IMXRT1024 UART Hardware Control Parameters (in Code and Reference Manual) - 2

Lukas_Frank — Tue, 10 Aug 2021 13:18:11 GMT

Hi All,

This post is continuation of my first post ( First Post ). System tagging my post as spam. Like you see below:

My questions:

Q1(+): I read it in RM but it is not like the other UARTs. It is a sophisticated one. Thanks.

Q2: What do you exactly mean with "the related pin should not be controlled automatically" ? Will be the pin high signal to the oscilloscope when I debug the code and config.enableRxRTS=true line is run and pass next step?

Q3: Data communication is failing when I use my UART Example that created from scratch(by the way I am working on two example. One of them is my own example and another one is SDK Default hardware control example. And, I am trying to understand what is going on). Simply, it uses UART_WriteByte method in infinite while loop and writing "0x10" byte to the TX pin succesfully. Also, I am observing data flow in oscilloscope successfully. When I set config.enableRxRTS = true and config.enableTxCTS = true, datas is not successfully observing 11110000 form in oscilloscope, it is always staying high form. But when I set config.enableRxRTS = true and config.enableTxCTS = false, datas is successfully observing as 11110000 form in oscilloscope. Why config.enableTxCTS = true effects like that? Will I am not able to use TxCTS in my board?

Q4(+): I am just trying to do that on my board. No like in the section 44.3.4.4. Thanks.

Q5: Nooo, absolutely not. RTS pin is asserting as high form one bit before the data bit transmission start. I am writing 1010101....1010(size 256) to the TX pin in my code to observe better in oscilloscope. So I just changed the transferTxData array's content in default SDK example. But it is always staying high bit form (1). What is that mean?

Thanks and Regards.

topic IMXRT1024 UART Hardware Control Parameters (in Code and Reference Manual) - 2 in i.MX RT Crossover MCUs

IMXRT1024 UART Hardware Control Parameters (in Code and Reference Manual) - 2