DRV8343S-Q1EVM: F280025 WITH DRV8343S SAMPLE PROJECT FOR SENSORLESS BLDC MOTOR CONTROL (MOST SUITABLE FOC OR TRAPEZODAL) ALGRATHRM

Dear team,

                   i have interfaced (  developed source code , not connected driver ic with 280025c kit ) drv8343 driver ic with "universal_motorcontrol_lab_f28002x" project instead of drv8323 drv ic .

as per the guide line "Motor Control SDK Universal Project and Lab document" trying to run the code Level 1 Incremental Build , without connecting drv8343 driver board (only 280025c launchpad kit ) for checking pwm ouput pulses and spi 

i flashed the source code launchpad kit and observed flowing points 

its not generate pwm pulse corresponding 6 pins !

please let me know how can i check  pwm duty in debugging mode ?   

if need to change any setting for "universal_motorcontrol_lab_f28002x" project ?  

please refer same environment examples project for my reference   .

Please follow the guide to check the value of "motorVars_M1.faultMtrUse.all" if there is any fault, and try to fix these faults.

You should connect the drv8343 in any build levels, and make sure that you configure the GPIO and SPI to interface and control drv8343 correctly.

I can attached following error in my understand not connected drv 8343 driver  board so that why showing undervoltage , but my intention without drv8343 board  to check pwm output pulses from mcu , henceforth connected power supply 3.3v from usb with tms320f280025c launchpad kit 

i hope without drv8343 driver can able to check pwm pulses (duty) only , is it correct ?

Please check the value of "motorVars_M1.faultMtrUse.all", not the value of "motorVars_M1.faultMtrNow.all".

Yes, as described in lab guide, you should run the  project in build level 1, and check the PWM output on the related pins on launchxl-F280025c.

we are trying to replace the c2000 family of TMS320280025C (automotive qualified) MCU with drv8343 driver ic (WITH SENSORELSS BLDC MOTOR) ,

 interfaced tms320f280025c launch pad kit with DRV8343S evb board power module are utilized. 

i have interfaced (  developed source code , not connected driver ic with 280025c kit ) drv8343 driver ic with "universal_motorcontrol_lab_f28002x" project instead of drv8323 drv ic .

as per the guide line "Motor Control SDK Universal Project and Lab document" trying to run the code Level 1 Incremental Build , without connecting drv8343 driver board (only 280025c launchpad kit ) for checking pwm ouput pulses and spi 

now working on  As per the tabulation in yellow color  , have question on ,  is it support "FAST based senseless Foc" algorithm in BLDC motor ?   

used as pre-define symbols "MOTOR1_FAST",  please let me know your feedback .

above condition pwm output pulses not generate from MCU , but i can see spi output pulses .

and also ,

As per tabulation have mention in red color "Trapezoidal InstaSPIN-BLDC"  and pre defined symbol  "MOTOR1_ISBLDC".

is it support senseless BLDC motor control algorithm?

please let me know  below tabulation which one support (enable) motor control "Algorithms or
Functions" and "Pre-Define Symbols" to drive the senseless BLDC motor with f280025c +drv8343s driver IC 

Bhuvaneshwaran M said:

now working on  As per the tabulation in yellow color  , have question on ,  is it support "FAST based senseless Foc" algorithm in BLDC motor ?   

used as pre-define symbols "MOTOR1_FAST",  please let me know your feedback .

Yes, you can use the FAST based sensorless-FOC on three-phase BLDC or PMSM.

Bhuvaneshwaran M said:

is it support senseless BLDC motor control algorithm?

Yes, it's sensorless trapezoidal control.

Bhuvaneshwaran M said:

please let me know  below tabulation which one support (enable) motor control "Algorithms or
Functions" and "Pre-Define Symbols" to drive the senseless BLDC motor with f280025c +drv8343s driver IC 

All of the sensorless based algorithm can be used on f280025c +drv8343s driver IC that includes FAST, ISBLDC, and eSMO as mentioned above. You may try to use the FAST that could be easy to spin a motor and achieve better performance.

We haven’t heard from you for a week, so we are assuming you were able to resolve your issue. Please let me know if you have any questions. We would like to close this thread if no any further questions. Thanks!

now i have interfaced drv8323S ( BBOSTXL-DRV8323RX) with f280025c launchpad kit  (LAUNCHXL-F280025C ) 

trying to check the current and voltage adc offset value as per the document  , to debug the build level1   #define DMC_BUILDLEVEL  DMC_LEVEL_1

but i have facing fault on current and voltage offset error ,

please let me know your feed back,

Also i could not read the default offset value of voltage and current as mention below,  

Please let know your feed back .

Please take a look at the lab guide and follow it to connect the kits. Make sure that the related switches are set correctly on LAUNCHXL-F280025C, and the connection is as below shown in the lan guide.

