TYPC C interface 8-channel logic analyzer

This is an 8-channel logic analyzer based on CY7C68013A-56PVXC microcontroller, cloned from the Saleae logic analyzer product. The maximum sampling frequency is 24MHz, 8 channels.

It has been board verified and supports the most commonly used official Saleae Logic 1.2.18 and the latest version Saleae  Logic 2.3.37.

When AT24C02 is flashed with original firmware, the host computer software can use Saleae original software (download address: https://saleae.com/downloads/) or open source software PulseView (see https://sigrok.org/wiki/PulseView for details) )

If USBee firmware is flashed (in fact, the VID and PID values ​​of USB devices are different), USBee can also be supported. See the attachment for the firmware. You can use products such as CH341A to flash the firmware. After flashing, solder.

There is a better introduction material that you can read: https://iamzxlee.wordpress.com/2015/09/15/usb-logic-analyzer-review/

Features of this design:

1. Adopts TYPC-C interface and supports AC line and CC line;

2. Use 3225 SMD package 24MHz crystal oscillator, which is more beautiful and reduces the device footprint;

3. Added PA0 and PA1 signal indicators to facilitate observation of operation conditions;

4. Use 74HC245 three-state 8-bit transceiver and 8 FR104 fast recovery diodes as isolation and bypass circuits to effectively protect the safety of the main control IC;

5. Change the signal acquisition input terminal from the original double-panel gold finger to a 2*5 pin socket;

6. For the convenience of welding and subsequent bare board use, all original components are laid out on one side of the PCB.

Another QFN design, quite satisfactory: