0x58990A54414C454E542054454B
    Comment,"I2CRead @ address 2C, cmd 99 should return 0x54414C454E542054454B [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MFR_LOCATION CHENGDU
    I2CWrite,0x589C074348454E474455
    Comment,"I2CRead @ address 2C, cmd 9C should return 0x4348454E474455 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MFR_MODEL 0100
    I2CWrite,0x589A0430313030
    Comment,"I2CRead @ address 2C, cmd 9A should return 0x30313030 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MFR_REVISION 0010
    I2CWrite,0x589B0430303130
    Comment,"I2CRead @ address 2C, cmd 9B should return 0x30303130 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MFR_SERIAL 000001
    I2CWrite,0x589E06303030303031
    Comment,"I2CRead @ address 2C, cmd 9E should return 0x303030303031 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write SECURITY_BIT_MASK [MFR 36] 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
    I2CWrite,0x58F4200000000000000000000000000000000000000000000000000000000000000000
    Comment,"I2CRead @ address 2C, cmd F4 should return 0x0000000000000000000000000000000000000000000000000000000000000000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write SYNC_IN_OUT [MFR 17] No Slaves; Master: None
    I2CWrite,0x58E100FF
    Comment,"I2CRead @ address 2C, cmd E1 should return 0x00FF [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_OFF 5.000 V
    I2CWrite,0x583680CA
    Comment,"I2CRead @ address 2C, cmd 36 should return 0x80CA [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_ON 8.000 V
    I2CWrite,0x58350800
    Comment,"I2CRead @ address 2C, cmd 35 should return 0x0800 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_OV_FAULT_LIMIT 15.500 V
    I2CWrite,0x5855E0D3
    Comment,"I2CRead @ address 2C, cmd 55 should return 0xE0D3 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write VIN_OV_FAULT_RESPONSE Response=0,Restart=0,Delay=0"
    I2CWrite,0x585600
    Comment,"I2CRead @ address 2C, cmd 56 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_OV_WARN_LIMIT 15.000 V
    I2CWrite,0x5857C0D3
    Comment,"I2CRead @ address 2C, cmd 57 should return 0xC0D3 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_SCALE [MFR 03] 0.200
    I2CWrite,0x58D333A3
    Comment,"I2CRead @ address 2C, cmd D3 should return 0x33A3 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_UV_FAULT_LIMIT 5.500 V
    I2CWrite,0x5859C0CA
    Comment,"I2CRead @ address 2C, cmd 59 should return 0xC0CA [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write VIN_UV_FAULT_RESPONSE Response=0,Restart=0,Delay=0"
    I2CWrite,0x585A00
    Comment,"I2CRead @ address 2C, cmd 5A should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VIN_UV_WARN_LIMIT 6.000 V
    I2CWrite,0x585800CB
    Comment,"I2CRead @ address 2C, cmd 58 should return 0x00CB [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_MAX [Rail #1] 1.150 V
    I2CWrite,0x580000
    Comment,"I2CRead @ address 2C, cmd 00 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x58246612
    Comment,"I2CRead @ address 2C, cmd 24 should return 0x6612 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write ON_OFF_CONFIG [Rail #1] Mode: Always Converting
    I2CWrite,0x580202
    Comment,"I2CRead @ address 2C, cmd 02 should return 0x02 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write CLA_GAINS_BANK_0 [META,Rail #1] B1=[0.00000 0.00000 0.00049] A1=[1.00000 -1.00000 0.00000] B2=[1.00000 0.00000] A2=[1.00000 0.00000] AFE_Gain=1 Limits=[-5.00,-3.00,3.00,5.00] Gains=[1.00,1.00,1.00,1.00,1.00]"
    I2CWrite,0x58D400
    Comment,"I2CRead @ address 2C, cmd D4 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x58D518000000000001000008000000000000000410410405033D3B
    Comment,"I2CRead @ address 2C, cmd D5 should return 0x000000000001000008000000000000000410410405033D3B [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write CLA_GAINS_BANK_1 [META,Rail #1] B1=[0.00000 0.00000 0.00049] A1=[1.00000 -1.00000 0.00000] B2=[1.00000 0.00000] A2=[1.00000 0.00000] AFE_Gain=1 Limits=[-5.00,-3.00,3.00,5.00] Gains=[1.00,1.00,1.00,1.00,1.00]"
