OPMM-1616-XT User Manual - Diamond Systems Corporation
Contents
1. J4 Relays 0 7 J5 Relays 8 15 Relay 0 NO 1 2 Relay 0 C Relay8 NO 1 2 Relay8C Relay 0 NC 3 4 Relay 1 NO Relay8 NC 3 4 Relay 9 NO Relay1C 5 6 Relay 1 NC Relay9C 5 6 Relay 9 NC Relay2NO 7 8 Relay 2 C Relay 10 NO 7 8 Relay 10C Relay 2 NC 9 10 Relay3NO Relay 10NC 9 10 Relay 11 NO Relay3C 11 12 Relay3NC Relay 11C 11 12 Relay 11 NC Relay 4 NO 13 14 Relay4C Relay 12NO 13 14 Relay 12C Relay 4NC 15 16 Relay5NO Relay 12NC 15 16 Relay 13 NO Relay5C 17 18 Relay5NC Relay 13C 17 18 Relay 13 NC Relay 6 NO 19 20 Relay6C Relay 14 NO 19 20 Relay 14 C Relay6 NC 21 22 Relay 7 NO Relay 14NC 21 22 Relay 15 NO Relay 7C 23 24 Relay 7 NC Relay 15C 23 24 Relay 15 NC NC 25 26 NC NC 25 26 NC Connector type 0 1 pitch 34 pin dual row right angle pin header Connector type 0 1 pitch 34 pin dual row right angle pin header Signal Name Definition Relay n NO Normally open contact disconnected when power off or relay de energized connected to Common contact when relay energized Relay nC Common contact Relay n NC Normally closed contact connected to Common contact when power off or relay de energized disconnected when relay energized NC Unused pin OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 8 Q piamonn SYSTEMS 5 THEORY OF OPERATION2. 50VA AC Max Maximum operating voltage 220VDC 250VAC Contact resistance 50mQ max Relay lifetime 10 000 000 operations Actuation time Connecior Types J3 opto inputs Operate 5ms max Release 5ms max 0 1 pitch 34 pin dual row right angle pin header J4 and J5 relay outputs General Operating temperature Power Consumption Weight RoHS Compliant 0 1 pitch 26 pin dual row right angle pin header 40 to 85 C 0 35W all relays de energized Additional 0 14W per energized relay 3W maximum 3 2 oz 90 7 g Yes OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 21
3. DIAMOND SYSTEMS CORPORATION OPMM 1616 XT PC 104 I O Module with Optoisolated inputs and Relay Outputs Rev 1 0 September 2010 zu Secese EEEE Revision Date Comment 1 0 9 26 2010 first release Copyright 2010 FOR TECHNICAL SUPPORT Diamond Systems Corporation PLEASE CONTACT 1255 Terra Bella Ave Mountain View CA 94043 USA support diamondsystems com Tel 1 650 810 2500 Fax 1 650 810 2525 www diamondsystems com 1 2 3 4 5 6 7 8 9 piamono SYSTEMS CONTENTS Important Safe Handling Information c cccceeeeseee sees senneeeeeeeeeeeeesaaeen seen eneeaesaesesaeesnseeeeesesescaeseseeeenseeeseaees 3 Juge TI TEE 4 e DESCHPUOM EE 4 22 E 4 Functional CIVer ewe secre cctetest aaaea aaraa areara Eaa testes cng aa aa ea a kt cence an a aa dae aaa aa aaa Aaaa a aaea aaa 5 3 1 Functional Block Diagoram eeeececeeeeneee ee eene ee eee e ee eee ae ee ee ea aaraa EEEE ANANA AARAU EEUNA EAEAN E EE AARRE ERREA 5 3 2 OPMM 1616 XT Board Drawing utuutu utuutu ustu nntEuSE nsun Enn Eunnnn Ennens enaena 6 Connector Pinout and Pin Description s sssssssssesunennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnnnnnannnnnnnnnnnnnnnnnnn anneanne 7 GN PG VO4 EE H Me e EE 7 AC He rd TEE 8 Theory of Operatii est 9 51 MMp t Circuits esieesusiiideirinessraiiednue naaie aranean aeiaai aandaa idea a daeadenn akaa 9 52 Relay Outputs EE 9 5 39 PC 104 Bus Interface ou eee cec
4. system is powered off Sometimes boards are stored in racks with slots that grip the edge of the board This is a common practice for board manufacturers However our boards are generally very dense and if the board has components very close to the board edge they can be damaged or even knocked off the board when the board tilts back in the rack Diamond recommends that all our boards be stored only in individual ESD safe packaging If multiple boards are stored together they should be contained in bins with dividers between boards Do not pile boards on top of each other or cram too many boards into a small location This can cause damage to connector pins or fragile components Power supply wired backwards Our power supplies and boards are not designed to withstand a reverse power supply connection This will destroy each IC that is connected to the power supply i e almost all ICs In this case the board will most likely will be unrepairable and must be replaced A chip destroyed by reverse power or by excessive power will often have a visible hole on the top or show some deformation on the top surface due to vaporization inside the package Check twice before applying power Overvoltage on digital I O line If a digital I O signal is connected to a voltage above the maximum specified voltage the digital circuitry can be damaged On most of our boards the acceptable range of voltages connected to digital I O signals is 0 5V and they can
