stm32f030 interesting USART mode - Page 1
Forum section: electronics / general

author: georges80
author_rank: Frequent Contributor
timestamp: October 04, 2018, 07:25:37 pm
content: Working on a project that I'm using the USART to output data that will go to a serial data logger.Was looking at the block diagram of the USART and noticed it has an interesting transmit filter - only moves very specific data outcheers,george.

author: andersm
author_rank: Super Contributor
timestamp: October 04, 2018, 07:32:16 pm
content: Finally some truth in advertising.Edit: Is this one of those IoT chips I've heard so much about?

author: tsman
author_rank: Frequent Contributor
timestamp: October 04, 2018, 08:25:34 pm
content: Hmm. This explains a lot. I think the I2C peripheral on a STM32F1 also has the same technology built into it.

author: Totoxa
author_rank: Newbie
timestamp: October 06, 2018, 06:53:55 am
content: What filter? I see no filter in the diagram

author: jesuscf
author_rank: Frequent Contributor
timestamp: October 06, 2018, 05:55:08 pm
content: Quote from: Totoxa on October 06, 2018, 06:53:55 amSame here. What filter?

author: ogden
author_rank: Super Contributor
timestamp: October 06, 2018, 05:58:55 pm
content: Quote from: jesuscf on October 06, 2018, 05:55:08 pmSometimes you see what you want to see, not what's actually there.Carefully look at:1) direction of arrows2) names of transmit path components

author: jesuscf
author_rank: Frequent Contributor
timestamp: October 06, 2018, 06:43:27 pm
content: Quote from: ogden on October 06, 2018, 05:58:55 pmWhat is this post supposed to be? Some sort of academic exercise? Just explain where the "filter" is for those of us that don't see it. Is the supposed "filter" the typo? Then, in my opinion, you are all trolling.

author: xaxaxa
author_rank: Regular Contributor
timestamp: October 06, 2018, 07:01:36 pm
content: transmit shit register

author: ogden
author_rank: Super Contributor
timestamp: October 06, 2018, 07:30:13 pm
content: Quote from: jesuscf on October 06, 2018, 06:43:27 pmIt's attention span test for millenials

author: MT
author_rank: Super Contributor
timestamp: October 06, 2018, 07:57:10 pm
content: This is just standard ST documents, cant see the funniness at all!

author: Siwastaja
author_rank: Super Contributor
timestamp: October 09, 2018, 10:58:48 am
content: I just couldn't spot it, even though I typically see things like this.I have been going through STM32 documentation so much for the last five years that I've become completely immune. I'm not getting angry anymore, either!On ST standards, this is high quality!If you look at the newer chips, you'll notice they have copy-pasted everything, like before, butstartedrenaming things randomly here-and-there. Good luck trying to map things together when one table says something (COMP1 is Source2), the register description listing has conflicting names (evt11, evt12, evt13 and evt14 -- which one is Source2? Is it evt12? Or register value 2? Or register value 1?), and then they just have forgotten to complete the task, so that some signals are completely left undocumented.Oh well, reverse engineering by trial and error is often the fastest way anyway.