ice:enclosure
Differences
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ice:enclosure [2014/07/03 00:19] – [I/O] jtshugrue | ice:enclosure [2021/08/26 15:26] (current) – external edit 127.0.0.1 | ||
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- | Power is provided with a mixed-signal D-Sub connector (Conec P/N: 3007W2PCM99A30X). Pin definition shown in <imgref powerConnector> | + | Power is provided with a mixed-signal D-Sub connector ([[http:// |
=== 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 ' | + | 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 ' |
=== D-Sub 9 Pin Connector === | === D-Sub 9 Pin Connector === | ||
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< | < | ||
^ **Pin** | ^ **Pin** | ||
- | | 1 | | + | | 1 | |
- | | 2 | | + | | 2 | |
- | | 3 | | + | | 3 | |
| 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 | | + | | 6 | |
| 7 | No Connect | | 7 | No Connect | ||
- | | 8 | | + | | 8 | |
- | | 9 | | + | | 9 | |
</ | </ | ||
</ | </ | ||
== 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, | + | 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, |
<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. |
</ | </ | ||
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</ | </ | ||
- | == GPIO == | + | == EVENT == |
- | The GPIO pins are used for event system signalling. Voltage signalling is at 3.3V, active | + | 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 |
=== 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. | ||
</ | </ | ||
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ice/enclosure.1404346769.txt.gz · Last modified: 2021/08/26 14:26 (external edit)