My Duinomite Mega Canview V4 equivalent Project

My latest update to this project is working on defining the flag bits in CANbus messages H348 and H3C8.
I am using my miniVCI using Techstream software on my notebook and compare it with my Duinomite Mega test page.
So far I have identified and verified against Techstream that (ICE ECU) H3C8 byte 0, bit 2 is the "ICE WARM-UP REQUEST".

I am still working on finding the responce bit in H348 by the HV ECU. (WIP).

So as soon as you start your Prius with a cold ICE the HV ECU will give you a short period of time (say about 2 seconds) to press the EV button. When READY the ICE ECU sends a "WARM UP REQUEST" flag regardless. If you do not press the EV button within that short period of time the HV ECU will acknowledge the warm up request with a flag bit "WARMING UP REQUEST" and then the ICE will start.

 

There is not much point in having a prototype area unless you have access to all the vacant pins of the PIC32. Apart from a vague description I have no idea what the board looks like as there are no pictures available yet..

 

Fantastic!!!

EDITED: Hi JDH2550 - I get the impression that Geoff only wants to release MM basic 4.X with CAN commands using the RX and TX pins for a Color Maximite PIC32. Which probably means that he will not release a MMbasic 4.X with CAN commands that will work with the Duinomite Mega. Is my assumption wrong?

 

I have added a PSD page at this post : My Duinomite Mega Canview V4 equivalent Project | Page 13 | PriusChat

 

I have added another page for CANbus data analysis. As shown below.

The first line of data is live and the following lines are recorded data for every instance a H348 or H3C8 flag byte changes. The lines scroll from top to bottom whilst the most bottom line of data happened last.

Unfortunately I have almost used up the maximum number of subroutines allowed by MMbasic 4.0 so there is not much room left. I do not want to split the program over a number of files and swap files whilst driving due to the relays dropping out causing the ICE to start. But what I will do is add a PROJECT folder containing the BASIC code for the different pages/functions which can be added or taken away as you like. EDITED: I worked out that Gosubs/return do not count as user defined subroutines which are limited to a maximum of 64 so I converted some of my user defined subroutines to normal subrouties using Gosub - Return.

 

Hi JDH2550,

At this point I would like to connect my Lilliputt touch screen/7'' LCD monitor to the RS232 port of the Duinomite Mega for touch screen control. As you are a Software Engineer I am wondering if this can be done. I could use a USB to RS232 adaptor or a UART to USB adaptor. What do you think? I know you have a Lilliputt screen so I was wondering if you had considered doing this. The GPIO has two UART comms 1 and 2 RX and TX. Could these be used with a USB.
The last option I want to use is connecting the touchscreen 4 wire resistance connections directly to the Duinomite Mega GPIO. Any advice? I will also ask Norm for advice. Thanks.

 

Bummer. The problem with this approach is that once it is done I cannot use the touchscreen with my original Canview V4.0 by Norm. Actually I could install a cable directly to the touch screen four wire resistance panel and may need a four-pole toggle switch to isolate the touch panel driver PCB so this way I could still use the Lilliput screen for both Norm's and the Duinomite Mega's Canview V4.0.

EDITED: I am thinking of just getting a numeric keypad like this one NUMERIC KEYPAD - USB/PS2 | eBay
Or a programmable keypad like this one Cherry G84 4700 Programmable Keypad Squirrel Grey PS2 G84 4701TNAUS | eBay

 

I am now adding F9 - DATA LOGGER which will start recording data of all the variables into a CSV file "BATA.CSV" on the micro SD card. Then later the data file can be used to create graphs using Microsoft Excel. I will be using the MMbasic 4.0 timer function to include a time stamp in the first column. It will probably log once per second. The DATA.CSV file will be replaced everytime the logging function is started so to save it the file name needs to be changed.

The BASIC code is very simple and straight forward as shown below:

Code:

  Dim ECT : Dim ICE : Dim timermem : ECT = 30 : ICE = 50
  Open "b:data.csv" For output As 1
  Write #1,"TIME","ECT","ICE"
  Timer=0 : timermem=0
  Do While ECT>1
    If Timer => (timermem+1000) Then
      ECT=ECT-1 : ICE=ICE-1
      Write #1,Timer/1000,ECT,ICE                ' WRITE VALUES TO SD CARD
      Print Format$(Timer/1000,"%0.0f"),ECT,ICE  ' WRITE VALUES TO SCREEN
      timermem=Timer
    EndIf
  Loop
  Close #1

The result is shown below:



EDITED: Due to BASIC program restrictions I have had to split the DATA.CSV file into four seperate data files i.e. DATA1.CSV, DATA2.CSV, DATA3.CSV and DATA4.CSV.
DATA1.CSV - general variables.
DATA2.CSV - general variables
DATA3.CSV - bytes and flags
DATA4.CSV - temperatures

 

I have been following this thread on thebackshed. I am not keen on having to modify my Lilliput screen to expose the touch screen resistance wires. But it is Good to know that there is a working BASIC program available using an interrupt. I may attempt it later. Thanks.
EDITED: Maybe add a second touch screen.