MCF8316C-Q1: the range of maximum phase current

Hi Ethan, 

Can you share the complete start up current waveform, from align to open loop until the fault is coming. For the suitability, assess the thermal performance with the continuous RMS current. Can you specify the continuous RMS current.

Can you check the marking on the device - Is it MCF8316C?

Regards,

Manu

Hi Ethan,

Can you confirm HW LOCK Limit deglitch time? If it is zero, please change to greater than 2uS.

Recommendation is to use 2uS.

Can you please share the JSON file?

Also, please share motor parameters (R, L)

Thanks and Best Regards

Venkatadri S

{
"signature": "oneui-register-data",
"data": [
[
{
"idx": 0,
"id": "ISD_CONFIG",
"value": "0x043F8CFF",
"addr": "0x00000080"
},
{
"idx": 1,
"id": "REV_DRIVE_CONFIG",
"value": "0xA80AF064",
"addr": "0x00000082"
},
{
"idx": 2,
"id": "MOTOR_STARTUP1",
"value": "0x05580BD0",
"addr": "0x00000084"
},
{
"idx": 3,
"id": "MOTOR_STARTUP2",
"value": "0x4B09C408",
"addr": "0x00000086"
},
{
"idx": 4,
"id": "CLOSED_LOOP1",
"value": "0x0E1901D1",
"addr": "0x00000088"
},
{
"idx": 5,
"id": "CLOSED_LOOP2",
"value": "0x9BAD5B01",
"addr": "0x0000008A"
},
{
"idx": 6,
"id": "CLOSED_LOOP3",
"value": "0x41A79280",
"addr": "0x0000008C"
},
{
"idx": 7,
"id": "CLOSED_LOOP4",
"value": "0x64720C80",
"addr": "0x0000008E"
},
{
"idx": 8,
"id": "REF_PROFILES1",
"value": "0x00000000",
"addr": "0x00000094"
},
{
"idx": 9,
"id": "REF_PROFILES2",
"value": "0x00000000",
"addr": "0x00000096"
},
{
"idx": 10,
"id": "REF_PROFILES3",
"value": "0x00000000",
"addr": "0x00000098"
},
{
"idx": 11,
"id": "REF_PROFILES4",
"value": "0x800D0000",
"addr": "0x0000009A"
},
{
"idx": 12,
"id": "REF_PROFILES5",
"value": "0x00000000",
"addr": "0x0000009C"
},
{
"idx": 13,
"id": "REF_PROFILES6",
"value": "0x00000000",
"addr": "0x0000009E"
}
],
[
{
"idx": 0,
"id": "FAULT_CONFIG1",
"value": "0xEFF80206",
"addr": "0x00000090"
},
{
"idx": 1,
"id": "FAULT_CONFIG2",
"value": "0x80280DB8",
"addr": "0x00000092"
}
],
[
{
"idx": 0,
"id": "INT_ALGO_1",
"value": "0xA7FB74FD",
"addr": "0x000000A0"
},
{
"idx": 1,
"id": "INT_ALGO_2",
"value": "0x00000027",
"addr": "0x000000A2"
}
],
[
{
"idx": 0,
"id": "PIN_CONFIG",
"value": "0x00000000",
"addr": "0x000000A4"
},
{
"idx": 1,
"id": "DEVICE_CONFIG1",
"value": "0x00101460",
"addr": "0x000000A6"
},
{
"idx": 2,
"id": "DEVICE_CONFIG2",
"value": "0xC000F00F",
"addr": "0x000000A8"
},
{
"idx": 3,
"id": "PERI_CONFIG1",
"value": "0xC3601F00",
"addr": "0x000000AA"
},
{
"idx": 4,
"id": "GD_CONFIG1",
"value": "0x9C450100",
"addr": "0x000000AC"
},
{
"idx": 5,
"id": "GD_CONFIG2",
"value": "0x80000000",
"addr": "0x000000AE"
}
],
[
{
"idx": 0,
"id": "GATE_DRIVER_FAULT_STATUS",
"value": "0x00000000",
"addr": "0x000000E0"
},
{
"idx": 1,
"id": "CONTROLLER_FAULT_STATUS",
"value": "0x00000000",
"addr": "0x000000E2"
}
],
[
{
"idx": 0,
"id": "ALGO_STATUS",
"value": "0x15A6FFF4",
"addr": "0x000000E4"
},
{
"idx": 1,
"id": "MTR_PARAMS",
"value": "0x00000000",
"addr": "0x000000E6"
},
{
"idx": 2,
"id": "ALGO_STATUS_MPET",
"value": "0x0A000000",
"addr": "0x000000E8"
}
],
[
{
"idx": 0,
"id": "ALGO_CTRL1",
"value": "0x20000000",
"addr": "0x000000EA"
}
],
[
{
"idx": 0,
"id": "ALGO_DEBUG1",
"value": "0xFFFF0000",
"addr": "0x000000EC"
},
{
"idx": 1,
"id": "ALGO_DEBUG2",
