Play board + simple TMS320F28035 development board

ccmj4708

Play board + simple TMS320F28035 development board [Copy link]

 

 

During the Spring Festival, I had a lot of free time. I wanted to use this time to learn about TI's DSP chip, model TMS320F28035. This chip is very suitable for controlling the drive of the motor, but I am not very familiar with this chip. I decided to make a development board by myself. The planned onboard functions include LED running, PWM output, serial communication, ADC, etc. Use these recommended interface peripherals to run the official routines and finally achieve the learning purpose.

First, I designed the schematic diagram

Then I spent a few days designing the PCB diagram

3D rendering

The online quick 24-hour proofing was completed before the holiday. During the holiday, even the express delivery was not running. The PCB received was as shown in the picture

I have something to do at home during the Spring Festival, welding

After the development board is made, you need to find an emulator to debug the program and run TI routines. The emulator I found is produced by Lierda Technology Co., Ltd. The model is LSD-MiniStick. This product was released by this company more than 10 years ago. I got it as a gift when I attended the company's seminar. Now I take it out and try it out. It still works, which proves that the quality of this product is good.

This emulator was produced in the early stage. Its external pins are different from those of the current XDS100V3 emulator, so an adapter was designed.

Let’s use this development board to run the marquee first.

ccmj4708

Grab the sofa yourself

material:

Schematic diagram PCB diagram pdf format: PCB_Project.pdf (931.85 KB, downloads: 86)

2020-2-17 19:29 上传

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Schematic diagram: CCS_TMS320F.SchDoc (330.5 KB, downloads: 46)

2020-2-17 19:31 上传

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PCB gerber file: ccs打样gerber文档20191201.rar (348.42 KB, downloads: 44)

2020-2-17 19:33 上传

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TI example: ku_file_f2803x.rar (3.47 MB, downloads: 87)

2020-2-17 19:35 上传

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chenbingjy

I have never used this chip, but I have played with 28027 and 28335. I once made a 28027 development board myself.

ccmj4708

chenbingjy posted on 2020-2-16 17:33 I have never used this chip, but I have played with 28027 and 28335. I once made a 28027 development board myself.

This chip is good for motor control boards. Many of our peers are using it.

fff99

Please open source it when it is convenient, thank you

threetigher

ccmj4708 posted on 2020-2-16 18:16 This chip is good for making motor control boards. Many of our peers are using it

Where did you get the boards made during this period? How is the delivery time?

threetigher

chenbingjy posted on 2020-2-16 17:33 I have never used this chip, but I have played with 28027 and 28335. I once made a 28027 development board myself.

I would like to ask my friend if I can use 28027,28335 hrpwm as spwm. Is it OK? Thank you

chenbingjy

threetigher posted on 2020-2-16 23:30 I would like to ask my friends about using 28027,28335 hrpwm as spwm. Is it OK? Thank you

I have forgotten everything. I haven't worked with DSP for a long time.

ccmj4708

OK, I will upload the information when I have time these days.

ccmj4708

PCB proofing in Jiepei, the price is very low

ccmj4708

Delivery time: 24 hours for double-layer boards and 72 hours for 4-layer boards

threetigher

ccmj4708 posted on 2020-2-17 11:23 Delivery time for double-layer board is 24 hours, and 4-layer board is 72 hours

It's an extraordinary period now, and you're still so fierce?

ccmj4708

threetigher posted on 2020-2-17 12:24 It's an extraordinary time now, why are you still so fierce?

That was the board that was made before the holiday, and the board that was welded during the holiday.

ccmj4708

fff99 posted on 2020-2-16 21:25 You can open source it when it is convenient, thank you

See the information on the 2nd floor

threetigher

ccmj4708 posted on 2020-2-17 19:37 For information, please see the second floor

Thanks for sharing!

CH330N, why not use CH340G?

5V power supply, SCI is 3.3V level, will there be any problem?

ccmj4708

No, the level has been processed in the circuit.

ccmj4708

threetigher posted on 2020-2-17 21:10 Thank you for sharing! CH330N, why not CH340G? 5V power supply, SCI is 3.3V level, will there be any problem?

A diode is used for isolation on the board. When the CH330 end is 5V, the current cannot pass due to the existence of the diode, and there is a pull-up resistor on the MCU end, so the MCU end gets 3.3V.