    I2CWrite,0x58D401
    Comment,"I2CRead @ address 2C, cmd D4 should return 0x01 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x58D518000000000001000008000000000000000410410405033D3B
    Comment,"I2CRead @ address 2C, cmd D5 should return 0x000000000001000008000000000000000410410405033D3B [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write CLA_GAINS_BANK_2 [META,Rail #1] B1=[0.00000 0.00000 0.00049] A1=[1.00000 -1.00000 0.00000] B2=[1.00000 0.00000] A2=[1.00000 0.00000] AFE_Gain=1 Limits=[-5.00,-3.00,3.00,5.00] Gains=[1.00,1.00,1.00,1.00,1.00]"
    I2CWrite,0x58D402
    Comment,"I2CRead @ address 2C, cmd D4 should return 0x02 [import/export does not support I2CRead; SMBus mode is recommended]"
    I2CWrite,0x58D518000000000001000008000000000000000410410405033D3B
    Comment,"I2CRead @ address 2C, cmd D5 should return 0x000000000001000008000000000000000410410405033D3B [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write DRIVER_MIN_PULSE [MFR 15,Rail #1] 0 ns"
    I2CWrite,0x58DF0080
    Comment,"I2CRead @ address 2C, cmd DF should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write EADC_SAMPLE_TRIGGER [MFR 07,Rail #1] 224 ns"
    I2CWrite,0x58D780F3
    Comment,"I2CRead @ address 2C, cmd D7 should return 0x80F3 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write EADC_TRIM [MFR 44,Rail #1] 128"
    I2CWrite,0x58FC80
    Comment,"I2CRead @ address 2C, cmd FC should return 0x80 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write FAST_OC_FAULT_LIMIT [MFR 39,Rail #1] 0.00 A/Phase"
    I2CWrite,0x58F70000
    Comment,"I2CRead @ address 2C, cmd F7 should return 0x0000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IOUT_OC_FAULT_LIMIT [Rail #1] 26.00 A
    I2CWrite,0x58461A00
    Comment,"I2CRead @ address 2C, cmd 46 should return 0x1A00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write IOUT_OC_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x584700
    Comment,"I2CRead @ address 2C, cmd 47 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IOUT_OC_LV_FAULT_LIMIT [Rail #1] 0.870 V
    I2CWrite,0x5848EB0D
    Comment,"I2CRead @ address 2C, cmd 48 should return 0xEB0D [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write IOUT_OC_LV_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x584900
    Comment,"I2CRead @ address 2C, cmd 49 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IOUT_OC_WARN_LIMIT [Rail #1] 21.00 A
    I2CWrite,0x584A1500
    Comment,"I2CRead @ address 2C, cmd 4A should return 0x1500 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IOUT_UC_FAULT_LIMIT [Rail #1] -6.60 A
    I2CWrite,0x584BB3CC
    Comment,"I2CRead @ address 2C, cmd 4B should return 0xB3CC [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write IOUT_UC_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x584C00
    Comment,"I2CRead @ address 2C, cmd 4C should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write LIGHT_LOAD_CONFIG [MFR 29,Rail #1] CLA Gain Control: NormalLoad; Phase Control: NormalLoad; Num Light Load Phases: 1"
    I2CWrite,0x58ED00
    Comment,"I2CRead @ address 2C, cmd ED should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write LIGHT_LOAD_LIMIT_HIGH [MFR 27,Rail #1] 0.00 A"
    I2CWrite,0x58EB0080
    Comment,"I2CRead @ address 2C, cmd EB should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write LIGHT_LOAD_LIMIT_LOW [MFR 38,Rail #1] 0.00 A"
    I2CWrite,0x58F60080
    Comment,"I2CRead @ address 2C, cmd F6 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write MAX_DUTY [Rail #1] 95.0 %
    I2CWrite,0x58325F00
    Comment,"I2CRead @ address 2C, cmd 32 should return 0x5F00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write MIN_DUTY [MFR 16,Rail #1] -50.0 %"
    I2CWrite,0x58E0E0E4
    Comment,"I2CRead @ address 2C, cmd E0 should return 0xE0E4 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write OT_FAULT_LIMIT [Rail #1] 90 C
