HT USBee-AxPro
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| Status | supported |
|---|---|
| Source code | fx2lafw |
| Channels | 8 |
| Samplerate | 24MHz |
| Samplerate (state) | — |
| Triggers | none (SW-only) |
| Min/max voltage |
Digital: -1V — +6V Analog: ±10V (±20V max) |
| Threshold voltage | Fixed: VIH=1.6V, VIL=1.4V |
| Memory | none |
| Compression | none |
The HT-USBee AxPro is a USB-based, 8-channel logic analyzer with up to 24MHz sampling rate, and with 1 additional analog channels. It is able to switch between USBee AX-Pro, Salea 8 Logic 8 and Altera Usb blaster mode via a button. When pressing the button the usb id changes.
It is a clone of the CWAV USBee AX-Pro.
In sigrok, we use the open-source fx2lafw firmware for this logic analyzer.
Note: Only the logic analyzer functionality is supported so far, analog support is work in progress.
Hardware
- Main chip: Cypress CY7C68013A-56LTXC (FX2LP)
- I2C EEPROM 1: Microchip 24LC641
- I2C EEPROM 2: Microchip 24LC02B
- Auxiliary 8051 chip: ST stm8s003f3 (purpose is unknown)
- Supply voltage regulator: Advanced Monolithic Systems AMS1117-3.3
- Analog-to-Digital converter: Texas Instruments TLC5510I
- Analog input amplifiers: Analog Devices AD8065 (SMD marking "HRA")
- Analog amplifiers negative supply: Texas Instruments LMC7660
- Crystal: 24MHz
- ...
The analog channels are multiplexed by relay or solid-state IC to one ADC.
FX2LP pin mappings
| # | Pin | Destination | Remark |
|---|---|---|---|
| PD0..7 | ADC_D1..8 | ADC data output |
Photos
Protocol
Since we use the open-source fx2lafw firmware for this device, we don't need to know the protocol.