About lgacnik97

lgacnik97 · 2024-04-05

I'm using HAL UART Receive with DMA (configured using CubeMX). I'm encountering a problem where data via UART, send in chunks, is corrupted if a chunk doesn't fit at the end of buffer perfectly. By chunks I mean a set of byte-sized data that is trans...

lgacnik97 · 2024-03-06

I'm trying to calculate the period of DMA ADC interrupt triggered when the destination buffer is completely full. As of my understanding the period is:T_dmaDone = [(T_sample + T_conv) * sampleCount * channelCount] / F_adcIn my case each rank is set t...

lgacnik97 · 2023-09-13

After inspecting blocking I2C functions from HAL libraries I found that apparently I2C blocking functions don't return "HAL_TIMEOUT" status if timeout is reached during I2C transfer. The following function does the work of verifying whether timeout w...

lgacnik97 · 2023-08-25

I'm using CMSIS-RTOSv2 middleware which I configure through CubeMX. The files generated by CubeMX are somewhat different from the ones from official CMSIS-RTOSv2 github repository where latter has all implementations for memory pool functions and my ...

lgacnik97 · 2023-07-08

I'm using STM32F7xx for my project where I use VS Code text editor in combination with CMake project build. I also use CubeMX for code generation. When I generate code using STM32CubeIDE template, the 'syscalls.c' file is generated. It provides the f...

lgacnik97 · 2024-04-14

I was able to solve this issue by figuring out I was still using "TransferComplete()" UART IT callback which contained code from previous UART reception setup that used IT only without DMA. After releasing that callback DMA writes during wrap-around ...

lgacnik97 · 2024-04-06

No, not always. As mentioned above I'm using DMA with UART to effectively catch all the bytes arriving from serial terminal. Most of the time received chars are 1-byte per key press. However, sometimes when pressing special function keys (e.g. F1 key...

lgacnik97 · 2024-04-06

The HAL implementation here is honestly a mess, can be done much more simply.Unless HAL configures DMA in some inappropriate manner I don't think HAL is to be blamed in this case. As you see from my question I'm only using CNDTR register to check spe...

lgacnik97 · 2024-04-06

I'll see what I can do but that's really pretty much it as far the DMA and UART is concerned. Before DMA I was trying out a setup with UART IT, however at certain UART baud rate sometimes bytes were not caught at proper times by the software. Also, i...

lgacnik97 · 2023-09-13

I wouldn't call this documentation error since HAL docs always provide explanation over returned status as "HAL Status". Maybe inconsistency between different but somewhat similar HAL libraries like serial protocols.Kudos for pointing out that intern...

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UART DMA Memory Corruption during Buffer Wrap-Around

Calculate ADC DMA Buffer Full Period

HAL I2C no HAL_TIMEOUT Status when Timeout Reached

No implementation for CMSIS-RTOSv2 Memory Pools From CubeMX

Printf Retarget only works with syscalls.c

Re: UART DMA Memory Corruption during Buffer Wrap-Around

Re: UART DMA Memory Corruption during Buffer Wrap-Around

Re: UART DMA Memory Corruption during Buffer Wrap-Around

Re: UART DMA Memory Corruption during Buffer Wrap-Around

Re: HAL I2C no HAL_TIMEOUT Status when Timeout Reached