    I2CWrite,0x584F5A00
    Comment,"I2CRead @ address 2C, cmd 4F should return 0x5A00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write OT_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x585000
    Comment,"I2CRead @ address 2C, cmd 50 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write OT_WARN_LIMIT [Rail #1] 80 C
    I2CWrite,0x58515000
    Comment,"I2CRead @ address 2C, cmd 51 should return 0x5000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write PAGE_ISOLATED [MFR 06,Rail #1] Isolated"
    I2CWrite,0x58D601
    Comment,"I2CRead @ address 2C, cmd D6 should return 0x01 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write POWER_GOOD_OFF [Rail #1] 0.850 V
    I2CWrite,0x585F990D
    Comment,"I2CRead @ address 2C, cmd 5F should return 0x990D [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write POWER_GOOD_ON [Rail #1] 0.900 V
    I2CWrite,0x585E660E
    Comment,"I2CRead @ address 2C, cmd 5E should return 0x660E [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write PREBIAS_GAIN [MFR 31,Rail #1] 1.000 "
    I2CWrite,0x58EF00BA
    Comment,"I2CRead @ address 2C, cmd EF should return 0x00BA [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write PREBIAS_OFFSET [MFR 30,Rail #1] 0.00 %"
    I2CWrite,0x58EE0080
    Comment,"I2CRead @ address 2C, cmd EE should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write SEQ_TIMEOUT [MFR 00,Rail #1] 0.0 ms"
    I2CWrite,0x58D00080
    Comment,"I2CRead @ address 2C, cmd D0 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write TEMP_BALANCE_IMIN [MFR 37,Rail #1] 511.50 A"
    I2CWrite,0x58F5FFFB
    Comment,"I2CRead @ address 2C, cmd F5 should return 0xFFFB [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write THERMAL_COEFF [MFR 13,Rail #1] 0.394 %/C"
    I2CWrite,0x58DD27AB
    Comment,"I2CRead @ address 2C, cmd DD should return 0x27AB [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write TOFF_DELAY [Rail #1] 0.5 ms
    I2CWrite,0x586400B2
    Comment,"I2CRead @ address 2C, cmd 64 should return 0x00B2 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write TOFF_FALL [Rail #1] 5.0 ms
    I2CWrite,0x58650500
    Comment,"I2CRead @ address 2C, cmd 65 should return 0x0500 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write TOFF_MAX_WARN_LIMIT [Rail #1] <No Limit>
    I2CWrite,0x5866FF7F
    Comment,"I2CRead @ address 2C, cmd 66 should return 0xFF7F [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write TON_DELAY [Rail #1] 5.0 ms
    I2CWrite,0x58600500
    Comment,"I2CRead @ address 2C, cmd 60 should return 0x0500 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write TON_MAX_FAULT_LIMIT [Rail #1] <No Limit>
    I2CWrite,0x58620080
    Comment,"I2CRead @ address 2C, cmd 62 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write TON_MAX_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x586300
    Comment,"I2CRead @ address 2C, cmd 63 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write TON_RISE [Rail #1] 5.0 ms
    I2CWrite,0x58610500
    Comment,"I2CRead @ address 2C, cmd 61 should return 0x0500 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write TRACKING_MODE [MFR 22,Rail #1] Off"
    I2CWrite,0x58E6FF
    Comment,"I2CRead @ address 2C, cmd E6 should return 0xFF [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write TRACKING_SCALE_MONITOR [MFR 23,Rail #1] 1.000 "
    I2CWrite,0x58E700BA
    Comment,"I2CRead @ address 2C, cmd E7 should return 0x00BA [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write VOUT_CAL_MONITOR [MFR 01,Rail #1] 0.000 V"
    I2CWrite,0x58D10000
    Comment,"I2CRead @ address 2C, cmd D1 should return 0x0000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_CAL_OFFSET [Rail #1] 0.000 V
    I2CWrite,0x58230000
    Comment,"I2CRead @ address 2C, cmd 23 should return 0x0000 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_COMMAND [Rail #1] 1.000 V
    I2CWrite,0x58210010
