感谢管理“Seven”，因为工作原因不能实地参加STM32的深圳会议，在seven管理的热心组织下，通过线上直播让我了解了这一次的技术盛况，从开始的技术讲解到后期的竞赛直播，各个阶段都充分体现了专业性、素养性。不但使我学习了知识，同时也更好的了解了STM32的相关技术和使用场景，对我个人是一个很大的提升，在此对ST公司和seven管理再次表示感谢。
0 B1 q' D! Z# d" }/ n3 X0 k( Q# D在黑客松的比赛中通过各个参赛队伍的作品，看到了不同的创意，产品技术是固定的，关键看人怎么使用。同样的平台，不同的思考方向，差异化的使用方法，打造出不同的产品方案。十分棒。在观看的过程中有幸获得抽奖奖品“STM32G474”，目前已经收到。谢谢。
希望以后的活动更加丰富，开发出更多的产品。
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( S9 C, |- ~; F4 J. Y: D2 v描述
The STM32G474xB/xC/xE devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 170 MHz. The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm single-precision data-processing instructions and all the data types. It also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application’s security.
These devices embed high-speed memories (512 Kbytes of Flash memory, and 128 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI Flash memory interface, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
The devices also embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, securable memory area and proprietary code readout protection.
The devices embed peripherals allowing mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions).
They offer five fast 12-bit ADCs (5 Msps), seven comparators, six operational amplifiers, seven DAC channels (3 external and 4 internal), an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timers, three 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and one 16-bit low-power timer, and high resolution timer with 184 ps resolution.
They also feature standard and advanced communication interfaces such as:
% [8 S: m" }; r+ }! B6 b3 Z% o所有功能
Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory, frequency up to 170 MHz with 213 DMIPS, MPU, DSP instructions
Operating conditions:
: A' Y8 }& a! R# a$ R8 W: }VDD, VDDA voltage range: 1.71 V to 3.6 V
Mathematical hardware accelerators
3 A- N9 r) l  _* C1 z# K9 `CORDIC for trigonometric functions acceleration
FMAC: filter mathematical accelerator
Memories
6 o. k. f: ~" O* S7 X" F512 Kbytes of Flash memory with ECC support, two banks read-while-write, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP
  G0 t/ l+ V( K7 B/ V96 Kbytes of SRAM, with hardware parity check implemented on the first 32 Kbytes
6 X, C* b8 D6 q, O  p9 Z* VRoutine booster: 32 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM)
External memory interface for static memories FSMC supporting SRAM, PSRAM, NOR and NAND memories
Quad-SPI memory interface
! V! s* P, g9 j- C  s4 y7 KReset and supply management
3 D$ ?3 }- K* l6 l- R8 H5 f* VPower-on/power-down reset (POR/PDR/BOR)
  d- x/ j/ x7 l+ }! z  |Programmable voltage detector (PVD)
% \. q$ ?. x; E& L" B; LLow-power modes: sleep, stop, standby and shutdown
VBAT supply for RTC and backup registers
" @8 Y& ~* q7 h# W$ K+ E- z. MClock management
4 to 48 MHz crystal oscillator
9 k7 w5 n7 M6 B32 kHz oscillator with calibration
Internal 16 MHz RC with PLL option (± 1%)
$ _& M# k  O6 }$ n" @( x9 jInternal 32 kHz RC oscillator (± 5%)
Up to 107 fast I/Os
All mappable on external interrupt vectors
1 U1 U# a3 Q" ^7 g2 kSeveral I/Os with 5 V tolerant capability
7 U; J4 ~2 C4 ~1 I3 KInterconnect matrix
- E* X( g) O6 ~9 A; j: t) o16-channel DMA controller
  B7 ^, I2 W' t& U. _- ]5 \* n5 x 12-bit ADCs 0.25 µs, up to 42 channels. Resolution up to 16-bit with hardware oversampling, 0 to 3.6 V conversion range
7 x 12-bit DAC channels
7 i' B8 k+ Y3 g2 |8 y/ G' r3 x buffered external channels 1 MSPS
4 x unbuffered internal channels 15 MSPS
7 x ultra-fast rail-to-rail analog comparators
6 x operational amplifiers that can be used in PGA mode, all terminals accessible
Internal voltage reference buffer (VREFBUF) supporting three output voltages (2.048 V, 2.5 V, 2.95 V)
9 D4 F$ X, o! q17 timers:
HRTIM (Hi-Resolution and complex waveform builder): 6 x16-bit counters, 184 ps resolution, 12 PWM
! y5 J, r# D. k- c2 r$ Y! u+ K, s2 x 32-bit timer and 2 x 16-bit timers with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
/ h0 I, [/ b7 L1 b3 x 16-bit 8-channel advanced motor control timers, with up to 8 x PWM channels, dead time generation and emergency stop
1 x 16-bit timer with 2 x IC/OCs, one OCN/PWM, dead time generation and emergency stop
2 x 16-bit timers with IC/OC/OCN/PWM, dead time generation and emergency stop
2 x watchdog timers (independent, window)
1 x SysTick timer: 24-bit downcounter
2 x 16-bit basic timers
1 x low-power timer
( n- D; m7 n/ \Calendar RTC with alarm, periodic wakeup from stop/standby
! {9 @2 T6 i, A; B- o3 pCommunication interfaces
3 x FDCAN controller supporting flexible data rate
' K3 W" O, N1 z: @' ~4 x I2C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from stop
5 x USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control)
3 C+ a: _# |( O( I) `" `/ |1 x LPUART
* X. y# Z" r. u8 |4 ^4 z6 K4 x SPIs, 4 to 16 programmable bit frames, 2 x with multiplexed half duplex I2S interface
1 x SAI (serial audio interface)
0 O6 K+ D0 \. B; V4 ZUSB 2.0 full-speed interface with LPM and BCD support
IRTIM (infrared interface)
USB Type-C™ /USB power delivery controller (UCPD)
' I2 F) S2 s! S! W3 Q- K9 ?4 sTrue random number generator (RNG)
CRC calculation unit, 96-bit unique ID
. A2 ?- e0 ?* ~. iDevelopment support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
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