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= CHESS mission =
=PIC18LF26K83=
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==Configuration==
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Clock is set to the highest value (64MHz) as the board is made for test purposes. It could be lowered if a such speed is not needed for the final use. Typically in order to reduce power consumption
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===CAN===
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As described in the ADCS control document, the CAN configuration is the following :
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version 2.0 B, extended ID, SP set to 87.5% and SJW = 1, bus speed 125 kbps.
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{|class=wikitable
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The [https://www.epflspacecraftteam.com/chess-1 CHESS mission] wants to
|-
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fly 2 [https://en.wikipedia.org/wiki/CubeSat Cubesats]
! Register || Hex  || Parameter || Description
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with primary mission to measure the earth’s atmosphere with the help of a mass spectrometer.
|-
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|rowspan="2"| BRGCON1
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|rowspan="2"| 0x0F
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| BRP || (2x16)/FOSC
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|-
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| SJW || 1 x TQ
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|-
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|rowspan="4"| BRGCON2
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|rowspan="4"| 0xBC
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| PRSEG || 5 x TQ
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|-
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| SAM || once at sample point
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|-
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| SEG1PH || 8 x TQ
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|-
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| SEG2PHTS || Freely programmable
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|-
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|rowspan="3"| BRGCON3
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|rowspan="3"| 0x01
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| SEG2PH || 2 x TQ
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|-
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| WAKDIS || Enable CAN wake-up
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|-
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| WAKFIL || CAN line filter not used
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|-
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|}
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===UART===
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= On-Board Computer (OBC) =
  
===SPI===
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The On-Board Computer (OBC) transfers information between the subsystems,
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mainly from the radio to mission payload and back.
  
===ADC===
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In the [https://www.epflspacecraftteam.com/chess-1 CHESS mission],
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it communicates:
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* with the EPS through [[OBC/CAN|OBC/CAN]]
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* with the ADCS through a serial link
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* with the radios through a SPI link
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* with the mass spectrometer through a SPI link
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* with the GPS board through a SPI link
  
== Getting started ==
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The data processing is distributed between a microprocessor and a FPGA logic.
Consult the [//meta.wikimedia.org/wiki/Help:Contents User's Guide] for information on using the wiki software.
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Additionally, a [[OBC/PIC PIC microcontroller]] bridges the FPGA to the [[OBC/CAN|OBC/CAN bus]].
* [//www.mediawiki.org/wiki/Manual:Configuration_settings Configuration settings list]
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* [//www.mediawiki.org/wiki/Manual:FAQ MediaWiki FAQ]
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= Attitude Determination and Control System (ADCS) =
* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
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Latest revision as of 11:01, 18 September 2020

CHESS mission

The CHESS mission wants to fly 2 Cubesats with primary mission to measure the earth’s atmosphere with the help of a mass spectrometer.

On-Board Computer (OBC)

The On-Board Computer (OBC) transfers information between the subsystems, mainly from the radio to mission payload and back.

In the CHESS mission, it communicates:

  • with the EPS through OBC/CAN
  • with the ADCS through a serial link
  • with the radios through a SPI link
  • with the mass spectrometer through a SPI link
  • with the GPS board through a SPI link

The data processing is distributed between a microprocessor and a FPGA logic. Additionally, a OBC/PIC PIC microcontroller bridges the FPGA to the OBC/CAN bus.

Attitude Determination and Control System (ADCS)

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