5. 0 3 R3 RO 15 8 3 2 Controlling Multiple Relays Another way to control the relays is using the relay control register at Base 0 and Base 1 By writing the entire register all the relays corresponding to the bits in the register would turn ON or OFF depending on the register bit written with a value of a 1 ora 0 BYTE value OxFF to turn ON all the relays from 0 7 utp base 0 value o to turn ON all the relays from 8 15 outp base 1 value To turn relays 0 2 4 and 6 ON while relays 1 3 5 and 7 to OFF outp base 0 0x55 01010101 to turn relays 9 10 13 and 15 ON while relays 8 10 12 and 14 to OFF outp base 1 0xAA 10101010 When the registers Base 0 and Base 1 are read the return value that was read signifies the status of the individual relays Note By writing the entire bank of relays you need to take special care if you wish to control an individual relay and not change the state of the other relays in the bank In this case before the register is written it should be read and the contents of the register should be modified to reflect the relay that needs to be changed For example if all the relays in the bank 1 pointed to by the register at Base O were previously turned ON and you wish to turn relay 7 bit 6 in the register base 0 to OFF then follow these steps BYTE data data inp base 0 data amp 0xBF And with 101
6. 4 bits of the register R3 0 control data relay number relay number 0 to 15 Set either Set or Reset bit to turn relay ON or OFF respectively in the upper nibble of the same byte to which the relay number was written as shown above control data amp 0x0F zero out the upper nibble and preserve the relay number in lower nibble control data 0x80 set BIT 7 SET 1 alternatively control_ data 0x40 alternatively set BIT 6 RESET 1 outp base 2 control data update the register with either SET or RESET command For example to turn relay 0 ON utp base 2 0x80 bit 7 SET 1 R3 R0 ll fo o to turn relay 6 ON O ct IO ES Di se 2 0x86 bit 7 SET 1 relay selection bits 0 3 R3 RO 6 to turn relay 15 ON outp base 2 Ox8F bit 7 SET 1 relay selection bits 0 3 R3 R0 15 OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 18 piamono SYSTEMS Similarly to turn an individual relay OFF to turn relay 0 OFF utp base 2 0x40 bit 6 RESET 1 R3 RO 0 o to turn relay 6 OFF O ct IO ES Di se 2 0x46 bit 6 RESET 1 relay selection bits 0 3 R3 RO 6 to turn relay 15 OFF outp base 2 Ox4F bit 6 RESET 1 relay selection bits
7. ESD damage This type of damage is usually almost impossible to detect because there is no visual sign of failure or damage The symptom is that the board eventually simply stops working because some component becomes defective Usually the failure can be identified and the chip can be replaced To prevent ESD damage always follow proper ESD prevention practices when handling computer boards Damage during handling or storage On some boards we have noticed physical damage from mishandling A common observation is that a screwdriver slipped while installing the board causing a gouge in the PCB surface and cutting signal traces or damaging components Another common observation is damaged board corners indicating the board was dropped This may or may not cause damage to the circuitry depending on what is near the corner Most of our boards are designed with at least 25 mils clearance between the board edge and any component pad and ground power planes are at least 20 mils from the edge to avoid possible shorting from this type of damage However these design rules are not sufficient to prevent damage in all situations A third cause of failure is when a metal screwdriver tip slips or a screw drops onto the board while it is powered on causing a short between a power pin and a signal pin on a component This can cause overvoltage power supply problems described below To avoid this type of failure only perform assembly operations when the
