Wow, it's been a long time that I have place a new posting into this blog. The last few months have been very busy and I have spend most of my time working on the MD-83 project with the National Museum of Commercial Aviation here in Atlanta. I also spent a week at the IEEE 31st DASC conference in Williamsburg, VA. So, I will use the start of the new month to get back into my regular blogging routine. The remainder of the year will bring a lot of avionics bending!
Over the last few days I have been working on power-up tests of the SFENA HSI that I have had in storage for quite some time. The instrument is completely ARINC 429 based and you might have seen some postings of the SFENA ADI that Javier Pérez-Mato has been able to power up and use for his paper on an Experimental Optical Wireless bus system.
The focus for the next few days and/or weeks will be the SFENA HSI and controlling all its functions via ARINC 429 driven out of XPlane. First, I have to make sure that the device actually powers up and that the majority of the mechanics are in good shape. The instrument takes 115V 400Hz input power at about 0.25A.
What you see in the clip above it he SFENA device first powering up from the power source and then receiving a number or ARINC 429 words. The test labels sent to the HSI are:
VOR Test (watch the VOR flag in the upper left hand side)
Course Test (rotating, with NAV flag visible in upper left hand side)
The ARINC 429 messages are sent by a DDC-42924i5 card and the program driving it is written in C. As this gets more sophisticated I will post the C code or post a reference to it on GitHUB.
Over the last few days I have been working on power-up tests of the SFENA HSI that I have had in storage for quite some time. The instrument is completely ARINC 429 based and you might have seen some postings of the SFENA ADI that Javier Pérez-Mato has been able to power up and use for his paper on an Experimental Optical Wireless bus system.
The focus for the next few days and/or weeks will be the SFENA HSI and controlling all its functions via ARINC 429 driven out of XPlane. First, I have to make sure that the device actually powers up and that the majority of the mechanics are in good shape. The instrument takes 115V 400Hz input power at about 0.25A.
What you see in the clip above it he SFENA device first powering up from the power source and then receiving a number or ARINC 429 words. The test labels sent to the HSI are:
- Label 320 - Magnetic Heading
VOR Test (watch the VOR flag in the upper left hand side)
- Label 222 - Omnibearing
- Label 100 - Selected Radial
Course Test (rotating, with NAV flag visible in upper left hand side)
- Label 114 - FMS Course
- Label 116 - Lateral Deviation or cross-track
The ARINC 429 messages are sent by a DDC-42924i5 card and the program driving it is written in C. As this gets more sophisticated I will post the C code or post a reference to it on GitHUB.
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