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Old 02-06-2013, 07:48 AM   #461 (permalink)
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Wish I'd seen this last night, I'd already have it flashed .
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Old 02-06-2013, 08:51 AM   #462 (permalink)
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Default IMA Boost (Thunderbirds are go!)

I've tested V12 this morning and IMA boost seems to work well. Makes it quite a bit more lively. I shall leave it installed in my Lithium car.

One minor issue after flashing I could not cancel Autocancel until I was driving along at > 10mph, but once it was off it was fine. Not sure if that is my second counting going wibble or a little bug/logic error. Anyway everything else worked fine so I won't investigate that until the next version.

Now looking at the display code

Edit

The text data for the various screens will be stored in 255 bytes of EEprom we have available. This saves code space for the actual program.

In the old 16x2 serial lcd BCM gauge the eeprom was written like this.
The first two or four bytes in each row are lcd control codes, the rest is ascii text.
We will have something similiar to the below for our 20x4 display.

Load EEPROM with text Data screens and menu options (255 bytes)

'124,157,254,128,"BCM Gauge V3.03"
EEPROM 1,[124,157,254,128,66,67,77,32,71,97,117,103,101,32,32,86,51,46,48,5 1]

'254,192,"www.150mpg.co.uk"
EEPROM 21,[254,192,119,119,119,46,49,53,48,109,112,103,46,99,111,46, 117,107]

'254,128,"Temp=U Splash=D"
EEPROM 39,[254,128,84,101,109,112,61,85,32,32,83,112,108,97,115,104, 61,68]

'254,192,"HexDis=R Light=L"
EEPROM 57,[254,192,72,101,120,68,105,115,61,82,32,76,105,103,104,116 ,61,76]

'254,128,"HexTx=U NorTx=D"
EEPROM 75,[254,128,72,101,120,84,120,61,85,32,32,78,111,114,84,120,6 1,68]

'254,192,"RstSoc=R XtSoc=L"
EEPROM 93,[254,192,82,115,116,83,111,99,61,82,32,88,116,83,111,99,61 ,76]

I'm sure you get the idea.

The program will write the flag status for all the options to the eeprom and a background subroutine just transfers one byte from the eeprom per loop of the program to the lcd. The software will be able to write 30 characters a second to the screen. We may be able to just write the changed bytes to the screen with some cunning code for a quicker refresh rate. The EEprom has a million write lifecyles minimum so I doubt you are going to change the various options that often!

Now just need to decide on the text. I would like 8 options on the display, 2 per row like the OBDIIC&C gauge so that gives 9 characters per option plus a couple of spaces in the middle. I'm happy to see some ideas for the text layout or description.

e.g. Something Like this for option selection.

Ast Dis 1 Reg Dis 1
Ast Pro 1 Reg Pro 1
Ast Bos 1 Reg Bos 1
AutoCan 1 C&C Act 1


It would take 2.4 seconds to draw the screen at first turn on then updates would happen in the background without you noticing.

I'm going to try and run the lcd by piggybacking it on the Up button connection on the pcb so the led still operates as now.
We shall see how it goes. I can detect when the button is being pressed and simply pause the display output until it is released.
The lcd can be optionable
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Last edited by retepsnikrep; 02-06-2013 at 12:27 PM.
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Old 02-07-2013, 08:19 AM   #463 (permalink)
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Oh that's cool with the button piggybacking... I'm sure at least a couple of the people with this gizmo installed probably don't feel comfortable soldering wires to it.

Does the SparkFun device have onboard LEDs like some of the others I've seen?

EDIT: Yes, I forgot to flash my IMAC&C last night when I got in. Do I have some regrets? Yes. Definitely looking forward to trying the 150% mode.
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2004 Honda Civic Hybrid "Eeyore" @ 51 mpg
-MaxIMA battery from Bumblebee
-OBDIIC&C
-IMAC&C
-Lower grill block

RIP 2000 Insight, 40k miles @ 69.2 mpg
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Old 02-07-2013, 12:38 PM   #464 (permalink)
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Sam, was planning to add a remote button as Pete did by adding on/attaching a tack switch to the legs of the buttons. my cancel button is starting to deteriorate. 1s. I used lamp wire copper stranded, wrapped and tight it's rattle free. . pete V12 works supper strong it lower the torque curve lower, car move out effortfully, tested a few blocks last night, untested stop and go, but city seems to hold the SOC as normal, Get into the E.M faster,progressively what the engine can handle, and can add to it. Fantastic idea. you know same as Pete ,it might be cancel command is fighting the auto stop to get a command in ( Iam canceling heavy city regen) as I do press it in auto stop range. I try adjusting earlier.