"value": "0x00000000",
"addr": "0x000000EE"
},
{
"idx": 2,
"id": "CURRENT_PI",
"value": "0x02BB0126",
"addr": "0x000000F0"
},
{
"idx": 3,
"id": "SPEED_PI",
"value": "0x02D601D6",
"addr": "0x000000F2"
},
{
"idx": 4,
"id": "DAC_1",
"value": "0x00000000",
"addr": "0x000000F4"
},
{
"idx": 5,
"id": "DAC_2",
"value": "0x00000000",
"addr": "0x000000F6"
}
],
[
{
"idx": 0,
"id": "ALGORITHM_STATE",
"value": "0x00200009",
"addr": "0x00000190"
},
{
"idx": 1,
"id": "FG_SPEED_FDBK",
"value": "0x0207D508",
"addr": "0x00000196"
},
{
"idx": 2,
"id": "BUS_CURRENT",
"value": "0x0086B10D",
"addr": "0x00000410"
},
{
"idx": 3,
"id": "PHASE_CURRENT_A",
"value": "0x00100000",
"addr": "0x00000440"
},
{
"idx": 4,
"id": "PHASE_CURRENT_B",
"value": "0x00000000",
"addr": "0x00000442"
},
{
"idx": 5,
"id": "PHASE_CURRENT_C",
"value": "0xFFF00000",
"addr": "0x00000444"
},
{
"idx": 6,
"id": "CSA_GAIN_FEEDBACK",
"value": "0x00010003",
"addr": "0x00000468"
},
{
"idx": 7,
"id": "VOLTAGE_GAIN_FEEDBACK",
"value": "0x00000001",
"addr": "0x00000472"
},
{
"idx": 8,
"id": "VM_VOLTAGE",
"value": "0x02FD6DF6",
"addr": "0x00000476"
},
{
"idx": 9,
"id": "PHASE_VOLTAGE_VA",
"value": "0x00014C8D",
"addr": "0x0000047A"
},
{
"idx": 10,
"id": "PHASE_VOLTAGE_VB",
"value": "0x0000DDB3",
"addr": "0x0000047C"
},
{
"idx": 11,
"id": "PHASE_VOLTAGE_VC",
"value": "0x00006ED9",
"addr": "0x0000047E"
},
{
"idx": 12,
"id": "SIN_COMMUTATION_ANGLE",
"value": "0x07C4A244",
"addr": "0x000004B6"
},
{
"idx": 13,
"id": "COS_COMMUTATION_ANGLE",
"value": "0x01E055AE",
"addr": "0x000004B8"
},
{
"idx": 14,
"id": "IALPHA",
"value": "0x22600000",
"addr": "0x000004D2"
},
{
"idx": 15,
"id": "IBETA",
"value": "0xF7164FD0",
"addr": "0x000004D4"
},
{
"idx": 16,
"id": "VALPHA",
"value": "0x003ABC3C",
"addr": "0x000004D6"
},
{
"idx": 17,
"id": "VBETA",
"value": "0xFF83A7A3",
"addr": "0x000004D8"
},
{
"idx": 18,
"id": "ID",
"value": "0xFE542E5B",
"addr": "0x000004E2"
},
{
"idx": 19,
"id": "IQ",
"value": "0x02CC1CB4",
"addr": "0x000004E4"
},
{
"idx": 20,
"id": "VD",
"value": "0xFF94CE9B",
"addr": "0x000004E6"
},
{
"idx": 21,
"id": "VQ",
"value": "0xFFA99EB2",
"addr": "0x000004E8"
},
{
"idx": 22,
"id": "IQ_REF_ROTOR_ALIGN",
"value": "0x2332AE60",
"addr": "0x00000524"
},
{
"idx": 23,
"id": "SPEED_REF_OPEN_LOOP",
"value": "0xFF5C2930",
"addr": "0x0000053C"
},
{
"idx": 24,
"id": "IQ_REF_OPEN_LOOP",
"value": "0xECCD1540",
"addr": "0x0000054C"
},
{
"idx": 25,
"id": "SPEED_REF_CLOSED_LOOP",
"value": "0x0138CA70",
"addr": "0x000005D4"
},
{
"idx": 26,
"id": "ID_REF_CLOSED_LOOP",
"value": "0x00000000",
"addr": "0x00000606"
},
{
"idx": 27,
"id": "IQ_REF_CLOSED_LOOP",
"value": "0x02B90CEC",
"addr": "0x00000608"
},
{
"idx": 28,
"id": "ISD_STATE",
"value": "0x00000000",
"addr": "0x00000682"
},
{
"idx": 29,
"id": "ISD_SPEED",
"value": "0x00000000",
"addr": "0x0000068C"
},
{
"idx": 30,
"id": "IPD_STATE",
"value": "0x00000000",
"addr": "0x000006C0"
},
{
"idx": 31,
"id": "IPD_ANGLE",
"value": "0x00000000",
"addr": "0x00000704"
},
{
"idx": 32,
"id": "ED",
"value": "0xFF7173A0",
"addr": "0x0000074A"
},
{
"idx": 33,
"id": "EQ",
"value": "0xFFEDAE4D",
"addr": "0x0000074C"
},
{
"idx": 34,
"id": "SPEED_FDBK",
"value": "0x0136CBF6",
"addr": "0x0000075A"
},
{
"idx": 35,
"id": "THETA_EST",
"value": "0x288BF0DA",
"addr": "0x0000075E"
}
]
]
}