8. of J2 which turns ON upon power up The LED can be controlled via software using a register write command as explained in the software section of this manual OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 10 Q piamonn SYSTEMS 6 BOARD CONFIGURATION The board address and interrupt values are set using jumpers on J6 6 1 Base Address and IRQ Jumper Settings Address Pin positions on J6 in the address area labeled 9 through 4 are used together to select a base address for the board The six pin positions are identified in the table below A jumper plug in applies a 0 to that address bit out is a 1 The base address is always 12 bits long The lower four address bits are always 0 which means that the OPMM 1616 XT board can only be configured on 16 byte boundaries Also the upper 2 bits address bit 10 and bit 11 are also always zero which means that the maximum value in the MSB can only be 0011 or 3 The valid address range is from 0x0100 to 0x3F0 A board shipped from the factory is at default address of 300H You may need to verify that this setting is compatible with your system NOTE The table information only suggests some possible addresses Others are possible as long as the address is 100 hex or higher and the address range does not conflict with any other resource on the ISA bus Header label for address pins Hex Decimal 9 8 7 6 5 4 100 256 in out in in in in 140 320 in
9. out in out in in 180 384 in out out in in in 1C0 448 in out out out in in 200 512 out in in in in in 240 576 out in in out in in 280 640 out in out in in in 300 default 768 out out in in in in 3F0 1016 out out out in in in IRQ Pin positions in the IRQ section of J6 and which are labeled 15 to 3 are for setting the IRQ value R is for selection of a 1kQ pull down resistor on the IRQ line To select an IRQ place a jumper block at the position next to the number of the desired IRQ on the board next to J6 To enable a pull down resistor on the IRQ line if no other device on the bus has one enabled place a jumper on the R position of J6 When using an IRQ one and only one board in the system must have a pull down resistor on the line Examples of IRQ settings on J6 To enable IRQ5 place a jumper at position 5 Alternatively to enable IRQ14 place a jumper at position 14 To disable use of a pull down resistor for this board s IRQ position R should be unoccupied OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 11 piamono SYSTEMS 7 VO REGISTERS 7 1 UO Map Summary The board is controlled and monitored via eight 8 bit registers as defined below Write Offset from base 7 6 5 4 3 2 1 0 address 0 RLY7 RLY6 RLY5 RLY4 RLY3 RLY2 RLY1 RLYO 1 RLY15 RLY14 RLY1
10. the change detect circuit for inputs 7 0 1 input has changed 0 input has not changed If INTEO 1 any change on inputs 7 0 will generate an IRQ The change is indicated with a 1 in the corresponding bit CHG7 0 INTRST 1 is a command bit that resets all CHG bits and the interrupt circuit but keeps the circuit enabled and ready if INTEO 1 7 2 11 Base address 5 0x05 Write LED Control Register Bit No Name Reset value LED Drives an on board status LED 1 LED On default on power up 0 LED Off 7 2 12 Base address 5 0x05 Read Change Detect 15 8 Status Register CHGn Reads back the status of the change detect circuit for inputs 15 8 1 input has changed 0 input has not changed If INTE1 0 any change on inputs 15 8 will generate an IRQ The change is indicated with a 1 in the corresponding bit CHG15 8 INTRST 1 is a command bit that resets all CHG bits and the interrupt circuit but keeps the circuit enabled and ready if INTE1 1 OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 16 Q piamonn SYSTEMS 8 PROGRAMMING The OPMM 1616 XT functionality is simple to program using either the Universal Driver version 7 00 or by programming the board registers using simple register read writes This section describes how to program the outputs and read the inputs in the C language 8 1 General Information All access to the board is done with I O commands meaning data is read and written to the comp
