gnuecu videos - by Balle Balle Radio

FreeEMS v0.0.12 Ignition channels matching fuel channels

Length: 0:22
Rating Average: 5.00 from 1 people
View Count: 123' favoriteCount='1
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

Demonstration of fairly accurately timed PIT based ignition dwell. This is not useful yet as there are a number of bugs in it, however it was time for a release bugs or otherwise.

FreeEMS v0.0.11 Fuel Pulses w/ timing, overlap, etc

Length: 0:44
Rating Average: n/a
View Count: 597
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

FreeEMS fueling algorithm working perfectly on the scope :-) happy days indeed! Attached to the JimStim and hooked to my sound card with xoscope running under Debian Linux I vary the pulse width and timing and rpm to demonstrate fueling stability under all conditions :-)

FreeEMS low voltage counter in action

Length: 0:30
Rating Average: n/a
View Count: 168
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

Our first feature that MegaSquirt doesn't have :-) The far yellow lights that change when the sound changes are a direct readout of the 8 bit counter of low voltage interrupts. So, if you have dirty power, or dodgy starting, you should see this in your logs as non zero. (one day when we have...

FreeEMS v0.0.8 JimStim to IC, Variable Overlapping Duty

Length: 1:27
Rating Average: n/a
View Count: 171
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

FreeEMS version 0.0.8 is dedicated to Glen my former boss and his saying "your best work yet" which fits this release nicely. Though a little messy and hacky, it is in fact, my best work yet!(tm) This release adds overlapping injector duty that proved to be tricky to make work if trying the wrong...

Injector code with and without self scheduling

Length: 0:30
Rating Average: n/a
View Count: 57
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

3 channels have self scheduling code enabled, and 3 do not. the difference is clear in the cross over when the pulse width goes past the trigger tooth point.

FreeEMS v0.0.7 JimStim to IC, Variable Duty, Variable RPM

Length: 0:34
Rating Average: n/a
View Count: 340
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

This release contains demo code to inaccurately read the NipponDenso 24/2 distributor signals. DO NOT try to use this on a car, it probably will not work, and if it does, it could damage your engine. Scheduled on top of the JimStim input are 6 semi sequential outputs for a v12 engine with...

FreeEMS interrupt load demonstration

Length: 1:59
Rating Average: n/a
View Count: 81
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 interrupt load megasquirt open source

Even though the current Timer interrupt code is short, simple, and efficient, there are obvious visible artifacts present in the main loop driven code when the ISRs run one after the other 6 in a row. The video is 2 minutes long and has the intro to Pink Floyd - Wish You Were Here in it, but...

FreeEMS v0.0.6 example timer code release

Length: 0:22
Rating Average: n/a
View Count: 78
Author: diyefi

Tags: diy diy-efi diyefi ecu efi ems free freeems freescale gnu gnuecu gpl HC9S12XDP512 JimStim megasquirt open source Stim

Version 0.0.6 adds timer controlled inputs and outputs. Currently it only echoes the JimStim signal out to a pair of LEDs and a piezo, but the next release should see the channels scheduled appropriately based on the timer inputs and fired with timer controlled outputs properly configured.