MaJerle/stm32-usart-uart-dma-rx-tx resource
STM32 examples for USART using DMA for efficient RX and TX transmission observed · 2026-08-28
Health v2 · maintenance only
76/100
- Activity 98
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2874
- days_rel: n/a
- days_push: 16
- n_releases_24m: 0
Adoption not part of the score
1807 stars · 395 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
An application note with C example code demonstrating efficient UART/USART data reception and transmission on STM32 microcontrollers using DMA. It explains unknown-length reception with idle-line/timeout detection and CPU-free TX using circular buffers.
Use cases
- receive unknown-length UART data on STM32 with DMA
- offload UART transmission from CPU using DMA
- implement DMA ring buffer for USART RX
- handle high-baudrate serial communication on STM32
- learn UART idle line and receiver timeout interrupts
- example code for Blue Pill UART DMA
When to choose
- you are developing on STM32 and need efficient UART RX/TX with DMA
- you receive variable-length serial data and want to avoid CPU overhead
- you need reference examples for DMA half-transfer/transfer-complete and receiver-timeout events
When to avoid
- you target non-STM32 microcontrollers
- you need a general-purpose UART driver library rather than examples
- you use polling or simple interrupt-based UART at low baudrates
Facets
learning-resource · maturity stable
embedded developer-tools documentation embedded-systems hardware tutorials embedded c cpp stm32 uart usart dma embedded-c application-note ring-buffer bluepill
1 source
- readme: https://github.com/MaJerle/stm32-usart-uart-dma-rx-tx · fetched 2026-08-28 · d8f0271b8440
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| MaJerle/stm32-usart-uart-dma-rx-tx | main | 76 |
For agents
markdown · JSON · MCP: product_card(name="MaJerle/stm32-usart-uart-dma-rx-tx")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem