TMS320F28069M: How to use SCI or I2C function within the InstaSPIN-FOC?

JINGJING LIU

Part Number: TMS320F28069M
Other Parts Discussed in Thread: BOOSTXL-DRV8305EVM, C2000WARE, MOTORWARE

I am using InstaSPIN-FOC lab11a to control a motor based F28069M launchpad and boostxl-drv8305evm.

Now I want to use an angular sensor to measure the rotating degree after transmission. The sensor I used can output the data from the pins named RX & TX or the pins named SCL & SDA. Therefore, I think the pins P28&P29, P33&P32 can be connected to the sensor. I want to know which is easier to combine with InstaSPIN-FOC?

How can I use the SCI or I2C function in F28069M launchpad to receive the measured data and set it as the feedback of the position control?

I found several resources examples in "C2000Ware_3_04_00_00_Software\device_support\f2806x\examples\c28", including i2c_eeprom, i2c_Lib_eeprom_interrupt, i2c_Lib_eeprom_polling, sci_echoback, scia_loopback, and scia_loopback_interrupts, which one is better for my situation?

Is there any tutorial to explain how to use this example?

Thank you very much!

over 4 years ago

0 Marlyn Rosales Castaneda20 over 4 years ago

TI__Mastermind 27190 points

Hi Jingjing,

I've sent your question to the right expert. Please expect a response by tomorrow.

Best Regards,

Marlyn

0 Whitney Dewey over 4 years ago

TI__Guru 54945 points

Do you mind sharing more information about what sensor you're using so I can better judge what examples will be most helpful? Are you saying it supports both I2C and SCI communication?

From a software stand point, I believe MotorWare does contain some SCI drivers, so that may make it easier to integrate, but I2C should be possible as well if you add the appropriate C2000Ware files to the MotorWare application.

Whitney

0 JINGJING LIU over 4 years ago in reply to Marlyn Rosales Castaneda20

Prodigy 50 points

Thank you

0 JINGJING LIU over 4 years ago in reply to Whitney Dewey

Prodigy 50 points

The sensor is JY-ME01 from Witmotion. It supports both communication.

+1 Whitney Dewey over 4 years ago in reply to JINGJING LIU

TI__Guru 54945 points

Okay, like I said, you may want to try SCI to start given there are drivers for it in MotorWare already. You can use the SCI examples in C2000Ware to get familiar with the peripheral. You may also want to check out the examples in device_support\f2802x\examples\drivers. They're for a different device, so they may not run on your board, but they are written using similar drivers as those in MotorWare, so they could be a useful reference.

Whitney

0 JINGJING LIU over 4 years ago in reply to Whitney Dewey

Prodigy 50 points

Thank you, I will try

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TMS320F28069M: How to use SCI or I2C function within the InstaSPIN-FOC?