Sipeed RV 디버거 플러스 -JTAG+UART BL702

(Sipeed RV-debugger-plus JTAG+UART BL702)

개요

  • 본 제품은 Sipeed RV 디버거 플러스 -JTAG+UART BL702입니다.
  • Bouffalo Lab사의 BLE/Zigbee RISC-V BL702 칩에 "open-ec" 에서 영감 받은 펌웨어를 탑재하여, FT2232D 칩을 에뮬레이션하여 JTAG 및 UART 디버거로 사용할 수 있습니다.
  • 듀얼 시리얼 포트 디버거 및 추천하지는 않지만 블루투스 디버거 등으로 구현할 수 있습니다.

특징

  • BL702, BL704, and BL706 key features and specifications:

    • MCU Core – 32-bit RISC-V Core with FPU up to 144 MHz
    • Memory – 132KB RAM
    • Storage – 192KB ROM, 1Kbit eFuse
    • External Memory/Storage – Support for XIP pSRAM and QSPI flash
    • Connectivity
      • Ethernet RMII interface
      • Bluetooth 5.0 Low Energy up to 2 Mbps, Long Range 500/125Kbps
      • Zigbee 3.0 / IEEE 802.15.4
      • Support Wi-Fi/Bluetooth/Zigbee coexistence
      • 2.4 GHz RF transceiver with integrated RF balun, PA/LNA
    • USB – 1x USB 2.0 FS device interface
    • Other I/Os
      • SPI master/slave, 2x UART (Support ISO 17987), I2C master
      • Audio – I2S master/slave
      • 5x PWM channels
      • Quadrature decoder
      • Key-Scan interface
      • 12-bit general ADC, 10-bit general DAC
      • PIR (Passive Infra-Red) detection
      • 15 (BL702) or 23 (BL704) or 31 (BL706) GPIOs
      • IR remote control interface
    • Security
      • Secure boot, secure debug
      • XIP QSPI On-The-Fly AES Decryption (OTFAD)
      • AES 128/192/256, MD5, SHA-1/224/256
      • TRNG (True Random Number Generator)
      • PKA (Public Key Accelerator)
    • Clocks – Support XTAL 32MHz, XTAL 32/32.768KHz; Internal RC 32KHz & 32MHz oscillator; internal system PLL & audio PLL
    • Debugging – JTAG
    • Power Modes – Off; Hibernate (RTC/GPIO wakeup); Power Down Sleep (Flexible retention); Active
    • Package Type
      • QFN32 (BL702)
      • QFN40 (BL704)
      • QFN48 (BL706)

    The only difference between BL702 and its larger siblings, BL704 and BL706, only seems to be the number of GPIOs. The chips are designed for low-power IoT applications, BLE devices, Zigbee devices,  Smart Home applications, and remote controls.

  • USB to TLL debug boards are meant to be simple and that’s the case for Sipeed latest BL702 board as it comes with a 12-pin connector with Tx/Rx for UART, 8 signals for JTAG, plus 5V, 3.3V, and GND power signals. We can also see pads for Tx/Rx/CTS, a boot button, a crystal oscillator, and a USB-C port to connect to the host computer.

문서

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