Also, how to set up magnetic weakening control on the 8316C. Is there an introduction to it? Or I need an external Ic as the strategy。

Hi Zhang,

I am traveling this week, I will reply by end of this week.

MCF8316C do not support flux weakening  directly. 

You can refer to MCF8329A for flux weakening.

This requires  external  MOSFET.

Thanks and Best Regards 

Venkatadri S 

Received, thanks, and looking forward to your reply.

Hi, would like to inquire if there is MSPM0C110x control MCF8316C drive motor case engineering, or whether there is a similar M0+ core driver 8316C code engineering. Please help share it after speeding up my development process, which is about to be mass-produced.

Hi Zhang

I made some changes to JSON file,

1. I enabled many faults which are disabled.

2. I  added HW Lock limit Deglitch time and configured for 2us+

Your motor inductance value is lowest which is 6uS. Can you re check motor parameter?

Regrading M0 example, I can share I2C code example.

I will reply by week end.

Thanks and Best Regards

Venkatadri S

Received, thanks, please share the modified JSON file, I will re-review the motor, and please help share the instance of M0+ core microcontroller using I2C configuration MCF8316C-Q1 as soon as possible. Thank you.

Hi Zhang,

I forgot to attach the JSON , please find below.

Is there a release for the M0+ routine? My mail is zhangjq@jkaec.com

Hi Zhang,

We have used M0 in some reference design but there is not guide. I will get you the code by tomorrow.

Ok, thanks for the reply

Hi Zhang,

I have asked team to share the example, I will respond by end of this week.

OK,Please help speed up the process.

hi,?

Hi Zhang,

There is an example software on MSP430 which is used to communicate between EVM and GUI (MOTORSTUDIO).

MOTORSTUDIO GUI for evaluation module (EVM) | TI.com (MCXEVM-MSP430FR2355-MOTORSTUDIO-FW )

You can download to understand the low level frame work.

We are also working on more generic code example which we are releasing in few week time.

Hello, I currently have an abnormal phenomenon, please help solve it, I am using the M0+ kernel to get MSPM0C 1104C to communicate with the MCF8316C, through the host (1104c) to read the 8316c data when the last response appears NACK abnormal, please help analyze or provide 1104C normal communication code example. At present, I am using the 1104C "mspm0_sdk_2_01_00_03" to get the "i2c_controller_target_dynamic_switching" strength code execution.   

Hi Zhang,

I see it is NACK for address data (0x01), can you check the device I2C address is not changed.

Use EVM (GUI) and do I2C address can to find the correct address.

I2C address can be programmed in register DEVICE_CONFIG1 [I2C_TARGET_ADDR].

I am sharing some reference code written with MSPM0, this is for a TI Design.

https://tidrive.ext.ti.com/u/ralIzS6pSNi_qUjc/7bed7557-f7a5-4773-9b7b-703f5eea1037?l

5W3H;9RA

Thanks and Best Regards

Venkatadri S

hi，Please help solve the following problems。

1. As shown in the following figure

2.I am currently debugging by setting the current loop PID to 0, which can run normally. How to read and write the adaptive PID parameters, and how to tune the PID of this project? Please help guide me.

Thank you and have a great time。

Hi Zhang,

Can you also mention what is the current level here?

