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ice:enclosure [2014/06/30 20:55] – [I/O] jtshugrueice:enclosure [2021/08/26 15:26] (current) – external edit 127.0.0.1
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 ===== I/O ===== ===== I/O =====
 === Power Entry Connector === === Power Entry Connector ===
-<WRAP left round box > + 
-{{ :ice:conec_3007w2spm99a10x.png |}} +<imgcaption powerConnector| ICE enclosure power connector>{{ :ice:conec_3007w2spm99a10x.png |}}</imgcaption> 
-</WRAP+ 
-<WRAP round left box 230px+<WRAP center 100%
-|  **Pin**   **Signal**  |+<tabcaption powerPinDefPower entry connector pin definition> 
 + **Pin**   **Signal**  ^
 |  1  |  No Connect  | |  1  |  No Connect  |
 |  2  |  No Connect  | |  2  |  No Connect  |
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 |  A1  |  5V_A  | |  A1  |  5V_A  |
 |  A2  |  GND_A  | |  A2  |  GND_A  |
-</WRAP><WRAP clear></WRAP> +</tabcaption> 
-Power is provided with a mixed-signal D-Sub connector (Conec P/N: 3007W2PCM99A30X). Pin definition shown in figure above. The return current path for +5V_A is GND_A. This wiring connected to this return path should be capable of carrying the maximum current of the +5V_A line. The signals GND and GND_A are shorted together on the circuit board through a jumper, but this can be removed.+</WRAP> 
 + 
 + 
 +Power is provided with a mixed-signal D-Sub connector ([[http://www.mouser.com/ProductDetail/CONEC/3007W2PCM99A30X/?qs=%2fha2pyFaduhkEoQ%252bOJK2seiwtqmu9Mu950NmOA%2fNXy1Mn5wO6DCIiQ%3d%3d|Conec P/N: 3007W2PCM99A30X]]). Pin definition shown in <imgref powerConnector> and <tabref powerPinDef> above. The return current path for +5V_A is GND_A. This wiring connected to this return path should be capable of carrying the maximum current of the +5V_A line. The signals GND and GND_A are shorted together on the circuit board through a jumper, but this can be removed.
  
 === USB === === USB ===
  
-USB communication to the ICE Platform is done via a type-B USB connector on the back panel. The ICE Platform emulates a serial port over USB and all communications with the device should be done with Serial communication settings of '8N1' (8 bit, no parity, 1 stop bit) at 115,200 baud. The comm (or serial) port to use will be chosen by the USB host computer. See [[ice:commands:overview|commands overview]] page for usage of the serial port. The ICE Platform uses an FTDI chip to emulate a serial port over USB. Drivers can be found at http://www.ftdichip.com/Drivers/VCP.htm. The USB port is electrically isolated from the ICE Platorm, thereby preventing any ground loops between the ICE enclosure and a computer.+USB communication to the ICE Platform is done via a type-B USB connector on the back panel. The ICE Platform emulates a serial port over USB and all communications with the device should be done with Serial communication settings of '8N1' (8 bit, no parity, 1 stop bit) at 115,200 baud. The comm (or serial) port to use will be chosen by the USB host computer. See [[ice:commands:overview|commands overview]] page for usage of the serial port. The ICE Platform uses an FTDI 232R chip to emulate a serial port over USB. Drivers can be found at http://www.ftdichip.com/Drivers/VCP.htm. The USB port is electrically isolated from the ICE Platorm, thereby preventing any ground loops between the ICE enclosure and a computer.
  
