About Xenon02

Xenon02 · 2024-07-22

Hello ! I've been working on with LIS3MDL a magnetometer from STM, but there was one problem because reading X,Y,Z it was showing good values but sometimes instead of value it just spitted 0, for example X = 0.14, Y = 0.30, Z = 0.14 and sometimes it ...

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 · 2024-07-22

@unsigned_char_array wrote:@Xenon02 wrote:Okey, so correct me here or tell me what I am right and on which part not. So the function either I give him uint8_t or int8_t it should give me the same bit data right ?? Like 01011100 the same bit values wi...

Xenon02 · 2024-07-22

Okey, so correct me here or tell me what I am right and on which part not. So the function either I give him uint8_t or int8_t it should give me the same bit data right ?? Like 01011100 the same bit values will be pushed in uint8_t and in int8_t so b...

Xenon02 · 2024-07-22

I do have a question though. Because the function : HAL_I2C_Mem_Read(&hi2c1, LIS3MDLTR_Address, LIS3MDLTR_X_Y_Z_Axis, 1, data, 6, HAL_MAX_DELAY);Is taking the address of variable "data". Isn't it that the same bite values are placed in this variable...

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...

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HAL issue with int8_t instead of uint8_t

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)

Re: HAL issue with int8_t instead of uint8_t

Re: HAL issue with int8_t instead of uint8_t

Re: HAL issue with int8_t instead of uint8_t

Re: UART how the overflow works ?

Re: UART how the overflow works ?