Difference between revisions of "VKTECH saleae clone"

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****** IN PROGRESS ******
This is a fairly standard Cypress FX2 based 8 channel 24 MHz logic analyzer,


The device identifier is USB\VID_0925&PID_3881 so it is indistinguishable from a Saleae Logic device


This is a fairly standard FX2 based 8 channel 24 MHz logic analyzer, purchased from AliExpress, arrived in 6 days
Mine was purchased from AliExpress, arrived to the UK in just 6 days


https://aliexpress.com/item/24MHz-8-Channel-Logic-Analyzer/32814170174.html
https://aliexpress.com/item/24MHz-8-Channel-Logic-Analyzer/32814170174.html
The '''VKTECH clone''' is a USB-based, 8-channel logic analyzer (and signal generator) with up to 24MHz sampling rate.


In sigrok, we use the open-source [[fx2lafw]] firmware for this logic analyzer.
In sigrok, we use the open-source [[fx2lafw]] firmware for this logic analyzer.
See [[CWAV USBee SX/Info]] for some more details (such as '''lsusb -vvv''' output) on the device.


== Hardware ==
== Hardware ==
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* '''Transceiver''' NXP LVC245A
* '''Transceiver''' NXP LVC245A
* '''3.3V voltage regulator''': 6206A  1711/33
* '''3.3V voltage regulator''': 6206A  1711/33
* '''I2C EEPROM''': ATMHK218  24C02N
* '''I²C EEPROM''': ATMHK218  24C02N
* '''Crystal''': 24MHz
* '''Crystal''': 24MHz


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File:VKTECH PCB_rear.jpg|<small>Device, PCB rear</small>
File:VKTECH PCB_rear.jpg|<small>Device, PCB rear</small>
</gallery>
</gallery>
== Protocol ==
Since we use the open-source [[fx2lafw]] firmware for this device, we don't need to know the protocol.


== Resources ==
== Resources ==
* [http://usbee.com/software/ZXHelpFiles.zip USBee SX help files]
* [http://usbee.com/usbeesuitemanual.pdf USBee Suite manual]
* [http://usbee.com/usbeesuitesw.zip Vendor software]
* [https://blog.visucore.com/2010/5/23/jtag-using-cypress-fx2-usb Visucore Blog: JTAG using USBee SX]
* [https://blog.visucore.com/2010/5/28/pwm-on-the-usbee-hardware-using-custom-firmware Visucore Blog: PWM on the USBee with custom firmware]


[[Category:Device]]
[[Category:Device]]
[[Category:Logic analyzer]]
[[Category:Logic analyzer]]
[[Category:Supported]]
[[Category:Supported]]

Revision as of 16:14, 30 January 2018

VKTECH
File:VKTECH-clone.png
Status supported
Source code fx2lafw
Channels 8
Samplerate 24MHz
Samplerate (state) —
Triggers none (SW-only)
Min/max voltage max. 5.25V
Threshold voltage Fixed: VIH=1.4V, VIL=0.8V
Memory none
Compression none
Website [1]


This is a fairly standard Cypress FX2 based 8 channel 24 MHz logic analyzer,

The device identifier is USB\VID_0925&PID_3881 so it is indistinguishable from a Saleae Logic device

Mine was purchased from AliExpress, arrived to the UK in just 6 days

https://aliexpress.com/item/24MHz-8-Channel-Logic-Analyzer/32814170174.html

In sigrok, we use the open-source fx2lafw firmware for this logic analyzer.

Hardware

  • Main chip: Cypress CY7C68013A-56LTXC (FX2LP in QFN package)
  • Transceiver NXP LVC245A
  • 3.3V voltage regulator: 6206A 1711/33
  • I²C EEPROM: ATMHK218 24C02N
  • Crystal: 24MHz

Photos

  • Device, case

  • Device, PCB front

  • Device, PCB rear

Resources

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