11. the changed values as per the need of the application 3 Before exiting the interrupt service routine reset the interrupt flip flop bit by writing 1 to the INTRST bit in register base 4 outp base 4 0x08 8 5 Other Software Commands The board has other control bits which can be controlled using simple register write commands e Reset the board The board can be reset by writing 1 to the BRDRST bit in register base 4 outp base 3 0x80 write 1 to bit 7 BRDRST e Control the LED The LED can be controlled by writing either a 1 or a 0 to the LED bit in register base 5 outp base 5 0x01 turn the LED ON outp base 5 0x00 turn the LED OFF OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 20 9 SPECIFICATIONS Host Interface Interface type Inputs Opto isolated Number of inputs Input capacity Input impedance Logic Levels Programmability Outputs Relays Number of relays piamono SYSTEMS PC 104 ISA bus 8 bit bus 16 unidirectional optoisolated inputs 30VDC with current limiting resistors 8kQ Logic 0 0 1 5VDC Logic 1 3 30VDC Programmable edge detection with interrupts 16 Relay Type SPDT Form C Break before make Voltage Current 5V DC 600mA max all relays optos ON Switched DC capacity 30VDC 2A Switched AC capacity 125VAC 0 1A resistive 125VAC 0 2A inductive Maximum switching capacity 30W DC
12. withstand about 0 5V beyond that 0 5 to 5 5V before being damaged However logic signals at 12V and even 24V are common and if one of these is connected to a 5V logic chip the chip will be damaged and the damage could even extend past that chip to others in the circuit OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 3 2 INTRODUCTION 2 1 OPMM 1616 XT is a PC 104 I O module with 16 optoisolated inputs and 16 relay outputs Description 2 2 Features Optoisolated Inputs 16 unidirectional optoisolated inputs with current limiting resistors 30VDC input capacity 0 1 5V input logic 0 3 30VDC input logic 1 Programmable edge detection with interrupts Relay Outputs 16 relay outputs Form C contacts SPDT 2A current capacity 30VDC 30W switching capacity Bus Interface PC 104 8 bit ISA bus interface both 8 bit and 16 bit connectors installed 8 byte I O footprint IRQ support Environmental Mechanical PC 104 format board 40 C to 85 C operating temperature 5VDC input voltage Q D SYSTEMS OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 4 piamond SYSTEMS 3 FUNCTIONAL OVERVIEW 3 1 Functional Block Diagram OPMM 1616 XT BLOCK DIAGRAM FLASH BASED CPLD 16 OPTOINPUTS ADDRESS DATA 16 SPDT RELAYS OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 5 piamond SYSTEM
13. 11111 BIT 6 Relay 6 turned OFF Similarly to turn the same relay ON without modifying the contents of the other relays data inp base 0 data 0x40 Or with 01000000 BIT 6 Relay 6 turned ON OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 19 Q piamonn SYSTEMS 8 4 Interrupts The OPMM 1616 XT board can generate interrupts when the opto inputs change state The ISR needs to reset the interrupt flip flop after receiving an interrupt before returning The interrupt will be raised on the IRQ line configured on the board using a jumper on J6 The interrupts need to be enabled using the interrupt control bits INTE1 and INTEO in register base 4 By default the interrupts are disabled which means that the board will not generate an interrupt on change of state of opto inputs The bits INTE1 provides the interrupt on change enable for opto inputs 8 15 while INTEO provides the interrupt on change enable for opto inputs 0 7 To use interrupts 1 Enable interrupts outp base 4 0x03 enable interrupts on all the opto inputs 2 Write an interrupt service routine to service the interrupts a Inside the interrupt service routine the recommended logic is to read the interrupt on change registers at base 4 and base 5 Valuel inp base 4 read interrupt on change register for opto inputs 0 7 Value2 inp base 5 read interrupt on change register for opto inputs 8 15 b Take action on
14. 3 RLY12 RLY11 RLY10 RLY9 RLY8 2 SET RESET R3 R2 R1 RO 3 BRDRST INTRST 4 INTE1 INTEO 5 LED 6 7 Read Offset 7 6 5 4 3 2 1 0 0 RLY7 RLY6 RLY5 RLY4 RLY3 RLY2 RLY1 RLYO 1 RLY15 RLY14 RLY13 RLY12 RLY11 RLY10 RLY9 RLY8 2 OPTO7 OPTO6 OPTO5 OPTO4 OPTO3 OPTO2 OPTO1 OPTOO 3 OPTO15 OPTO14 OPTO13 OPTO12 OPTO11 OPTO10 OPTO9 OPTO8 4 CHG7 CHG6 CHG5 CHG4 CHG3 CHG2 CHG1 CHGO 5 CHG15 CHG14 CHG13 CHG12 CHG11 CHG10 CHG9 CHG8 6 7 RLY15 0 Register bits Controls the states of the 16 relays the associated I O pins match the value written to the registers These register values may be read back SET Command bit Sets relay defined by R3 0 to 1 RESET Command bit Sets relay defined