• For more details about the BOOSTXL-DRV8323RS, see the User's Guide for the EVM.
• Make sure that the following items are completed as described below, and then connect the BOOSTXLDRV8323RS
to J1/J3 and J4/J2 of the LAUNCHXL-F280025C as shown in Figure 2-7.
– Populate C9, C10, and C11 with a 47nF capacitor.
– Bend J3-29 and J3-30 of the LAUNCHXL-F280025C90 degrees so that they are not connected to the
BOOSTXL-DRV8323RS as shown in Figure 2-5.
– If using the DAC128S085EVM board, bend J5-42 of the LAUNCHXL-F280025C 90 degrees to avoid
connecting that pin to the DAC128S085EVM board. This EVM board is only used for debugging purposes
to monitor various software variables.
– Use a jumper wire to connect J3-29 of the LAUNCHXL-F280025C to J3-11 of the BOOSTXL-DRV8323RS
if the potentiometer functionality is desired to be used on the BOOSTXL-DRV8323RS for setting the
reference speed.

Universal Project and Lab User’s Guide: https://www.ti.com/lit/spruj26

As per the guide line configured and tried to initial offset value from voltage and current  , but not able to read correct offset value as per the reference (spruj26_Motor Control SDK Universal Project and Lab) document in (#define DMC_LEVEL_1     1   // Y 50% duty, offset calibration and verify phase shift)

PLEASE LET ME KNOW IF I NEED TO ANY CHANGE  HARDWARE BOARD ?

HOW CAN I GET EXAXT OFFSET VALUE FROM BUILD LEVEL1 ? 

 PLEASE LET ME KNOW YOUR FEED BACK (IS IT POSSIBLE PINK ME THROUGH WHATSUP. MY CONDUCT NUMBER +91-9003224712)

Seems like BOOSTXL-DRV8323RS is not connected with LAUNCHXL-F280025C correctly, please follow the guide and the instruction as mentioned above to set up the kits, may try to check the PWM output and ADC input voltage on the related pins on BOOSTXL-DRV8323RS with an oscilloscope.

BTW, you need to add the dc-bus voltage to the BOOSTXL-DRV8323RS in build level 1 for offset calibration.

Please follow the lab guide to run the project in build level 1, and don't change the default configuration to enable much more functions like CMD_POT_EN..., and don't need to connect the DAC128S085EVM for build level 1.

Please make sure that the switches are set correctly as shown in lab guide as below also, especially the S2.

• Install jumpers on JP1, JP2, JP3 and J101 for the power supply and debug JTAG. And jumpers on JP8 for the power supply of DAC128S board if used.

• For S2, position the SEL1 (LEFT) switch UP (1) to route GPIO28 and GPIO29 to the BoosterPack connector, and position the SEL2 (RIGHT) switch UP (1) to rout GPIO16 and GPIO17 to the virtual COM port of the XDS110 debugger.
• For S3, position the SEL1(LEFT) switch DOWN to pull GPIO24 low to logic 0, and position the SEL2(RIGHT) switch UP to pull GPIO32 high to logic 1 to put the F280025C into wait boot mode for reducing the risk of connectivity issues or a previous loaded code execution.
• For S4, set S4 to DOWN (on), GPIO32 and GPIO33 are routed to the CAN transceiver to J14 CAN interface if the pre-define symbols "CMD_CAN_EN" is set in project properties.
• For S5, position the SEL1(LEFT) switch DOWN to route GPIO44/37/43 to eQEP1 for the encoder interface on J12, and position the SEL2 (RIGHT) switch DOWN to route GPIO14/25/26 to eQEP2 for the Hall sensor interface on J13.

Thank you for your valuable feed back !!!!

As per your feedback In build level 1 without motor condition now i can read successfully offset value of voltage and current , got pwm output in register value 50% also , i am wounding this flag  always showing  flagEnableRunAndIdentify = 0, but as per guide this flag should be change to high (1) 

The systemVars.flagEnableSystem should be set to 1 after a fixed time, that means the offsets calibration has
been done. The fault flags, motorVars_M1.faultMtrUse.all should be equal to 0.

 motorVars_M1.flagEnableRunAndIdentify to 1 SHOULD NOT HAPPEND in the Expressions window 

when started build level 2 with motor connection also we can got same value , 

please i need your feed back on this ? 

Thank you for support Luo!!!!

Now i stated to interface drv8343 driver ic with c2000(f280025c) mcu , i have updated corresponding register in function which is having drv8323 deiver ic .

now can able build with out error . below mention as modified function 

void DRV8343_readData(DRV8343_Handle handle, DRV8343_VARS_t *drv8343Vars) 

void DRV8343_writeData(DRV8343_Handle handle, DRV8343_VARS_t *drv8343Vars)

void drv8343_SPI_Write(DRV8343_Handle handle, const uint16_t regAddr, const uint16_t data)

uint16_t drv8343_SPI_Read(DRV8343_Handle handle,const uint16_t regAddr)

void DRV8343_setupSPI(DRV8343_Handle handle,DRV8343_VARS_t *drv8343Vars)

I will try to read adc offset value and Vadc bus voltage in level1 build  but caould not able to read 12 DC bus voltage and offset value also ,

attached image for your reference Please let me know your feed back on this  

Please follow the lab guide to change the configuration parameters and codes in hal.h and hal.c, to ensure the ADC and PWM are configured according to the board and the connection you did.

And also, you need to change the hardware parameters for current and voltage sensing in user_mtr1.h according to the board.