 === D-Sub 9 Pin Connector === === D-Sub 9 Pin Connector ===
-<WRAP left round box 250px> + 
-{{ :ice:dusb-female.png?200 |}} +<imgcaption dsub9|D-Sub 9 pin connector.>{{ :ice:dusb-female.png?200 |}}</imgcaption> 
-</WRAP+ 
-<WRAP round left box 230px+<WRAP center 100%
-|  **Pin**   **Signal**  | +<tabcaption db9pindefD-Sub 9 pin connector pin definitions.> 
-|  1  |  GPIO1  | + **Pin**   **Signal**  ^ 
-|  2  |  RXI_Serial  | +|  1  |  EVENT_ADDR0  | 
-|  3  |  TXO_Serial  |+|  2  |  TX_Serial  | 
 +|  3  |  RX_Serial  |
 |  4  |  5V In((leave unconnected if USB is also connected))  | |  4  |  5V In((leave unconnected if USB is also connected))  |
 |  5  |  Ground  | |  5  |  Ground  |
-|  6  |  GPIO2  |+|  6  |  EVENT_ADDR1  |
 |  7  |  No Connect  | |  7  |  No Connect  |
-|  8  |  GPIO3  | +|  8  |  EVENT_ADDR2  | 
-|  9  |  GPIO4  | +|  9  |  EVENT_Trigger  | 
-</WRAP><WRAP clear></WRAP>+</tabcaption> 
 +</WRAP> 
 == TTL Serial == == TTL Serial ==
-This provides a TTL (low-voltage) asynchronous serial interface (USART) to communicate with the ICE Platform. Note that this serial interface is **not** compatible with RS-232 signalling levels, as found on the COM ports of older PC's. The serial interface operates at 3.3V signalling levels, 115,200 Baud, 8N1 format (8 bit, no parity, 1 stop bit), and no flow control. Bus idle state is high (3.3V). The TXO (transmit out) and RXI (receive in) nomenclature is from the perspective of the device external to the Master Controller. TXO is for an external device transmitting data into the ICE Platform. RXI is for the ICE Platform sending data out to an external device. Either the TTL serial interface or USB can be used to receive commands, but **not** simultaneously (e.g. interleaved bytes).+This provides a LVTTL (low-voltage, 3.3V signalling) asynchronous serial interface (USART) to communicate with the ICE Platform. Note that this serial interface is **not** compatible with RS-232 signalling levels, as found on the COM ports of older PC's. The serial interface operates at 3.3V signalling levels, 115200 Baud, 8N1 format (8 bit, no parity, 1 stop bit), and no flow control. Bus idle state is high (3.3V). The TX (transmit out) and RX (receive in) nomenclature is from the perspective of the ICE Box. Either the TTL serial interface or USB can be used to receive commands, but **not** simultaneously (e.g. interleaved bytes).
 <WRAP center round important 60%> <WRAP center round important 60%>
-Either the TTL serial interface or USB can be used to receive commands, but **not** simultaneously (e.g. interleaved bytes).+Either the TTL serial interface or USB can be used to receive commands, but **not** simultaneously (e.g. interleaved bytes). Taking turns sending complete commands and responses is okay.
 </WRAP> </WRAP>
  
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 </WRAP> </WRAP>
  
-== GPIO == +== EVENT == 
-The GPIO pins are used for event system signalling. Voltage signalling is at 3.3V, active low. Pin definitions and usage is detailed in the [[ice:event_system|Event System]] section.+The EVENT pins are used for event system signalling. EVENT_ADDR0 is the least significant bit of the 3-bit event address. EVENT_TRIGGER is used to trigger the event. The state of the EVENT_ADDR pins will be read when on the rising edge of the EVENT_TRIGGER line. Voltage signalling is at 3.3V TTL, active high. Pin definitions and usage is detailed in the [[ice:event_system|Event System]] section.
 === Safety Interlock BNC === === Safety Interlock BNC ===
 The safety interlock signal prevents the Master Controller from releasing the safety interlocks on all attached daughter boards. The safety interlock is only applicable to daughter boards that have laser controllers. Without the safety interlocks released, daughter boards are prevented from powering on lasers. The safety interlock signal floats high to 3.3V and must be pulled down to ground to release the interlocks. It must be pulled to ground with less than 1kΩ of impedance. This pin can be permanently shorted directly to ground if safety interlock functionality is not required. The safety interlock signal prevents the Master Controller from releasing the safety interlocks on all attached daughter boards. The safety interlock is only applicable to daughter boards that have laser controllers. Without the safety interlocks released, daughter boards are prevented from powering on lasers. The safety interlock signal floats high to 3.3V and must be pulled down to ground to release the interlocks. It must be pulled to ground with less than 1kΩ of impedance. This pin can be permanently shorted directly to ground if safety interlock functionality is not required.
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 The safety interlock signal floats high to 3.3V and must be pulled down to ground to release the interlocks. This pin can safely be shorted to ground if safety interlock functionality is not required. The safety interlock signal floats high to 3.3V and must be pulled down to ground to release the interlocks. This pin can safely be shorted to ground if safety interlock functionality is not required.
 </WRAP> </WRAP>
- 
ice/enclosure.1404161751.txt.gz · Last modified: 2021/08/26 14:26 (external edit)