Saleae Logic¶
Saleae Logic¶
| Status | supported |
| Source code | fx2lafw |
| Channels | 8 |
| Samplerate | 24MHz |
| Samplerate (state) | — |
| Triggers | none (SW-only) |
| Min/max voltage | -0.5V — 5.25V |
| Threshold voltage | Fixed: VIH=2.0V—5.25V, VIL=-0.5V—0.8V |
| Memory | none |
| Compression | none |
| Website | saleae.com |
The Saleae Logic is a USB-based, 8-channel logic analyzer with up to 24MHz sampling rate.
The unit itself is very small, and has a USB 2.0 port connecting it to a PC (and powering the unit) and a connector for the 8 + 1 probe set. It is built around a Cypress EZ-USB FX2LP microcontroller — an 8051-compatible chip with built-in USB 2.0 controller. It can sample 8 channels up to 24MHz.
In sigrok, we use the open-source fx2lafw firmware for this logic analyzer.
See Saleae Logic/Info for more details (such as lsusb -vvv output) about the device.
See Saleae Logic16 for the successor product of the Saleae Logic.
Hardware¶
- Main chip: Cypress CY7C68013A-56PVXC (FX2LP)
- ESD protection: ST DVIULC6-4SC6
- 3.3V voltage regulator: ST LD33C
- I2C EEPROM: Microchip 24LC00
- Crystal: 24MHz
The case has four Torx T2 screws you need to remove in order to be able to open it.
Photos¶
Saleae Logic
Saleae Logic
Saleae Logic Collection
Saleae Logic
Saleae Logic Opened
Saleae Logic Pcb Front
Saleae Logic Pcb Back
Protocol¶
Since we use the open-source fx2lafw firmware for this device, we don't need to know the protocol.
However, for those interested in this, see our old vendor protocol docs.