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。
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。




" k& A2 h2 M; {2 j' ^: ^描述
6 N  L" z5 Z+ c  n5 x2 Q1 ^1 xThe 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.
' r" E  f' X7 n( A* g+ q9 J  ^The devices embed peripherals allowing mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions).
0 V) [" p+ j. W7 h  {) O, d1 N; t+ lThey 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.
: d( ^* D2 `! DThey also feature standard and advanced communication interfaces such as:
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:
: v7 G" _6 z$ X7 t6 N- dVDD, VDDA voltage range: 1.71 V to 3.6 V
  l% s3 ^3 G4 u2 \+ E2 X8 j) oMathematical hardware accelerators
8 p' B7 h# ~( {: y, ^2 uCORDIC for trigonometric functions acceleration
* b8 k% V: |& {, _FMAC: filter mathematical accelerator
Memories
6 ?6 I) k# z7 R2 q" W+ p6 _% v512 Kbytes of Flash memory with ECC support, two banks read-while-write, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP
96 Kbytes of SRAM, with hardware parity check implemented on the first 32 Kbytes
Routine booster: 32 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM)
+ Q! ^+ K1 \/ }& k7 M, lExternal memory interface for static memories FSMC supporting SRAM, PSRAM, NOR and NAND memories
Quad-SPI memory interface
, C5 ~3 U& Z$ m3 M* R- {4 rReset and supply management
% y$ q1 Q  l$ h$ k! A) S# iPower-on/power-down reset (POR/PDR/BOR)
Programmable voltage detector (PVD)
' D$ E9 Z. Z+ b( GLow-power modes: sleep, stop, standby and shutdown
VBAT supply for RTC and backup registers
+ S" X% V% k8 }% HClock management
; ^0 H7 T; [/ ]- o$ o- o) c4 to 48 MHz crystal oscillator
32 kHz oscillator with calibration
Internal 16 MHz RC with PLL option (± 1%)
1 M3 x% h# t8 }& d  KInternal 32 kHz RC oscillator (± 5%)
1 `; I6 d, d) W& g$ g8 rUp to 107 fast I/Os
All mappable on external interrupt vectors
Several I/Os with 5 V tolerant capability
6 y2 o) k3 M* }( ^! xInterconnect matrix
' }) \* ~  k) _! s16-channel DMA controller
3 F& r8 }9 v  V- A5 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
' i# \, ]+ e; ^+ @0 e  ?' H7 x 12-bit DAC channels
1 L  Y& q  N( [: g/ T7 I3 x buffered external channels 1 MSPS
4 x unbuffered internal channels 15 MSPS
" P7 g- B: B* F7 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 I0 f3 @* k% f7 T3 Y5 t17 timers:
/ T; D. L7 H( v: B0 sHRTIM (Hi-Resolution and complex waveform builder): 6 x16-bit counters, 184 ps resolution, 12 PWM
' w  L0 d6 }& a6 C2 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
4 b( L3 D( v  l; B' q; T& ^6 g2 {3 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
1 g, p8 N4 b9 W2 x 16-bit timers with IC/OC/OCN/PWM, dead time generation and emergency stop
, z3 Y7 }6 q( E- q2 x watchdog timers (independent, window)
5 t$ y# y; U3 J' M3 E. u2 p1 x SysTick timer: 24-bit downcounter
2 x 16-bit basic timers
7 Q% A7 i1 b& a  r1 x low-power timer
Calendar RTC with alarm, periodic wakeup from stop/standby
9 m4 Q. K' i1 T: C/ o$ v6 ECommunication interfaces
3 x FDCAN controller supporting flexible data rate
0 I1 V4 f- G& ]% b8 ?+ v4 x I2C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from stop
- Q$ g0 t) z2 Q0 n5 x USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control)
/ P4 j9 [1 T% f1 x LPUART
4 x SPIs, 4 to 16 programmable bit frames, 2 x with multiplexed half duplex I2S interface
1 x SAI (serial audio interface)
USB 2.0 full-speed interface with LPM and BCD support
IRTIM (infrared interface)
USB Type-C™ /USB power delivery controller (UCPD)
True random number generator (RNG)
9 y' N9 r8 i1 V; kCRC calculation unit, 96-bit unique ID
Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
' x: s1 ?8 k; l( j9 I8 E4 V