by R3 0 to 0 R3 0 Data bits Indicates the relay to set or reset with the SET and RESET commands BRDRST Command bit Resets all registers to 0 INTRST Command bit Resets the interrupt request circuit but does not disable interrupts INTE1 0 Register bits Enables interrupt on change of state for relays 15 8 and 7 0 respectively LED Register bit Drives an on board status LED OPTO15 0 Reads back the states of the 16 opto input pins CHG15 0 Reads back the current state of the input change detect circuit flip flops OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 12 piamono SYSTEMS 7 2 I O Register Details This section describes the location and general behavior of specific bits in each I O map register In all register definitions be
15. S 3 2 OPMM 1616 XT Board Drawing 3 258 1 028 8 358 wg 3 775 Z SAND St 8 GAN Du 2 625 J1 PC 104 8 BIT CONNECTOR j PC 104 16 BIT CONNECTOR J1 Main PC 104 header J2 16 bit extension J3 Optoisolated inputs J4 Relays 0 to 7 J5 Relays 8 to 15 J6 Address and IRQ jumpers OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 6 4 CONNECTOR PINOUT AND PIN DESCRIPTION A1 PC 104 J1 J2 Connectors J1 PC 104 and J2 16 bit extension provide connection to the motherboard 4 2 Input J3 Connector J3 handles optoisolated inputs In 0 In 1 In 2 In 3 In 4 In 5 In 6 In 7 In 8 In 9 In 10 In 11 In 12 In 13 In 14 In 15 NC Input 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 In 0 In 1 In 2 In 3 In 4 In 5 In 6 In 7 In 8 In 9 In 10 In 11 In 12 In 13 In 14 In 15 NC Connector type 0 1 pitch 34 pin dual row right angle pin header Q piamonn SYSTEMS Signal Name Definition In n High side of optoisolated input In n Low side of optoisolated input NC Unused pin OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 7 Q piamonn SYSTEMS 4 3 Output J4 J5 Connectors J4 at the right edge of the board and J5 at the left edge handle outputs
16. This chapter provides an orientation to the functional architecture of blocks on the board Additional details are in the register programming section and specific chapters on various blocks 5 1 Input Circuits The board features 16 optoisolated digital inputs The inputs are unidirectional and accept DC voltages up to 30VDC An input voltage in the range of 0 1 5V will result in a logic low indication and an input voltage in the range of 3 30V will result in a logic high indication Inputs feature channel to channel and input to output isolation of 500V DC or AC The components layout and trace spacing are designed to support this isolation rating The inputs also feature a programmable edge detection circuit change of state detection circuit that can generate interrupts on any change on any input The optoisolated inputs are accessed via a 34 pin 1 pitch right angle pin header along the top edge of the board The input circuit has the following design R2 680 R1 8 06K VIN VOUT Vin High range 3 3 VDC PS2802 4A Vin Low range 1 5VDC R3 1 3K 5 2 Relay Outputs The board features 16 DPDT form C relays with 30VDC 2A 60W resistive capacity Each relay has a lifetime of 10 000 000 operations When the board is powered off or the relay is de energized the C contact is connected to the NC contact and when the relay is energized the C contact is connected to the NO contact The relay type i
17. are in LOW state while inputs 6 4 2 and 0 are in high state OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 17 piamono SYSTEMS 8 3 Turning Relays On and Off Relay control is handled by the registers as shown in the following table Write Offset from base 7 6 5 4 3 2 1 0 address 0 RLY7 RLY6 RLY5 RLY4 RLY3 RLY2 RLY1 RLYO 1 RLY15 RLY14 RLY13 RLY12 RLY11 RLY10 RLY9 RLY8 2 SET RESET R3 R2 R1 RO RLY15 0 Register bits Controls the states of the 16 relays the associated I O pins match the value written to the registers When read the register bits represent the state of the relay 1 ON 0 OFF SET Command bit Sets relay defined by R3 0 to 1 RESET Command bit Sets relay defined by R3 0 to 0 To turn a relay on write a 1 to its corresponding bit in the output register To turn the relay off write a 0 to the corresponding bit Note the following characteristics e Relays are in the Off state when power is off to the computer Upon power up all relays remain in the off state e Upon system reset all relays will return to the off state The relays can be controlled in two ways either individually or by selecting a bank of 8 relays for simultaneous updates 8 3 1 Controlling Individual Relays To control an individual relay the register at Base 2 should be written to The steps to control the relay are Select the relay to control by writing the relay number to the lower
