ADSP-SC5xx/ADSP-215xx

Q&A uart problem of 21569

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uart problem of 21569

goDSP 10 months ago

Hi,

I tested the uart of 21569 in DMA mode,I found a problem:for computer terminal,received bytes is less than sended.

computer terminal software setting is:timed transmission,period is 10ms,6 bytes a time.

I attached my code here,the code function is send 6 bytes to computer terminal software while received 6 bytes.

Best regards,

Bin

0 Anand Selvaraj

on Mar 17, 2021 4:58 PM
Hi Bin,

From your mail I understand that you are using a serial terminal to send/receive data on UART. Can you please explain the issue in detail. Meanwhile, I'm attaching a simple code for your reference. This can be directly run on ADSP-SC589 or ADSP-SC584 Ezkit. Can you take this code as a reference and check if this could help?

char_echo.zip

Regards,
Anand Selvaraj.
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0 goDSP on Mar 18, 2021 12:58 AM in reply to Anand Selvaraj

I mean serial terminal periodically(100Hz) send 6 bytes to dsp,dsp send back 6 bytes to computer while it received 6 bytes.

the test result is:the number of bytes which dsp echo back is less than serial terminal send to dsp.hope you see what I mean.
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0 goDSP on Apr 1, 2021 1:03 AM in reply to Anand Selvaraj

Can anyone help me?
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0 Anand Selvaraj

on Apr 5, 2021 11:52 AM in reply to goDSP
Hi Bin,

I'm looking into this and will get back to you ASAP.

Regards,
Anand Selvaraj.
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0 goDSP on Apr 8, 2021 9:25 AM in reply to Anand Selvaraj

Hi Anand,

Have you made any process?

Regards,

Bin.
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