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AFE4300 ADC_DATA_RATE problem

Qin Shi

Prodigy 50 points

Other Parts Discussed in Thread: AFE4300

Hi,

I have a problem regarding to ADC conversion rates. I use AFE4300 to measure weight,and I set the register to get a 16SPS conversion rate, the results are correct. But when I set a higher rate, such as 32SPS or 128SPS (just higher than 16SPS), the results become unstable and incorrect. Could anybody tell me why?

Thanks.

over 9 years ago

0 Amy Schnoor over 9 years ago

TI__Mastermind 18285 points

Qin,

We have received your inquiry about the AFE4300. We hope to have a response back to you soon

0 Qin Shi over 9 years ago in reply to Amy Schnoor

Prodigy 50 points

Hi Amy,

Thanks for your attention, and big thanks for the AFE4300 firmware which I received a few days ago.

With regards.

0 Amy Schnoor over 9 years ago in reply to Qin Shi

TI__Mastermind 18285 points

Qin,

Are you using our AFE4300EVM to do this measurement?

What do you mean by unstable? Could you possibly send us your register settings and a waveform of the results?

0 Qin Shi over 9 years ago in reply to Amy Schnoor

Prodigy 50 points

Hi, Amy

I'm not using the AFE4300EVM. Thanks for reminding me of the waveform. But I just don't have a oscilloscope... and I'm going for a holiday... So I can't get a exact waveform right now. I'll try to solve the problem a few days later.

Big thanks.

0 Amy Schnoor over 9 years ago in reply to Qin Shi

TI__Mastermind 18285 points

Qin,

OK sounds good. Let us know if you have other questions.