Hantek 1008C

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Hantek 1008C
Hantek 1008C.png
Status planned
Channels 8
Samplerate 2.4MS/s (see notes)
Samplerate (state) ?
Triggers ?
Min/max voltage ?
Memory ?
Compression ?
Website hantek.com

The Hantek 1008C is a USB-based 8-channel oscilloscope, with 8 channel digital pattern generator.

See Hantek 1008C/Info for some more details (such as lsusb -vvv output) on the device.

Hardware

  • CPU: ST Microelectronics STM32F103C6T6A
  • Low-dropout voltage regulator: Advanced Monolithic Systems AMS1117-3.3
  • 8-channel analog multiplexer/demultiplexer: NXP Semiconductor 74HCT4051D (1 per analog channel)
  • Octal 3-state buffer: Fairchild Semiconductor MM74HC244SJ (in the path of digital outputs)
  • 8-bit shift register with 3-state output: 74HC595 (3 total)
  • Dual opamp: in MSOP-8 package, Texas Instruments unknown model (chip markings "TI 25 AVG") (1 per analog channel)

Photos

Protocol

Need to continuously send commands to the OUT Endpoint, and for each command receive the result from the IN Endpoint (both Endpoints can transfer max 64 bytes). The device got logically disconnected automatically if not receive any command after 7 seconds.

List of commands (incomplete)

  • AA -> set which channel to enable (ie. AA 01 01 00 00 00 00 00 00 enable channel 1 and 2)
  • A2 -> set voltage level for each channel (ie. A2 03 03 03 03 03 03 03 03 apply +-15V range on each channel)
  • A3 -> set sampling rate (ie. A3 11)

Sample of initialization cycle

  • B0
  • F3
  • B901BF040000
  • B700
  • BB0800
  • B5
  • B6
  • E5
  • F7
  • F8
  • FA
  • F5
  • A008
  • AA0101010101010101
  • A311
  • C10000
  • A70000
  • AC01F40009C50009C5

Start of waiting cycle for data to be ready into the buffers

F3 A2 01 01 01 01 01 01 01 01 A4 01 C0 C2 A5 5A A5 5A

Buffers Reading Cycle

  • C6 02 (return Buffer 1 size)
  • A6 02 (acquire 64 bytes, 32 samples of 12 bits each, repeated 60 times get 2000 samples)
  • C6 03 (return Buffer 2 size)
  • A6 03 (acquire 64 bytes, 32 samples of 12 bits each, repeated 60 times get 2000 samples)

Notes

  • Sample rate: maximum measured 2.4MS/s if enable just 1 channel. Drop down to 1.2MS/s if enable 2 channels.
  • Acquisition: on each scan acquire 4000 samples from 2 buffers (2000 samples each buffer)

Resources