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STM32 » Histórico » Revisão 2

Revisão 1 (Gabriel Lima, 23/03/2020 16:07 h) → Revisão 2/6 (Gabriel Lima, 23/03/2020 16:16 h)

h1. STM32 

 O modelo de STM32 quee foi utilizado nos desenvolvimentos foi o STM32F407VGT6, mais especificamente, a placa de desenvolvimento STM32F4 DISCOVERY, a mesma utilizada nos robôs de 2019 da SSL e nas placas de comunicação de 2019 da SSL e da VSS. 

 h2. Features 

 • 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 168 MHz, memory protection unit, 210 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions 
 • Memories 
   – Up to 1 Mbyte of Flash memory 
   – Up to 192+4 Kbytes of SRAM including 64-Kbyte of CCM (core coupled memory) data RAM 
   – Flexible static memory controller supporting Compact Flash, SRAM, PSRAM, NOR and NAND memories 
 • LCD parallel interface, 8080/6800 modes 
 • Clock, reset and supply management 
   – 1.8 V to 3.6 V application supply and I/Os 
   – POR, PDR, PVD and BOR 
   – 4-to-26 MHz crystal oscillator 
   – Internal 16 MHz factory-trimmed RC (1% accuracy) 
   – 32 kHz oscillator for RTC with calibration 
   – Internal 32 kHz RC with calibration 
 • Low-power operation 
   – Sleep, Stop and Standby modes 
   – VBAT supply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM 
 • 3×12-bit, 2.4 MSPS A/D converters: up to 24 channels and 7.2 MSPS in triple interleaved mode 
 • 2×12-bit D/A converters 
 • General-purpose DMA: 16-stream DMA controller with FIFOs and burst support 
 • Up to 17 timers: up to twelve 16-bit and two 32-bit timers up to 168 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input 
 • Debug mode 
   – Serial wire debug (SWD) & JTAG interfaces 
   – Cortex-M4 Embedded Trace Macrocell™ 
 • Up to 140 I/O ports with interrupt capability 
   – Up to 136 fast I/Os up to 84 MHz 
   – Up to 138 5 V-tolerant I/Os 
 • Up to 15 communication interfaces 
   – Up to 3 × I2C interfaces (SMBus/PMBus) 
   – Up to 4 USARTs/2 UARTs (10.5 Mbit/s, ISO 7816 interface, LIN, IrDA, modem control) 
   – Up to 3 SPIs (42 Mbits/s), 2 with muxed full-duplex I2S to achieve audio class accuracy via internal audio PLL or external clock 
   – 2 × CAN interfaces (2.0B Active) 
   – SDIO interface 
 • Advanced connectivity 
   – USB 2.0 full-speed device/host/OTG controller with on-chip PHY 
   – USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI 
   – 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII 

 h2. Circuit Diagram 

 !STM32F407_Diagram.jpg! 

 h2. Pinout 

 !STM32F4DISCOVERY_Pinout.png!