Last edited by retepsnikrep; 02-07-2013 at 11:32 PM. Reason: Corrected version number.
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Old 02-07-2013, 11:42 PM   #465 (permalink)
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If we use the assist (Up) button connection on the pcb then one wire may have to be soldered onto the pcb for the lcd signal. The serial lcd has three wires. +5v -neg and signal. The + & - we can get by putting a second wire in the 5v power feed screw terminals on the board. I'll post a video of where to connect the wires in due course when i find out what works. The sparkfun 20x4 lcd does not have leds on board other than for the lcd backlight.

The other way to connect would be to use a connector on the 5 way programming sil 0.1" pins. That might be easier and better. I'll look at that. It also means you would unplug the lcd before attaching the programer which is better for the lcd display.

I drove 150 miles yesterday with the assist boost and it works well, no glitches and no effort reqd to use it. Busy now for a week or so, so it will give you all time to test the latest versions and report back.

I also built two more HCH1 pcb's over here, one for Denis in France and one for me to do some bench testing of the new display software.
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Last edited by retepsnikrep; 02-08-2013 at 12:07 AM.
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Old 02-10-2013, 05:39 AM   #466 (permalink)
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Default Display testing.

I have the sparkfun 20x4 serial lcd wired upto my test IMAC&C pcb on the bench which is fed by a spare UK ecm I have.
I'm using the ICSP connector method to start with for connecting the lcd.

Now need to finish my test code perhaps tonight and give it a try tomorrow.

No reports or issues with V11 or V12?
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Last edited by retepsnikrep; 02-10-2013 at 05:45 AM.
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Old 02-10-2013, 06:27 AM   #467 (permalink)
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Version 12, with boost mode is amazing! Other than the previously stated button presses it works well.
On two occasions however I have had the LED flashing rapidly red/green and it would not respond to any button presses it was also giving max assist at idle.
All I had to do was turn the ignition off remove the key and waiting for everything to "sleep" and hey presto everything would be back to normal.
I'm not sure if I am causing this Behaviour by means of an inadvertent button press or if the running code just crashed?
I could get the same to happen with the LED flashing rapidly red/green by pressing a VLP on the cancel button on version 10, but it didn’t give assist and it could easily be cancelled by tapping the cancel button.
Ideas anyone?
It's most likely to be me.
I have received my Sparkfun serial LCD also I ordered and received the PIC12F1822 Just in case it is required.
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IMAC&C-LCD Ver 15 PIC12683.
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IMAC&C-LCD, Ver 15 PIC12F683.
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Old 02-10-2013, 12:56 PM   #468 (permalink)
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I haven't seen any of that behaviour but it could be a code glitch.

Sounds like you went into cruise mode by mistake, which will cause the assist to ramp up to max if the actual speed is below the target speed.

Remember two of the functions swapped places on the cancel button for V11 onwards.

So any press MP over 1s but less thas 3s on the cancel button will activate cruise mode.
Any short press on the cancel button should deactivate it though.

Once in cruise mode the assist/regen buttons change function and alter the target speed by one unit not the assist or regen levels.
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Old 02-10-2013, 03:31 PM   #469 (permalink)
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It's been working flawlessly for me... no issues at all?

Saves a lot of assist button presses, adds a few cancel button presses, all in all, a significant win .

Sam
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2004 Honda Civic Hybrid "Eeyore" @ 51 mpg
-MaxIMA battery from Bumblebee
-OBDIIC&C
-IMAC&C
-Lower grill block

RIP 2000 Insight, 40k miles @ 69.2 mpg
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Old 02-11-2013, 01:21 PM   #470 (permalink)
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Completed a 70mile round trip to work and back today with no issues at all, getting used to the button configuration now.I'm getting 61mpg which for the colder weather conditions I think is really good, well impressed with it!
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2005 Honda Civic IMA 74k
OBDIIC&C, Ver21 PIC16F886.
IMAC&C-LCD Ver 15 PIC12683.
...........................................
2005 Honda Civic IMA 44k
OBDIIC&C, Ver27 PIC18F2620.
IMAC&C-LCD, Ver 15 PIC12F683.
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