XC9500XL CPLD breakout board
From DP
| XC9500XL CPLD breakout board | |
|---|---|
| Codename | none |
| Status | Test production |
| Development | development forum |
| ID # | {{{id}}} |
Ever get stuck choosing the right logic chip combination or voltage level translator? Give up the hunt and create your own custom logic chip. CPLDs can give you the logic you need, with the pinout you want, while saving board space and board revisions.
The Xilinx XC9500XL family has some of the cheapest and readily-available CPLDs. This development board from Dangerous Prototypes will help you build your first custom logic chip using simple schematic entry, Verilog, or VHDL.
- XC9572XL CPLD with 72 macrocells
- 5volt tolerant inputs
- On-board 3.3volt power supply for core and pins
- Selectable 3.3volt or external supply for pins (1.8volt to 3.3volt)
- LEDs for output
- Push button for input
- Populated JTAG header
- Easy to program with the Bus Pirate
- Open source (CC-BY-SA)
Contents |
Hardware
XC9572XL CPLD
CPLD
Power supply
Button and LEDs
Pinout table
| FB4/2 | Description | Description | FB3/FB1 |
|---|---|---|---|
| GND | GND | ||
| V+ | V+ | ||
| 3V3 | IO |
PCB
We used the freeware version of Cadsoft Eagle to make the schematic and PCB. Download the latest board files from SVN.
- PCB and placement notes
- soldering advise
Partslist
Click for a full size placement image.
| Parts | Quantity | Value | Package | |
|---|---|---|---|---|
| C1,C2,C3,C4 | 4 | 0.1uF | C603 | |
| C5,C6 | 2 | 3.3uF tantalum | SMC_A | |
| D1, D2, PWR | 3 | Yellow LED | LED-805 | |
| JTAG | 1 | 0.1” Pin header | 1X06 | |
| PB | 1 | SMD button, small | TACT_SWITCH_SMALL | |
| R1 | 1 | 10K | R603 | |
| R2,R3, R4 | 3 | 2K | R603 | |
| VIO | 1 | 0.1” Pin header | M1X2 | |
| U1 | 1 | XC9572XL_VQ44 | VQ44 | |
| U2 | 1 | 3.3volt LDO voltage regulator 150mA | SOT-23-5 |
Q1 on the bottom of the PCB is for an optional 3.3volt oscillator. It feeds into a global clock pin. Some suitable values are:
Programming
Development and programming tutorials are on the main CPLD page.
Get one!
You can [get one for $00], including worldwide shipping.
Your purchases at Seeed Studio keep the open source project coming, we sincerely appreciate your support!
Resources
- CPLD breakout homepage Programming, tutorials, devices, and more
- XC9500XL CPLD quick start
- XC9500XL family manual
- XC9572XL device datasheet
- XC9536XL device datasheet (smaller version of XC9572XL)
License
- CC-BY-SA