RockyLogic Ant8
The RockyLogic Ant8 is an 8-channel, 500MHz logic analyzer.
See RockyLogic_Ant8/Info for more details (such as lsusb -vvv output) about the device.
Components
- Xilinx Spartan-II XC2S30 VQ100AMS0341 (FPGA; 13,824 total distributed RAM bits, 24K total block RAM)
- Xilinx XC9572XL VQ44BMN0345 10C (CPLD; 10ns pin-to-pin logic delays)
- FTDI FT245BM (USB FIFO device)
- IDT ICS501M (clock multiplier)
- Atmel AT93C66 (4kB, three-wire serial EEPROM)
- ON Semiconductor (On) HC00A PGZI (quad 2-input NAND gate)
- National/TI LP2989 (marking: 33AB 2989 IM-2.5) (micropower/low-noise, 500mA ultra low-dropout regulator)
- 20MHz crystal (for the FPGA)
Photos
RockyLogic Ant8
Device with probes
PCB, front
PCB, back
FTDI FT245BM
Atmel 93C66 EEPROM
Xilinx XC2S30
Xilinx XC9572XL
IDT ICS501M
National LP2989
ON HC00A
See also this flickr set for more PCB photos of the device.
Status
Support for this device is currently being worked on.
Protocol
See the Ant18e wiki page for a description of the Ant8/Ant16/Ant18e protocol.
DIY Ant8 probe cable
The Ant8 cable shipped with the device doesn't have the best quality probes/hooks, but you can easily make your own cable where you can attach the better-quality E-Z Hooks.
Requirements:
- 10-pin colored ribbon cable, such as this one.
- The colors match the one shipped with the Ant8 (white, gray, purple, blue, green, yellow, orange, red, brown) if you remove the 10th (black) lead. The brown lead is GND.
- A "SUB-D" connector where you can attach the ribbon cable, such as this one.
- 5 female-female jumper wires, such as these ones, which we'll cut into two halves to get 10 female connectors (only 9 needed).
- 9 short pieces of heat-shrink tubing.
- 9 E-Z Hook grippers/hooks to attach to the cable.
Photos:
Sub-D connector
Ribbon cable
Connected cable
Jumper wires
Cut jumper wires
Heat-shrink tubing
Prepared heat-shrink tubing
Soldered jumper-wires
Heated up
Finished cable with E-Z Hooks