18. e 1 at the same time no change occurs R3 0 Data bits Indicates the relay to set or reset with the SET and RESET commands BIT 3210 0000 Relay 0 0001 Relay 1 1111 Relay 15 7 2 6 Base address 2 0x02 Read Opto input 7 0 Status Register OPTOn Status of Opto input n for inputs 7 to 0 1 input is high 0 input is low OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 14 piamono SYSTEMS 7 2 7 Base address 3 0x03 Write Board Reset Control Register BRDRST Command bit Reset all registers to 0 1 reset all registers to 0 0 no action INTRST Command bit Resets the interrupt request circuit but does not disable interrupts 1 reset interrupt request and allow another interrupt 0 no action 7 2 8 Base address 3 0x03 Read Opto input 15 8 Status Register OPTOn Status of Opto input n for inputs 15 to 8 1 input is high 0 input is low 7 2 9 Base address 4 0x04 Write Interrupt Control Register INTE Enables interrupt on change of state for opto inputs 15 8 1 enable interrupt on change of state 0 no action INTEO Enables interrupt on change of state for opto inputs 7 0 1 enable interrupt on change of state 0 no action OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 15 piamono SYSTEMS 7 2 10 Base address 4 0x04 Read Change Detect 7 0 Status Register Po fo fof ofofeotfotlo Reset value CHGn Reads back the status of
19. e ccceceeee cece eeeeaeeeeeaeesaeeeceaeeeeaaesaeaeeseaeeecaaeseeaaesdeneesaaeeseaaesgeaeesseeeseaeeseaeeseneeenaees 9 e HE le 10 e ie El Fale et te 10 Board Conti Quration E 11 6 1 Base Address and IRQ Jumper SettingS cccccccccecenececeeeeeeeeeceeeeeceaeeeeaaeseeeeeseaeeesaaeedeeeeseeeeescaeeetaeeeeneeees 11 HR GO eher 12 71 REI BET lu Lu EE 12 72 E ERT 13 7 2 1 Base address 0 0x00 Write Relay 7 0 Control Register ss esseesseesseessneesrnssrnssnnsrnssrnesrnssrnsns 13 7 2 2 Base address 0 0x00 Read Relay 7 0 Status Hegleter 13 7 2 3 Base address 1 0x01 Write Relay 15 8 Control Register ccecccecseeeeeseeeeeeeeseeeeeseaeeteneeeeaes 13 7 2 4 Base address 1 0x01 Read Relay 15 to 8 Status Hegieter 14 7 2 5 Base address 2 0x02 Write Relay Select Register cccccecsceceeeeeceeeeeeeeeeeeeeeseeeessaeeeeeeeeaes 14 7 2 6 Base address 2 0x02 Read Optoinput 7 0 Status Register ccccccccceseeceeeeeseeeeeeseeseneeeeaes 14 7 2 7 Base address 3 0x03 Write Board Reset Control Hegieter 15 7 2 8 Base address 3 0x03 Read Optoinput 15 8 Status Register cccccceseeeeceeeeeeeeeeeeeeeeeeeaes 15 7 2 9 Base address 4 0x04 Write Interrupt Control Register 0 cccccceeccecceeceeeeeeeeeeeeeeeeseaeeneaeeeeaes 15 7 2 10 Base address 4 0x04 Read Change Detect 7 0 Status Hegisier 16 7 2 11 Base address 5 0x05 Write LED Control Register c ccccceeeseeceeeeeceeeee
20. eeeeeeeeeeeeeeeseaeeseaeeeeaes 16 7 2 12 Base address 5 0x05 Read Change Detect 15 8 Status Hegisier 16 Programmiga E 17 8 1 General Iofotmstont 7 gerveeeeerdeEEEEeedEE EEEEEEdEEE EE EEEEEEE E e Eege aadi aN aSa eaaa 17 8 2 Reading an Opto Bt 17 8 3 Turning Relays On and EE 18 8 3 1 Controlling Individual Relays EE 18 8 93 27 Controlling Multiple Relays c c secie aasita sisectessacedtesvesectiescactiec seed Eed aa aaa a aAa aat 19 ek MALS NUTS ana E EAE RA A a AS 20 8 5 Other Sottware Commands EE 20 Ee e EE 21 OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 2 piamono SYSTEMS 1 IMPORTANT SAFE HANDLING INFORMATION WARNING ESD Sensitive Electronic Equipment Observe ESD safe handling procedures when working with this product Always use this product in a properly grounded work area and wear appropriate ESD preventive clothing and or accessories Always store this product in ESD protective packaging when not in use Safe Handling Precautions This board contains a high density connector with many connections to sensitive electronic components This creates many opportunities for accidental damage during handling installation and connection to other equipment The list here describes common causes of failure found on boards returned to Diamond Systems for repair This information is provided as a source of advice to help you prevent damaging your Diamond or any vendor s embedded computer boards
