At present, STM32 series of STM32 is the main control chip of UAV with high adoption rate in China. In this regard, STM32 is very smart. It has sponsored the National Undergraduate Electronic Design Competition for a long time. The main control chip of UAV project recommended by the competition is STM32. Students are familiar with its main control platform, and they will naturally choose it when they want to do UAV after work.

STM32 series has STM32 F0 / F1 / F2 / F3 / F4 / F7 / l0 / L1 / L4 product series, among which STM32 F4 series is widely used in UAV.

Stm32f4 Series MCU based on arm cortex-m4 adopts NVM process of STM semiconductor and art accelerator, and its processing performance reaches 225 DMIPS / 608 coremark when it is executed by flash memory at the working frequency of 180 MHz, which is the high benchmark test score of all microcontroller products based on Cortex-M core so far.

Due to the dynamic power adjustment function, the current consumption range of flash memory is 89 μ A / MHz of stm32f410 to 260 μ A / MHz of stm32f439.

Stm32f4 series includes eight compatible digital signal controller (DSC) product lines. It is a perfect combination of MCU real-time control function and DSP signal processing function

Advanced Series

Stm32f469 / 479 – 180 MHz CPU / 225 DMIPS, up to 2 Mb dual area flash memory, with SDRAM and QSPI interface, chrome art accelerator ™ LCD-TFT controller and mpi-dsi interface

Stm32f429 / 439 – 180 MHz CPU / 225 DMIPS, up to 2MB dual area flash memory, SDRAM interface, chrome art accelerator ™  And LCD-TFT controller

Stm32f427 / 437 – 180 MHz CPU / 225 DMIPS, up to 2 Mb dual area flash memory, SDRAM interface, chrome art accelerator ™ Serial audio interface, higher performance, lower static power consumption

Basic series

Stm32f446 – 180 MHz / 225 DMIPS, up to 512 KB flash, Dual Quad SPI and SDRAM interface

Stm32f407 / 417 – 168 MHz CPU / 210 DMIPS, up to 1MB flash, added Ethernet MAC and camera interface

Stm32f405 / 415 – 168 MHz CPU / 210 DMIPS, up to 1MB flash, advanced connectivity and encryption

Basic series

Stm32f411 – 100 MHz CPU / 125 DMIPS, with excellent power efficiency, larger SRAM and new intelligent DMA, optimized power consumption of data batch processing (dynamic efficiency series with batch acquisition mode)

· stm32f410 – 100 MHz CPU / 125 DMIPS, which sets a new milestone for excellent power efficiency performance (89 μ A / MHz and 6 μ a in shutdown mode), adopts new intelligent DMA and optimizes the power consumption of data batch processing (dynamic efficiency in batch acquisition mode) ™ Series), equipped with true random number generator, low power timer and DAC

Stm32f401 – 84 MHz CPU / 105 DMIPS, small size, low cost solution, with good power efficiency (Dynamic Efficiency Series)