Is this thread same project? Motor details available?

Thanks and Best Regards

Venkatadri S

The peak current is 6A, and the motor parameters are as follows: phase resistance: 0.048mΩ, phase inductance 0.045uH, motor_bemf: 7mv/Hz;

In addition, in addition to the current fluctuation problem, I am currently encountering another problem, at present I have a product phase current needs to be limited to about 6.5A, I see that the current limit phase current level is not 6.5A, how to design this can meet the 6.5A current limiting current operation.

Hi Zhang,

Thanks for sharing, I will look into this and respond by tomorrow.

Thanks and Best Regards

Venkatadri S

Hello Venkatadri, I currently have another question. The BK output of 8316C is 5V, but 1104C is powered by 3.3V for the microcontroller. How can I write the error from 1104C to 8316C offline. How to mass produce and write product programs.

Hello, I recently applied 1104C to use J-LINK when burning, occasionally can not write, must replace the single-chip microcomputer, IDE prompt error as follows, please help analyze how to restore the chip. This is shown in the figure below.

Hi Zhang,

Do you mean writing to EEPROM offline?

Your system is single PCB with Host (1104C) and MCF8316C, are you powering 1104C separately? 

The Buck output of MCF8316C is used to power any other section on your PCB?

Thanks and Best Regards

Venkatadri S

At present, the step-down module of 8316C is directly supplying power to 1104C, and there will be a period of 5V power supply online when flashing for the first time, but 1104C is a 3.3V mcu, which is a problem, please help give a flashing solution!

In addition, I now use the logic that 1104C will write to EEPROM (ard:0X80-0XAE) as I2C to 8316C every time it is powered on. This is the second question.    i Please help reply.         

In addition, in addition to the current fluctuation problem, I am currently encountering another problem, at present I have a product phase current needs to be limited to about 6.5A, I see that the current limit phase current level is not 6.5A, how to design this can meet the 6.5A current limiting current operation.

In addition, in addition to the current fluctuation problem, I am currently encountering another problem, at present I have a product phase current needs to be limited to about 6.5A, I see that the current limit phase current level is not 6.5A, how to design this can meet the 6.5A current limiting current operation.

Hello, I would also like to inquire whether the PID of the current loop can be directly written to KP=0 and KI=0, and if it is not recommended to write 0 directly, please share the experience and manual of the PID debugging of the current loop.  Please be sure to reply!!

Hi Zhang,

By default user need not write KP, KI for current loop. If we keep the fields as 0, device will calculate internally or user can calculate and program these fields.

Now when do you require to change KP, KI? When you want to smoothen current raise for acoustics , then user can reduce the current loop gain.

Thanks and Best Regards

Venkatadri S

Hi, I apply it to fan blower products, KP = 1, KI = 200, when the motor runs normally at 6.5A phase current, the load suddenly becomes smaller, from 0.5n.m to 0.2n.m, the speed is from 8000RPM → 14000RPM, the motor will shut down, and the Hard_lock fault will be triggered synchronously. But when I write KP=0;KI=0, there is no such fault condition. It's okay if I write 0 directly, do you have KP=0 or KI=0 mass production application experience, and there are no other risks.Hope to reply。

Hi Zhang,

Current KP, KI is calculated internally by the device with best POLE/ZERO cancellation method. That means bandwidth will be good enough for the motor type.

If you change KP, KI please take into account that bandwidth is not affected.

Current controller works well if bandwidth matches for any transient load changes, if we weaken the controller bandwidth there are chances of failing to respond to load changes.

You can change bandwidth for following reasons

1. If phase current is not sinusoidal enough (impacting acoustics)- adjust bandwidth to shape the sine wave looks better

2. Overshoot of speed is too high - to damp it we can reduce gains of KP, Ki.

How to read internally calculated Current , KP, KI?

There is a variable CURRENT_PI in the Algorithm Control group, this is read only and this gets updated whenever speed command is issued and CLOSE_LOOP3 [CURRENT_KP: CURRENT"KI] are written zero

Read this register and then scale down KP, KI value equally. For example, reduce by 1/2 and see the response, and go on. 

We need to verify from all aspects (speed response, load transient, voltage transient etc)

Thanks and Best Regards

Venkatadri S

Hello, please help confirm what is the maximum long-term input voltage range of speed/wake pin, I want to connect directly to 12V.

In addition, I want to know how to reset the EEPROM without i2c, I occasionally have a write error, I can no longer debug through i2c, and then have to replace the chip, which is a big problem in the debugging process!

Hope for a quick and detailed reply