The TS-752 demonstrates the flexibility of a Technologic Systems SoM by connecting FPGA driven IO pins to relays, buffered digital inputs, buffered digital outputs, and RS-485 drivers. It also provides an RS-232 driver for the serial console. A TS-ENC750 with a TS-7500 or TS-7550 can provide a complete solution for many embedded applications.
2 Getting Started
The TS-752 is powered using the P8 connector (8 pin terminal block) shown here. For more details about standard functionality on this board, see your ARM board page. Console is available from the DB9 connector as RS232 at 115200 baud, 8n1, and with no flow control.
3.1 Host-board Recovery
Although it is easy to get a TS-7500 board into an unbootable state during development if you botch a modification, it is equally easy to use the TS-752 to recover the default startup. To do so, place the JP2 jumper on the TS-752 and reset the board. In approximately 3 seconds, the board will have fastbooted to the TS-752 flash and present a shell prompt. To recover the default initrd and linuxrc, enter the command "spisave", remove the JP2 jumper, and reboot back to a restored to factory default configuration. The procedure is identical on the TS-7550 except you use the "nandsave" command since the TS-7550 has no SPI flash onboard.
The TS-752 features 3 SPDT relays rated for 5A at 277VAC or 30VDC that the user can toggle through DIO. You can drive these DIO high or low to toggle the relays, or use the ts.subr file which lets you set a 3 bit value to control the relays.
The PCH-105D2H relay is normally open, closes in 10ms, and opens in 5ms. A very safe assumption would be that it will switch after 20ms.
# if you are in debian . /initrd/ts7500.subr # or if you are in initrd (may already be sourced) . /ts7500.subr # Disable all relays setrelay 0x0 # Enable all relays setrelay 0x7
4.1 Terminal Strip Connectors
|Note:||The OSTTJ0911530 is a compatible mate with the 9 pin terminal block. The OSTTJ0811530 is compatible with the 8 pin terminal block.|
4.2 DB9 Port
|2||CONSOLE_RXD||RS232 Console RX|
|3||CONSOLE_TXD||RS232 Console TX|
4.3 40 Pin Header
Note that 4 pins on the TS-7500 or TS-7550 will hang off. These include JTAG_DOUT, JTAG_TMS, JTAG_CLK, and JTAG_DIN. These are only needed for factory programming only.
_______ |01 | 02| |03 | 04| |05 | 06| |07 | 08| |09 | 10| |11 | 12| |13 | 14| |15 | 16| |17 | 18| |19 | 20| |21 | 22| |23 | 24| |25 | 26| |27 | 28| |29 | 30| |31 | 32| |33 | 34| |35 | 36| |37 | 38| |39 | 40| ---------
|1||DIO_05 / Mode2||Used to toggle boot device (SD / offboard flash)|
|5||DIO_09||#RESET - drive high to reset the board|
|7||DIO_11 / CS#||SPI CS#|
|18||DIO_22||XUART2 RX (TEMP_CS#)|
4.4 DIO Header
_______ |01 | 02| |03 | 04| |05 | 06| |07 | 08| |09 | 10| |11 | 12| |13 | 14| |15 | 16| |17 | 18| |19 | 20| ---------
4.5 COM Ports
The XUART ports will be controlled with xuartctl. By default they will not have devices in /dev/.
|ttyS0||RS232||pins 3 (TX) and 2 (RX) of the #DB9 Port|
|XUART0||RS232||pins 7 (TX) and 8 (RX) of the #DB9 Port|
|XUART0||TTL||pin 15 (TX Only) of the #DIO Header|
|XUART1||RS485||pins 1 (+) and 6 (-) of the #DB9 Port|
|XUART1||TTL||pins 2 (TX Only) and 8 (TX Enable) of the #DIO Header.|
|XUART2||TTL||pin 14 (TX Only) of the #DIO Header|
|XUART3||TTL||pin 10 (TX Only) of the #DIO Header|
|XUART4||TTL||pin 6 (TX Only) of the #DIO Header|
|XUART5||TTL||pin 16 (TX Only) of the #DIO Header|
|XUART6||TTL||pin 18 (TX Only) of the #DIO Header|
|Note:||XUART3 is not used when CAN is enabled|
5 Product Notes
5.1 FCC Advisory
This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly (that is, in strict accordance with the manufacturer's instructions), may cause interference to radio and television reception. It has been type tested and found to comply with the limits for a Class A digital device in accordance with the specifications in Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the owner will be required to correct the interference at his own expense.
If this equipment does cause interference, which can be determined by turning the unit on and off, the user is encouraged to try the following measures to correct the interference:
Reorient the receiving antenna. Relocate the unit with respect to the receiver. Plug the unit into a different outlet so that the unit and receiver are on different branch circuits. Ensure that mounting screws and connector attachment screws are tightly secured. Ensure that good quality, shielded, and grounded cables are used for all data communications. If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The following booklets prepared by the Federal Communications Commission (FCC) may also prove helpful:
How to Identify and Resolve Radio-TV Interference Problems (Stock No. 004-000-000345-4) Interface Handbook (Stock No. 004-000-004505-7) These booklets may be purchased from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.
5.2 Limited Warranty
Technologic Systems warrants this product to be free of defects in material and workmanship for a period of one year from date of purchase. During this warranty period Technologic Systems will repair or replace the defective unit in accordance with the following process:
A copy of the original invoice must be included when returning the defective unit to Technologic Systems, Inc. This limited warranty does not cover damages resulting from lightning or other power surges, misuse, abuse, abnormal conditions of operation, or attempts to alter or modify the function of the product.
This warranty is limited to the repair or replacement of the defective unit. In no event shall Technologic Systems be liable or responsible for any loss or damages, including but not limited to any lost profits, incidental or consequential damages, loss of business, or anticipatory profits arising from the use or inability to use this product.
Repairs made after the expiration of the warranty period are subject to a repair charge and the cost of return shipping. Please, contact Technologic Systems to arrange for any repair service and to obtain repair charge information.