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RoadTests & Reviews

11 Posts authored by: andrewj
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 ...
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 ...
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 ...
In this instalment I’m going to cover downloading, installing and setting up the development software:   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: The IDE, e2Studio is based on Eclipse CDT which is a great decision as it is widely used and supported.  Installation ...
In this instalment I’m going to cover how easy it is to get to grips with the board: Setting up a Renesas account Updating the firmware Undertaking the e-learning provided Checking out support options for probable future use I’ll apologise for it being a bit text heavy.  Some of the ground I cover involves material that you have to sign up for and I’d feel uncomfortable posting images or large tracts of that content.   TL;DR; I’m aiming these posts at those ...
I applied to road test the RX65N MCU EV kit for two reasons: I thought that I could test the product by re-producing the HMI (Human-Machine Interface) that I created for my last project - a bench power supply - which uses a 4Duino from 4D Systems.  I understand that this is an evaluation board for the RX65N group of micro controllers so any conclusions must be made in light of that specific purpose, but it comes with an LCD and provision for the mounting of Arduino headers and SD card. ...

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