21. low any bit named X is not defined and serves no function 7 2 1 Base address 0 0x00 Write Relay 7 0 Control Register RLYO 7 Register bits controlling the states of the relays 7 to 0 These register values may be read back 1 Contacts C and NC are closed 0 Contacts C and NO are closed 7 2 2 Base address 0 0x00 Read Relay 7 0 Status Register RLYO 7 Register bits showing the status of the relay control bits for 7 to 0 1 Contacts C and NC are closed 0 Contacts C and NO are closed 7 2 3 Base address 1 0x01 Write Relay 15 8 Control Register RLY8 15 Register bits controlling the states of the relays 15 to 8 These register values may be read back 1 Contacts C and NC are closed 0 Contacts C and NO are closed OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 13 Q piamonn SYSTEMS 7 2 4 Base address 1 0x01 Read Relay 15 to 8 Status Register RLY8 15 Register bits showing the status of the relay control bits for 15 to 8 These register values may be read back 1 Contacts C and NC are closed 0 Contacts C and NO are closed 7 2 5 Base address 2 0x02 Write Relay Select Register Bit No Name Reset value SET Command bit Sets relay defined by R3 0 to 1 1 Set relay connect C contact to NO contact 0 No action RESET Command bit Clear relay defined by R3 0 to 0 1 Clear relay connect C contact to NC contact 0 No action If both SET and RESET ar
22. s NAIS TX2 5 or equivalent All relays power up in their de energized position C contact connected to NC contact The relays are accessed via two 26 pin 1 pitch right angle pin headers along the left and right edges of the board 5 3 PC 104 Bus Interface The board interfaces to the PC 104 ISA bus using an 8 bit I O interface controlled by a CPLD The board occupies 8 bytes in I O space Its base address is selected with 6 jumpers that select 1 or 0 for address bits A9 4 System address bits A15 10 are 0 for the board For enhanced ruggedness all jumper options may be configured with 0 ohm resistors on the bottom side of the board in place of mechanical jumpers These jumpers are oriented in the same position as the jumpers on the top side and their positions are labeled for easy identification For examples see Section 6 1 OPMM 1616 XT User Manual Rev 1 0 www diamondsystems com Page 9 Q piamonn SYSTEMS 5 4 Interrupts The design includes an interrupt circuit for generating ISA bus IRQs The IRQ options are 3 4 5 6 7 10 and 11 An additional jumper enables selection of the 1K ohm pull down resistor required for PC 104 IRQ sharing IRQ10 and IRQ11 are on the 16 bit connector while the remaining IRQs are on the 8 bit connector Thus a board without the 16 bit connector installed does not have access to IRQ10 and IRQ11 For example see Section 6 1 5 5 LED Indicator The board has one LED indicator located to the right
23. uter s I O memory as opposed to data memory or the keyboard or display To access the board in C use the following code Input a inp addr Output outp addr a In the example a is the data and addr is the I O address of the board as specified above in Board Configuration 8 2 Reading an Opto Input The registers used to read an opto input are as shown in the table below Read Offset from base 7 6 5 4 3 2 1 0 address Base 2 OPTO7 OPTO6 OPTO5 OPTO4 OPTO3 OPTO2 OPTO1 OPTOO Base 3 OPTO15 OPTO14 OPTO13 OPTO12 OPTO11 OPTO10 OPTO9 OPTO8 OPTO15 0 Reads back the states of the 16 opto input pins The status of the opto inputs can be determined by reading the registers corresponding to the opto inputs The status of opto inputs 0 7 can be obtained by reading the register Base 2 and the state of opto inputs 8 15 can be obtained by reading the register Base 3 BYTE value 1 BYTE value 2 to read the status of opto inputs 0 7 value 1 inp base 2 to read the status of opto inputs 8 15 value 2 inp base 3 Each bit in the return value represents the state of the corresponding bit on the opto inputs A 1 in the bit position means that the corresponding opto input is high and a 0 means that the input is low For example if the variable value1 in the above code example returns a value of 0x55 01010101 that means the opto inputs 7 5 3 and 1
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