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So the last few weeks have been a carnival of trial-and-error, and I had to make use of all my available skills, and each time I had to use a different one, I thanked myself for acquiring it in the past.   Most if not all of these aren't the fault of anyone else but me, I'm a relentless tinkerer and I always do stuff to my stuff   This is why I decided to write about this kind of experiences in a blog, separate from my work-in-progress Beaglebone AI Roadtest review.   So, it all s ...
In this test, I want to be able to set up data output through the serial port to a host machine connected over the USB port.  I’d see data capture as a typical use case for devices with some control over what data is sent, and when.  I’m not creating a host application to process the data, I will just use a terminal application to view it.   TL;DR: The RX65N can be configured for Host (USB A) or Peripheral (USB B) Peripheral use requires the same port as the debugger ...
Introduction Calibration Checks Measurement captures Generator Test Update 18th January 2020 Conclusions   Introduction  For this blog I am going to use the 3 Series MDO to check the performance of a rotor reflectometer. This instrument is utilised on generator rotors to determine the presence of interturn faults within the rotor winding.   To do this the reflectometer applies pulses to each end of the rotor winding in alternating manner and an oscillosco ...
Unboxing Paperwork supplied Passive Probes Digital Probes Build quality of oscilloscope Start-up Scope Probe Compensation Insulation Tester Measurements RF Measurements USB Analysis HDMI Output and remote LAN operation Transport case Conclusions   This is the kick-off of my review of the Tektronix 3 Series MDO to cover the arrival of the unit, unboxing, review of kit contents, and a few basic tests.   Unboxing  The oscilloscop ...
In this post, I'm using the ADC and I2C features to finalise the display and show the board/MCU interfacing with the external world.  I'm particularly interested in how much more complex this is than, say, something like an Arduino which is well-provisioned with libraries to help with this.   WWTL;DR:I’m aiming these posts at those who are not familiar with MCU development to give them a feel of what they will go through.  I know not everyone will be interested in reading th ...
Limitations for my Roadtest The RX65N MCU operates at a voltage from 2.7V to 3.6V.  The 12-bit ADC analog input pins voltage is AVss <= Vpin <= AVcc.  AVss and AVcc do not need to be tied to Vcc.  On the Envision board, VCC = AVcc = 3.3V; Vss =AVss = 0V.  There are two 12-bit conversion units: 0 and 1; thus, AVSS0; AVCC0; AVSS1; AVCC1.  The Arduino pins are tied across both groups.   Therefore, voltage on the Analog pins must lie between 0V and 3.3V.  I ...
I need to solder on some headers to the board and this requires that the LCD is removed.  It has two connections: one for the LCD itself and one for the touch panel: In close-up, sorry for the picture quality: I’m not sure how these disconnect as I’ve not seen them before.  They appear to be solid, i.e. there’s no give in them so squeezing to unhook doesn’t seem right.  There’s no information on how to do this so I assume they just pull/push ou ...
My Road test is to test out the development tools and features of the board in building out a version of the HMI I created for my power supply (and then extend the functionality using other board features.)   TL;DR; I’m aiming these posts at those who are not familiar with MCU development to give them a feel of what they will go through.  I know not everyone will be interested in reading this in detail so I’ll provide a brief summary of the points: Building the emWin HMI w ...
Well, I want to talk about my experience with the raspberry pi 4, from the pint of view of practical - production small server.   Wait a moment... have I said Production? Hell yes, is a little bit risky but let's create some awesome with our amazing piece of technology. Firstly I want to thank the community element14 for selecting me to make this possible, giving me one Raspberry Pi 4 2GB version, that is a piece of art, as software developer I can run almost anything on it, and It saves m ...
EDITED 10/12/19: Resolved issue with the base build.  See below.   This is just a brief note on getting started with the Segger emWin gui development tool which is available free to all Envision kit users.  It is necessary to register with Segger as part of the download process but it’s simple enough.   The download, once unzipped, consists of 4 directories:   Doc: contains the emWin API documentation emWin_RX65N: contains an e2Studio project which is a dupli ...
There are DNF positions on the Envision Board for users to extend the capability with Ethernet, SD card and a joystick.  The User Guide details these with a set of part numbers and they are tracked up to pins on the MCU so it should just be a case of getting the parts needed and soldering them on.  Some will need the LCD removing to do so which whilst, apparently, not difficult has not been made as simple as really it ought to be given this need.  As part of my road test I am (was ...
I want to get another simple program working that requires more effort on my part in utilising the tools available.  In this brief note, it is to create a Blinky app (similar to the tutorial that failed in part 3) whilst utilising the Smart Configurator.  I know Blinky is boring, but the idea is that the LED will blink under a timer interrupt OR under a user switch press.  I’m not so much interested in that per-se, but very interested in how the Smart Configurator works with ...

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