E4OD Operation
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Postmaster
Joined: Aug 2001
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From: Delaware
BTW, The '53 has an E4OD with a Baumann Controller. The controller that I'm working on is for my '83 F100. It's just a beater with a good running 302 and a rebuilt E4OD. I only use it to haul large stuff or heavy loads. It's also a good truck to experiment with, as I don't use it often.
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Postmaster
Joined: Aug 2001
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From: Delaware
The trans controller is behaving much better, but I'm having trouble with the crimps on the connector pins. The pre-crimped pins will be here today, but I might not have time to install a new connector with the new pins until Sunday.
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From: Delaware
The cable problems are fixed, and the RPM calculation seems to be OK, but I'm still having a problem. The controller will shift a couple of times then stop. I have some Print statements in the code, but my terminal doesn't get any output after the controller stops shifting.
I think that there is some exception that causes the processor to get lost. I'll try to get help from the processor board people.
I think that there is some exception that causes the processor to get lost. I'll try to get help from the processor board people.
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Joined: Jun 2014
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Does it run any better without the print statements? Sometimes prints can disrupt interrupt handling. It might be easier to set up a couple of LEDs on output pins and send a code out on those for debugging (I'm assuming you don't have an oscilloscope to look at signals?). You might want to make sure that any of the input pins that have alternate functions that are useable as interrupts are set up as general I/O and not the interrupt alternate function.
Just a thought.
Sounds like you're getting pretty close though. Nice job.
Lonnie
Just a thought.
Sounds like you're getting pretty close though. Nice job.
Lonnie
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Postmaster
Joined: Aug 2001
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From: Delaware
Does it run any better without the print statements? Sometimes prints can disrupt interrupt handling. It might be easier to set up a couple of LEDs on output pins and send a code out on those for debugging (I'm assuming you don't have an oscilloscope to look at signals?). You might want to make sure that any of the input pins that have alternate functions that are useable as interrupts are set up as general I/O and not the interrupt alternate function.
Just a thought.
Sounds like you're getting pretty close though. Nice job.
Lonnie
Just a thought.
Sounds like you're getting pretty close though. Nice job.
Lonnie
I might try to simplify the code, and use just the necessary statements to debug it. I probably won't get much done until after the holiday.
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Postmaster
Joined: Aug 2001
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From: Delaware
I used the SuperPro with the LPC1756, because it has a built-in DAC. It should be overkill for this application, but it simplified my hardware.
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From: Delaware
I tried a simplified version of the code. It shifted through all 4 gears. I need to install some LEDs to verify that, however. I have the LED drivers already implemented in the code, and hardware.
I have the EPC disconnected, so some of the shifts are hard. It's possible that the original code was OK, but the 'Print' statements were messing it up.
I'll get the LEDs first, then try the old code, then reconnect the EPC. I disconnect the EPC because I was afraid that the EPC ground current was the cause of my problem.
I have the EPC disconnected, so some of the shifts are hard. It's possible that the original code was OK, but the 'Print' statements were messing it up.
I'll get the LEDs first, then try the old code, then reconnect the EPC. I disconnect the EPC because I was afraid that the EPC ground current was the cause of my problem.
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
I spent most of 19 years driving with an oscillograph in the car or truck powered by an inverter. The prices have come down a lot recently.
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Danlee
Are you particular about what color LEDs you want? I have a bunch and I could send you some if you'd like.
Mark is right. If your scope is a relatively newer one (mine is a small Tektronix DSO probably 10 years old or so) I think it would run with no problem on an inverter.
Let me know about the LEDs.
Lonnie
Are you particular about what color LEDs you want? I have a bunch and I could send you some if you'd like.
Mark is right. If your scope is a relatively newer one (mine is a small Tektronix DSO probably 10 years old or so) I think it would run with no problem on an inverter.
Let me know about the LEDs.
Lonnie
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Postmaster
Joined: Aug 2001
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From: Delaware
Danlee
Are you particular about what color LEDs you want? I have a bunch and I could send you some if you'd like.
Mark is right. If your scope is a relatively newer one (mine is a small Tektronix DSO probably 10 years old or so) I think it would run with no problem on an inverter.
Let me know about the LEDs.
Lonnie
Are you particular about what color LEDs you want? I have a bunch and I could send you some if you'd like.
Mark is right. If your scope is a relatively newer one (mine is a small Tektronix DSO probably 10 years old or so) I think it would run with no problem on an inverter.
Let me know about the LEDs.
Lonnie
I drove the truck, and it shifted through all 4 gears. All of the LEDs turned on at the proper time, except 3rd gear. I think that I have a wiring or software error. The 3rd gear and the Torque Converter lockup LEDs are swapped. I don't have TC lockup code running now.
Other than that it worked fine, but it didn't want to down shift to 1st, after driving a distance. It seems that some value must be accumulating, and preventing downshifts to 1st gear.
My scope is a 30+ YO Hewlett Packard unit that I purchased used for a few bucks. I think that it would take a large inverter to power it. It is portable, but it weighs quite a bit.
I'll solve the LED problem, and look into the downshift problem.