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Xu Liu


18 total contributions since 2019

motor controller

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Question


The model I built in 2019a works bad in the new version 2019b and I annot open the configuration parameters?what's the problem it would be ?
Hi everyone, I am facing a serious problem when I updata my 2019a to 2019b, hope you can gve me some useful advice! I usually u...

1 month ago | 1 answer | 0

1

answer

Answered
Generate variable Duty cycle automatically after each cycle (Ts)
You can achieve your requirements by modifying PWM duty cycle.that's not complex actually.

4 months ago | 0

Question


Do I need to consider loading Flash into RAM to run when I do code generation of DSP28335?
Hello, I am working on code generation of DSP28335. Do I need to consider loading Flash into RAM to run? For example, the follow...

4 months ago | 1 answer | 0

1

answer

Question


Does the use of latency in statflow state work as expected?
Hi, I have a problem with stateflow, which is if I use a delay function in the state to execute two sentences, does that delay f...

4 months ago | 1 answer | 0

1

answer

Question


why need signal conversion to assign a signal line?
hello everyone, when I assign a signal line I meet the follow problem: The Simulink signal object specified on the line origi...

4 months ago | 1 answer | 0

1

answer

Question


why there is a warning if my data store memory is only used in a task?
Hi everyone, i use data store memory to store my global variebles, and change it in my stataflow model , and there is a warinni...

5 months ago | 0 answers | 0

0

answers

Answered
Does anyone face problem when using multichannel buffered serial ports(McBSP) of F28335?
finally i use the io ports to simulate the SPI. as a simple read-function, its working well

5 months ago | 0

Answered
Why does the same SCI send sequence get different results in 28335 and 28377d?
I see,its the comunicate ports problem i think, the problem dispear whan i use rs232

5 months ago | 0

| accepted

Answered
C2000 SCI (Rx) communication to second CPU failded after reboot
Hi Daniel, Other parts of the software like the SCI transmit are still working after the reboot! I don't see clearly whats you...

5 months ago | 0

Answered
C2000 SCI (Rx) communication to second CPU failded after reboot
Hi Daniel, Does the program Programming the 28377 flash instead of the ram, or do you have the correct configuration power-on ...

5 months ago | 0

Question


Why does the same SCI send sequence get different results in 28335 and 28377d?
Hello everyone, I am working on code generation for 28335 and 28377d. Usually I need to send the data in the program to the ho...

5 months ago | 1 answer | 0

1

answer

Question


Are TI C2000's DMC and IQMATH library optimization modules faster than floating point operations?
Hello, everyone. I am now working on code generation of F28335 and F28377D. The two chips above are floating point cores(C28x ...

5 months ago | 1 answer | 0

1

answer

Answered
Wrong conversion from double to fixed point
hi Marco , When you convert data of longer words to data types of smaller words, the loss of precision is inevitable. If your...

5 months ago | 0

Answered
Flash programming TI LAUNCHXL-F28379D file load error
hi Riley, I can understand that you have a problem burning flash. If both CCXML and CMD files are correct, they will usually ...

5 months ago | 0

Answered
C2000 SCI (Rx) communication to second CPU failded after reboot
Hi Daniel, You mean you use raspberry PI to send data to 28377s and then write it into an array? 1. Do you upload this array t...

5 months ago | 0

| accepted

Question


Does anyone face problem when using multichannel buffered serial ports(McBSP) of F28335?
hello everyone! im facing a trouble when i using multichannel buffered serial ports(McBSP) of F28335, because i cannot find the...

5 months ago | 2 answers | 0

2

answers

Answered
Problem faced with ADC F28027
i have done some work with F28027,but i didn't face the same problem,could you tell me what's your software revision?or what's t...

5 months ago | 0

Question


What's Remap ePWMs for DMA access (Requires silicon revision A and above) means?
hello everyone,im doing code generation with c2000 devices, when I make the model of 28377d to relocated 28335,im facing this c...

5 months ago | 2 answers | 0

2

answers