About Xenon02

Xenon02 · 2024-01-06

Hello ! I've been wondering, how UART works in receiving side ? I have like maybe 4/5 questions ? -> What if I have a RX buffer that is full ? The flag is on and I didn't read the data. Then the new data comes after sometime, will it overwrite my dat...

Xenon02 · 2024-01-06

Hello ! My STM board is STM32-L073RZ. I've had a lot of problem with HC-06, tried to somehow send the command "AT" or "AT\r\n", but I didn't get anything back. The bluetooth wasn't connected to any device because the diode was blinking. - I tried cha...

Xenon02 · 2023-12-14

Hi ! I am currently using STM32 Nucleo-L073RZThe problem is that I've set it to 3 s but it executes after 8 s. In a different application it finished exactly after 3 s. I just don't understand what went wrong. The code looks like that : What main has...

Xenon02 · 2023-11-22

Hello ! I've got a problem because I tried to check the SDA and SCL pins like in the picture : Sorry for the paint picture (the oscilloscope was during classes so I don't have it right now).The output was all the time noises even thought the code wa...

Xenon02 · 2023-11-21

Hello ! [STM32L073RZ]I've been thinking what is this ADC DMA continuous request. I don't really much know what it is exactly and why it must be enabled. I know there are 2 modes of DMA, which is normal and circular in which normal starts only once an...

Xenon02 · 2024-01-08

> "What you wrote above applies to so called half duplex mode, when only one side can send and the other side must listen. There indeed are systems that work in this mode (think RS-485).But often the UART is used in full duplex mode, when both TX and...

Xenon02 · 2024-01-08

You know what thinking about it, maybe my post was to long.But still this answer bugs me : "Receive must be called before data on the line is transmitted. There isn't a buffer or anything that stores it until the receive function is called.".Hmmm You...

Xenon02 · 2024-01-07

Wait a minute : > "Receive must be called before data on the line is transmitted. There isn't a buffer or anything that stores it until the receive function is called."Receive must be called before data is transmited in line ? Usually I see this exam...

Xenon02 · 2024-01-07

I've read TDK post and most of it I understood, at least the part with what flag is what etc. But the speed of how the code is read etc, was a mystery. Okey example I have a code and I type this : //some initials after that UARTHAL_UART_Transmit(); H...

Xenon02 · 2024-01-07

I mean I know it looks lame ... I also know it is just simple two commands, I was just wondering how it always gets information in time, usually I think nobody thinks about it but I just wondered that's all so these questions came up. Like didn't you...

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UART how the overflow works ?

UART doesn't receive data from HC-06

Timer for 3 s interrupts after 8 s

I2C error in sending data (for the oscilloscope)

What is DMA circular mode and in ADC DMA continuous request

Re: UART how the overflow works ?

Re: UART how the overflow works ?

Re: UART how the overflow works ?

Re: UART how the overflow works ?

Re: UART how the overflow works ?