My Duinomite Mega Canview V4 equivalent Project

It was a long time ago. I cannot remember. But you need Dmbasic V2.7B which supports CAN commands. mmbasic does not. Bit of a shit fight between mmbasic and dmbasic when it comes to supporting CAN commands.

Try thias shortcut

Directory Listing of /files/Hardware/Dontronics/Olimex/Download Files/

 

Need to use "HIDbootloader" to flash the Duinomite Mega.
Need to flash "DUINOMITE.hex" and
Need to flash "DMBasic-2-16-2012.hex".

It was a long time ago so I am not sure. It took me about a week for me to do this. Once the CANOPEN command works (you do not get an error) you know you have the right DM basic hex file.

 

I have managed to get PID requests to work. The problem is that the request needs to be sent more than once. Maybe JDH2550 could explain why. This is the code. You need to keep pressing the "g" key on your keyboard and the responce will come. You have to send all 8 bytes of data. It would not work just sending the three data bytes. The response time seems a bit arbitrary and may have to do with making sure the Canbus is free when you send the PID request. But how do you check that the Canbus is free when you send the PID request? Maybe the program misses the return message whilst it is checking the inkey$. Maybe the can receive command is too late and misses the return message. Which case maybe we can run two basic files simultaneously, one to just send PID requests. I am now considering replacing my getcandata function with a PIDrequest function or maybe use both.

Code:

10 Cls
20 Print "                          CARDUINOMITE"
30 Print " "
40 Print " "
100 Print "        CANview program - shows 07EA CAN messages on screen"
110 Print " "
120 Rem declare variables for message reception
130 Dim rxId : Dim rxType : Dim rxLen : Dim rxData(8) : Dim rxOk
135 Dim txData(8) : Dim txok
140 Rem set CAN baudrate to 500 kbps and connect to the CAN bus
150 CANOPEN 500000
160 Rem start the program loop
170 Do
180 txData(0) = 2
190 txData(1) = 33
195 txData(2) = 195
196 txData(3) = 0
197 txData(4) = 0
198 txData(5) = 0
199 txData(6) = 0
200 txData(7) = 0
210 If Inkey$ = "g" Then CANSEND &H7E2,0,8,txData(0),txOk Else GoTo 240
220 If txok = 1 Then Print "SENT OK"
230 If txok = 0 Then Print "DID NOT SEND"
240 Rem
250 Rem check if a message was received
260 CANRCV rxId, rxType, rxLen, rxData(0), rxOk
270 If rxOk = 1 Then
280 Rem process message data
300 If rxType = 0 Then type$ = "STD" Else type$ = "EXT"
400 Rem display the message X07EA
410 If rxId = &H7EA And rxData(0) = &H10 Then
420 Print rxId "    "rxLen;"  "rxData(0);rxData(1);rxData(2);
422 Print rxData(3);rxData(4);rxData(5);rxData(6);rxData(7)
425 EndIf
430 EndIf
440 Loop
470 CANCLOSE
480 Cls
490 Print "        CANPORT CLOSED"
500 End

See photo.

So I think we should use a PIDrequest function like this one:

Code:

Function pidrequest
  Local nLoop
  Local rxId : Local rxType : Local rxLen : Local rxData(8) : Local rxOk
  Local d1 : Local d2
  Local txData(8) : Local txok
  d1=0 : d2=0
  nLoop = 0
  pidrequest = 0
  txData(3) = 0
  txData(4) = 0
  txData(5) = 0
  txData(6) = 0
  txData(7) = 0
  txData(0) = 2
  txData(1) = 33
  txData(2) = 195
  do
    CANSEND &H7E2,0,8,txData(0),txOk
    If txok = 1 Then
        canrcv rxId, rxType, rxLen, rxData(0), rxOk
        If txok = 0 Then Print "DID NOT SEND
        Print "SENT OK"
        If rxok = 1 Then Print "RECEIVED OK"
        If rxok =  0 Then Print "DID NOT RECEIVE"
        If (rxId = &H7EA) And (rxData(0) = &H10 and d1=0) then MG1t = rxData(1) : d1=1
        If (rxId = &H7EA) And (rxData(0) = &H10 and d2=0) then MG2t = rxData(2) : d2=1
    Endif
    if d1=1 And d2=1 then
        pidrequest = 1
        exit function
    Endif
    if nLoop > 8000 then exit function
    nLoop = nLoop + 1
loop
End Function

 

That is correct. I am not allowed by law to distribute my version of DMbasic. In your case you have to add line numbers to my canview.bas program using a program like windows notepad. Either that or you somehow manage to compile the CAN commands with mmbasic source code. Good luck, you could also keep pestering Geoff from MMBasic - BASIC Interpreter Home Page and Frank from DMbasic. If you pester them enough they might give in and just do it. Frank from DMbasic has closed source rights to the CAN commands and Geoff from mmbasic does not. And they will not collaborate. So just keep pestering them. It is just a matter of waiting for mmbasic to come out with CAN commands. Just need to wait.

Anyhow it sounds like your Duinomite Mega is now working.

The post by jhd2550 the back shed forum below pretty much sums it up.

JHD2550 - did you get legal advice, are you sure you are allowed to distribute instructions?

FWD - You can ask JDH2550 for detailed instructions on merging source codes.

 

Got the thumbs up on cost effectiveness for this project!!

I have added some more PID values to my Canview_V4_BMS+_XXXXXXX.bas file. I have tested my program standalone with relay box (without Norm's Canview V4) and drove to work without any problem. The code keeps sending the PID 556 endvoltage every 40ms or so. The BMS+ endvoltage can be changed up or down in 5 volts steps by pressing the up or down arrow key on a keyboard. The PHEV/ORIG button also works. When in ORIG mode the endvoltage is 238V. When you go back to PHEV the BMS+ endvoltage is 195V. The BMS+ endvoltage has a range of 195v to 235v. The BMSplus code from Norm needs to match this range.

 

I observed that the Canview V4 was sending the 556 PID about every 40ms. I guess that Norm did this in case a rogue corrupt message changes the BMSplus end voltage or even disables it. So sending the 556 PID periodically is a guarantee.

 

And demy you the wonderful Duinomite learning experience. If you communicate with JDH2550 you can organize getting mmbasic with CAN commands. Maybe you missed that point.

 

It appears that the 02 in the PID request 7E2 02 21 C3 is offset addressing. I get different values for 03, 04 and so on.

 

Does anybody know what the commands are for clearing DTC for ICE ECU and HV ECU. I tried using the ones supplied by Vass but they did not work.

EDITED: DTC clearing now working.