CCU - Error in count from UP to DOWN

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User11637
Level 2
Level 2
I noticed a defect verified both in CCU4 and in CCU8, both on XMC1404 and on XMC4700.
The defect is as follows: I have to generate a pulse exactly 2 clock wide in both count directions, but when I count UP the pulse is right, but when I count DOWN the pulse becomes 3 clock wide.

When the count UP:
3159.attach

When the count DN:
3160.attach

I created a small project to prove the defect (see attached file): you can use the XMC1400 Boot Kit.
This is the configuration with DAVE:
3158.attach

Connect oscilloscope to outputs P1.0 (Clock output) and P1.1 (pulse output). Then use an electric wire connected to input P0.12 to reverse the counter direction (open: UP counter, connected to Vdd: DN counter).

Why does this happen? It's not normal. According to what is written in the reference manual of CCU4 (or CCU8) this anomaly should not occur.

Regards
Andrea
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7 Replies
User11637
Level 2
Level 2
Why did no employee Infineon answer or verify this defect? Do not you think this is a bad problem?

Andrea.
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jferreira
Employee
Employee
10 sign-ins 5 sign-ins First like received
Hi,

We are looking at it...

Regards,
Jesus
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User11637
Level 2
Level 2
Ok, thanks!
I'm waiting

Andrea
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User11637
Level 2
Level 2
jferreira wrote:
Hi,
We are looking at it...

Were you able to reproduce my problem?

Andrea
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User11637
Level 2
Level 2
jferreira wrote:
Hi,

We are looking at it...

Regards,
Jesus

Thank you so much for the quick reply: after a month nothing!

Andrea
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User21913
Level 1
Level 1
Hi,

Was this issue fixed?

Andriy
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User11773
Level 4
Level 4
First like received First solution authored
Infineon lost interest in XMC?
Coming up on 3 years and no update.
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