Hi，community
When I config the ADC model, there is an error like following.
but , I have already check the ADC configuration，there is no other pin shared with other module。
Can you give me some ideas
Thank you very much.
best regards
hao
Hello haoxue1027@qq.com,
Unfortunately, I can't reproduce the issue you encounter. I've tried making the same configuration but "it works on my machine".
What you can try to do is to select more pins, reselect the ADC Instance (on the ADC instance selection all the displayed pins are refreshed) and then select back the desired number of pins. Make sure that you check with other blocks like GPIO and so on to not using one of the selected PIN.
Can you please tell us what MBDT version are you using? (Type 'ver' in Matlab and send use the line related to MBDT).
If not, please consider sending us the model and we'll check.
Hope this helps,
Marius
Hello haoxue1027@qq.com,
1. Make sure that the pins on which you feed signals are the right ones
2. If the PWMs are not generated without the FexPWM_Disable_Enable this means that in your model, the FlexPWM block might have the following option unchecked;
3, Please start developing your model from our provided example pwm_ctu_Adc_mpc574xP.
Hope this helps,
Marius
Hello haoxue1027@qq.com,
Are the ADC conversion results right? You might encounter this case:
I will have a look later on you model, but if you are using ADC dual conversion command, maybe sometimes the second value is converted first so this might be the reason for bouncing.
Hope this helps,
Marius
Hello,Marius
For the PWM - CTU - ADC sampling, I did some tests based on the above model.
The ADC block is set to
PB12 ADC1[14] CH1:14 Vdc ;
PB15 ADC1[2] CH2:2 Idc;
PB11 ADC1[13] CH3:13 Ia;
PB7 ADC0[0] CH4:0 Ib;
Firstly，I do the calculation outside of the CTU ISR by the trigger which is same as demo "PMSM_ClosedLoop_mpc5744p"
The CTU config is following.
case1: The CHs interfere each other.
case2: As you said, the ch3 and ch4 exchanged each other in the dual mode.
case3: ch1 and ch2 is not stable. ch3 and ch4 exchanged.
I'm really confused about this result. Can you test my model on your computer and give me some suggestion about the CTU config?
Waiting for your replying
best regards
hao
Hello,Marius
The ADC conversion is right here. The normal Vbus is 24, The normal current is 0.
There is a little tolerance beacuse of zero drift in my opinion.
But when I add the calculation module, the adc channel change each other.
Waiting for your answer.
Thank you very much.
best regards
hao
Hello,@marius
I have updated MBD to VER 3.2.
Now I'm using the new model for ADC sampling based demo pwm_ctu_adc_mpc574xP
But when I used the Freemaster observation, the ADC channels kept switching between each other,
For example,when I dont add the sample calculation module，the sample data and adc channel is same as configuration.
But when I add the calculation module, the adc channel change each other.
May I set something wrong configuration？
Any help will be appreciated.
best regards
hao
