96Boards AI Sophon Edge Developer Board Features Bitmain BM1880 ASIC SoC

Bitmain, a company specializing in cryptocurrency, blockchain, and artificial intelligence (AI) application, has just joined Linaro, and announced the first 96Boards AI platform featuring an ASIC: Sophon BM1880 Edge Development Board, often just referred to as “Sophon Edge”.

The board conforms to the 96Boards CE specification, and include two Arm Cortex-A53 cores, a Bitmain Sophon Edge TPU delivering 1 TOPS performance on 8-bit integer operations, USB 3.0 and gigabit Ethernet.

96boards Sophon Edge
Click to Enlarge

Sophon Edge specifications:

  • SoC ASIC – Sophon BM1880 dual core Cortex-A53 processor @ 1.5 GHz, single core RISC-V processor @ 1 GHz, 2MB on-chip RAM, and a TPU (Tensor Processing Unit) that can provide 1TOPS for INT8,and up to 2 TOPs by enabling Winograd convolution acceleration
  • System Memory – 1GB LPDDR4 @ 3200Mhz
  • Storage – 8GB eMMC flash + micro SD card slot
  • Video Processing – H.264 decoder, MJPEG encoder/decoder, 1x 1080p @ 60fps or 2x 1080p @ 30fps H.264 decoder, 75fps for FHD images
  • Connectivity – Gigabit Ethernet(RJ-45), Wifi, Bluetooth
  • USB – 3x USB 3.0 for camera, U-disk..
  • I/O Expansion – 40-pin 96Boards low-speed expansion header including 2x I2S audio interfaces among others
  • Power Supply – 12V/2A
  • Dimensions – 85mm x 55mm (96Boards Consumer Edition)

One interesting aspect is that they felt the need to mix Arm and RISC-V architectures in this chip, I’m just not sure why..

Bitmain BM1880 ASIC 96Boards
Back of the board with WiFi module and eMMC flash

The Bitmain Sophon Edge developer board runs Linux and  supports DNN, CNN, RNN, and LSTM operations and models via  its TPU and with the help of various tools including:

  • BMNet: Bitmain Compiler which can convert supported AI models to internal format accelerated by Sophon TPU.
  • ONNC: ONNX Compiler which can convert ONNX format to internal format accelerated by Sophon TPU
  • Quantization Tool: Convert FP32 to INT8 and support calibration function

The board also supports modules for Arduino and Raspberry Pi, and enables low cost & low power DL/ML applications such as facial detection and recognition, facial expression analysis, object detection and recognition, vehicle license plate recognition, voiceprint recognition, etc. Supported frameworks include Caffe, ONNX, Pytorch, and Tensorflow. Lots of hardware and software documentation is already available on 96boards website, but not the Linux image just yet.

Sophon Edge can be reserved for 899 CNY in China, or $129.99 to the rest of the world. However it’s unclear when it will ship. You may also be interested in this link that details more Bitmain chips and developer products including an Edge AI module & USB AI compute stick both powered by BM1880, as well as some AI server products.

BM1880 AI Compute Stick
BM1880 AI Compute Stick
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