Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Weigh scale using CS5532

Status
Not open for further replies.
G

ggirish

Newbie level 3
Joined
Feb 16, 2005
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,330
cs5532

Hi,

While designing a weigh scale using CS5532, the display is not stable due to the changing output from CS5532. Tried averaging a number of samples and displaying, but the result is not satisfactory. If large number of samples are averaged, the tracking is very poor. Any comments on this problem?

Thanks,
 

cs5532 sample code

could anybody give sample code for reading from cs5532 adc
stability is not required
i wants to take counts from cs5532 adc
 
Hi friend

While designing a weigh scale using CS5532, the display is not stable due to the changing output from CS5532. Tried averaging a number of samples and displaying, but the result is not satisfactory. If large number of samples are averaged, the tracking is very poor. Any comments on this problem?
Click to expand...

I have same problem that describe above.

I have used Gain = 16.
and taking reading from averaging of 2000 samples.
But reading is not stable.

I am not doing any type of setting in Offset register and Calibration Register
of ADC CS3352 AS.
means the value of Offset register and Calibration Register is by default
from initializes of ADC. Is it require ?

Please give me some of Hint or idea to stabilized reading.

Thanks in advance

Shyam
India
 
PCB design for CS5532 is also very important, can you upload the PCB and Schematics.
 
Re: cs5532

for a weight scale do you need an ADC with the precision of a CS5532 ? what is the specification of the weight scale in terms of accuracy? unless it is a high precision instrument I would think an 8bit to 10bit ADC would do and even then some of the least significant bits could well be noise. Try masking out some of the least significant bits and see how it performs.
 
hi

it's quite natural
you cannot use the ADC for it's full scale
once i tried and could only achieve 20 bits with last bit toggling.
it depends on many parameters. so even if we get 16-18 bits without any problem, it's OK.
the PCB routing, impedance, capacitance, resistance of tracks, and other components,grounding like many more parameters are there.
even if it's 16 bit, 65536 counts are not bad.
i don't think you are going to design a class 1 weighing machine.
for class 2 and 3 16 bit resolution is quite good

regards

ml
 
Hi Friend

Thanks to all who reply and help me.

I get 18 bit resolution without flickering.
and it is sufficient for my project.

Thanks again to all

Shyam
 

Re: cs5532

i try interface CS5532 but not work. you can help me example codes. thank you very must.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top