Table of Contents
Project details
| Name: | GECKO3docking | |
|---|---|---|
| Maintainer | orphaned | |
| Revision: | 01.2009 | |
| Development status: | stable | |
| Compatibility: | GECKO3 / GECKO4 (untested) | |
GECKO3 docking
The docking board was developed for SoPC applications in combination with the powerful GECKO3main you get a smart platform for your development projects.
Features
- RS232 as a debug interface (with Rx/Tx crossing)
- Ethernet (RJ 45) for network communication
- RS232 for serial communication (without level converter)
- Micro SD-Card reader over SPI (shared with SPI 1)
- Three SPI connectors
- One I2C connector
- 4 Bytes length matched GPIOs (max. 1 mm difference)
- GPIO header is compatible to Agilent connector (with clk and power included)
- VBAT On-board or external powering
- Two external ckl inputs (SMA, Agilent header or DIP 8 Socked)
- Board powering by a standard adapter with a voltage range of 10V up to 18V
Signalization
- LED red : powered by the adapter
- LED green : power good (on if power is good / off if power is less than 90% of 3.3V)
Interface description
External clock imputs
The external clock inputs are connected to some special clock pins on the FPGA on the GECKO3main module. That allows us to maintain better timings. There is a DIP8 socket on input JP3 (EXTCLK1) that can be used to produce a clock. If the GECKO4main module is connected, make sure you comply with the clock specifications (external_clocks).
Schematic
Pins on IO-Bus 1 connector
| Pin | Name | Direction | GECKO3 | GECKO4 | Discription | |
|---|---|---|---|---|---|---|
| EXTCLK1 | EXTCLK1 | IN | AE13 | AF14 (Lock: AA9) | External clock input 1 | |
| EXTCLK2 | EXTCLK2 | IN | AD13 | AE14 (Lock: AB9) | External clock input 2 | |
| GPIO1_16 | P4_19 | IN / OUT | AB23 | |||
| GPIO1_17 | P4_18 | IN / OUT | V20 | |||
| GPIO1_18 | P4_17 | IN / OUT | U20 | |||
| GPIO1_19 | P4_16 | IN / OUT | U21 | |||
| GPIO1_20 | P4_15 | IN / OUT | V23 | |||
| GPIO1_21 | P4_14 | IN / OUT | U22 | |||
| GPIO1_22 | P4_13 | IN / OUT | V24 | |||
| GPIO1_23 | P4_12 | IN / OUT | T21 | |||
| GPIO1_24 | P4_11 | IN / OUT | U23 | |||
| GPIO1_25 | P4_10 | IN / OUT | T22 | |||
| GPIO1_26 | P4_09 | IN / OUT | U24 | |||
| GPIO1_27 | P4_08 | IN / OUT | R21 | |||
| GPIO1_28 | P4_07 | IN / OUT | T23 | |||
| GPIO1_29 | P4_06 | IN / OUT | R22 | |||
| GPIO1_30 | P4_05 | IN / OUT | ||||
| GPIO1_31 | P4_04 | IN / OUT | ||||
On GECKO4main the clocks are only in sync if the corresponding lock flag is set!