Why timer 8 has in TI1 the CCI4 label name?

NTosi · ‎2022-06-13

Hi, I cannot understand why the TIM8 has in TI1 the label CC4I and the general purpose timer has at TI1 the label CC1I as you can see on the following pictures.

And also I want to ask what is the different between TIM8 and TIM1 as advanced control timer?

I use the STM32F446RE

Peter BENSCH · ‎2022-06-13

You seem to have found a typo which also appears in other STM32F4 reference manuals:

RM0390, Figure 110
RM0401, Figure 49
RM0402, Figure 77
RM0430, Figure 87

Logically, the signals must be assigned correctly, as can also be seen in other reference manuals, i.e.:

TI1 - IC1 - IC1PS/CC1I - OC1REF/CC1I

TI2 - IC2 - IC2PS/CC2I - OC2REF/CC2I

TI3 - IC3 - IC3PS/CC3I - OC3REF/CC3I

TI4 - IC4 - IC4PS/CC4I - OC4REF/CC4I

Thank you very much for your contribution!

@Amel NASRI Can you please forward this accordingly for review?

Regards

/Peter

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NTosi · ‎2022-06-13

My pleasure, then maybe I have found an other one. Thin zero zero after the underflow seems as a typo too.

waclawek.jan · ‎2022-06-13

We see some documentation history in action here. This is from an older rev. of RM0090:

Current RM0090 rev.19 has this figure corrected and B&W...

Based on the document changelog, this figure has been changed 25-Feb-2021 for the newest rev.19.

JW