스타워즈 깨어난 포스(Star Wars : The Force Awakens)에 새롭게 등장한 BB-8입니다.
Sphero에서 제작한 BB-8은 STM32F373CCT6을 Main MCU로 사용하였습니다.
Sphero는 기존에도 이와 비슷한 장난감인 Sphero 1을 출시한 적이 있습니다.
Sphero 1은 Cortex-M3 Core의 STM32F103CBT6을 사용하였습니다.
스타워즈 출시에 맞춰 새롭게 발표한 BB-8은 Cortex-M4 Core를 사용한 STM32F373CCT6을 적용하였습니다.
STM32F373은 FPU가 내장된 Cortex-M4 Core를 사용한 제품입니다.
최대 72Mhz의 속도로 동작하며 특징으로 16Bit Sigma Delta ADC가 내장되어 있습니다.
- Core: ARM®32-bit Cortex®-M4 CPU (72 MHz max), single-cycle multiplication and HW division, DSP instruction with FPU (floating-point unit) and MPU (memory protection unit)
- 1.25 DMIPS/MHz (Dhrystone 2.1)
- 64 to 256 Kbytes of Flash memory
- 32 Kbytes of SRAM with HW parity check
- CRC calculation unit
- Reset and power management
- Voltage range: 2.0 to 3.6 V
- Power-on/Power down reset (POR/PDR)
- Programmable voltage detector (PVD)
- Low power modes: Sleep, Stop, Standby
- VBATsupply for RTC and backup registers
- Clock management
- 4 to 32 MHz crystal oscillator
- 32 kHz oscillator for RTC with calibration
- Internal 8 MHz RC with x16 PLL option
- Internal 40 kHz oscillator
- Up to 84 fast I/Os
- All mappable on external interrupt vectors
- Up to 45 I/Os with 5 V tolerant capability
- 12-channel DMA controller
- One 12-bit, 1.0 μs ADC (up to 16 channels)
- Conversion range: 0 to 3.6 V
- Separate analog supply from 2.4 up to 3.6
- Three 16-bit Sigma Delta ADC
- Separate analog supply from 2.2 to 3.6 V, up to 21 single/ 11 diff channels
- Three 12-bit DAC channels
- Two fast rail-to-rail analog comparators with programmable input and output
- Up to 24 capacitive sensing channels
- 17 timers
- Two 32-bit timers and three 16-bit timers with up to 4 IC/OC/PWM or pulse counters
- Two 16-bit timers with up to 2 IC/OC/PWM or pulse counters
- Four 16-bit timers with up to 1 IC/OC/PWM or pulse counter
- Independent and system watchdog timers
- SysTick timer: 24-bit down counter
- Three 16-bit basic timers to drive the DAC
- Calendar RTC with Alarm and periodic wakeup from Stop/Standby
- Communication interfaces
- CAN interface (2.0B Active)
- Two I2Cs supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from STOP
- Three USARTs supporting synchronous mode, modem control, ISO/IEC 7816, LIN, IrDA, auto baud rate, wakeup feature
- Three SPIs (18 Mbit/s) with 4 to 16 programmable bit frames, muxed I2S
- HDMI-CEC bus interface
- USB 2.0 full speed interface
- Serial wire devices, JTAG, Cortex®-M4 ETM
- 96-bit unique ID