    Comment,"I2CRead @ address 2C, cmd 21 should return 0x0010 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_MARGIN_HIGH [Rail #1] 1.050 V
    I2CWrite,0x5825CC10
    Comment,"I2CRead @ address 2C, cmd 25 should return 0xCC10 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_MARGIN_LOW [Rail #1] 0.950 V
    I2CWrite,0x5826330F
    Comment,"I2CRead @ address 2C, cmd 26 should return 0x330F [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_OV_FAULT_LIMIT [Rail #1] 1.150 V
    I2CWrite,0x58406612
    Comment,"I2CRead @ address 2C, cmd 40 should return 0x6612 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write VOUT_OV_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x584100
    Comment,"I2CRead @ address 2C, cmd 41 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_OV_WARN_LIMIT [Rail #1] 1.100 V
    I2CWrite,0x58429911
    Comment,"I2CRead @ address 2C, cmd 42 should return 0x9911 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_SCALE_LOOP [Rail #1] 1.000
    I2CWrite,0x582900BA
    Comment,"I2CRead @ address 2C, cmd 29 should return 0x00BA [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_SCALE_MONITOR [Rail #1] 1.000
    I2CWrite,0x582A00BA
    Comment,"I2CRead @ address 2C, cmd 2A should return 0x00BA [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_TRANSITION_RATE [Rail #1] 0.240 mV/us
    I2CWrite,0x5827D5A3
    Comment,"I2CRead @ address 2C, cmd 27 should return 0xD5A3 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_UV_FAULT_LIMIT [Rail #1] 0.850 V
    I2CWrite,0x5844990D
    Comment,"I2CRead @ address 2C, cmd 44 should return 0x990D [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write VOUT_UV_FAULT_RESPONSE [Rail #1] Response=0,Restart=0,Delay=0"
    I2CWrite,0x584500
    Comment,"I2CRead @ address 2C, cmd 45 should return 0x00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write VOUT_UV_WARN_LIMIT [Rail #1] 0.900 V
    I2CWrite,0x5843660E
    Comment,"I2CRead @ address 2C, cmd 43 should return 0x660E [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IOUT_CAL_GAIN_1 [Rail #1] 10.00 mohm
    I2CWrite,0x58380A00
    Comment,"I2CRead @ address 2C, cmd 38 should return 0x0A00 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,Write IOUT_CAL_OFFSET_1 [Rail #1] 0.00 A
    I2CWrite,0x58390080
    Comment,"I2CRead @ address 2C, cmd 39 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write TEMPERATURE_CAL_GAIN_1 [MFR 20,Rail #1] 0.0 C/V"
    I2CWrite,0x58E40080
    Comment,"I2CRead @ address 2C, cmd E4 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"
    Comment,"Write TEMPERATURE_CAL_OFFSET_1 [MFR 21,Rail #1] 0.00 C"
    I2CWrite,0x58E50080
    Comment,"I2CRead @ address 2C, cmd E5 should return 0x0080 [import/export does not support I2CRead; SMBus mode is recommended]"

    ---duplicate commands for voltage rail #2 and voltage rail #3 trimmed from post ---

  • 0 in reply to Xiang Chao
    Intellectual 360 points

    What should I check to obtain proper output?

  • 0 in reply to Xiang Chao
    TI__Genius 13700 points

    Write CLA_GAINS_BANK_0 [META,Rail #1] B1=[0.00000 0.00000 0.00049] A1=[1.00000 -1.00000 0.00000] B2=[1.00000 0.00000] A2=[1.00000 0.00000] AFE_Gain=1 Limits=[-5.00,-3.00,3.00,5.00] Gains=[1.00,1.00,1.00,1.00,1.00]

    Indicates that the loop compensation has not been calculated, same for other rails.

    You will need to completely enter the design information on the Design page of the GUI, including the schematic section (Edit Full Power Stage in Schematic).

    This will allow you to use either Auto-tune to complete the compensation or you may manually adjust the compensation.

    Allways perform a Write to Hardware when changes have been completed to store the information correctly in the project file (must be performed in offline as well as online tool)

    When making the changes working online, you will also need to perform the Store to Flash command, to make the changes permanent.