C/EmbeddedSystems 1540 9.4k
C/C++ Embedded STM32 Non-Blocking Bare-Metal USART DMA Driver
Bare-metal C USART driver targeting ARM Cortex-M microcontrollers. Configures Direct Memory Access (DMA) circular buffer streams for zero-CPU telemetry ingestion at 115200 baud rate.
Zero CPU overhead DMA circular reception
Hardware interrupt service routine
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Generated Code
⚡ Instant Boilerplatec-embedded-stm32-usart-driver.ts
| 1 | #include "stm32f4xx.h" |
| 2 | #define USART_BUF_SIZE 256 |
| 3 | uint8_t usart_rx_buffer[USART_BUF_SIZE]; |
| 4 | |
| 5 | void USART2_DMA_Init(void) { |
| 6 | RCC->AHB1ENR |= RCC_AHB1ENR_DMA1EN; |
| 7 | RCC->APB1ENR |= RCC_APB1ENR_USART2EN; |
| 8 | } |
| 9 |
9 lines • 205 bytesc/embedded
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