MC33816 and PT2000 from NXP have quite different names but we believe those are pretty similar products, both are programmable with a full-blown assembly language.
The L9781 is a multi valve pre-driver capable of driving 11 external N-channel logic level MOSFETs, controlling up to 5 inductive loads through peak and hold current control and one DC/DC step-up converter, providing full protection against accidental faults on the external hardware. The load peak and hold current control (together with the diagnosis) is done by the internal configurable Finite State Machines (FSMs) needing only the start of actuation commands from the main microcontroller.
Does anyone have the brains to compare the NXP solution to ST solution? Are there any other options on the marker?
If we look at Bosch chips can we be sure of supply? It has been my experience that the chips are available either to OEM clients or on a very patchy aftermarket basis.
That or they can change part numbers seemingly at random making identifying chips a game of whack-a-mole.
This makes DIY build pretty much impossible and opens us up to obsolescence when Bosch just decide to end the production of a chip as their main OEM customer has stopped using them.
If we look at Bosch chips can we be sure of supply? It has been my experience that the chips are available either to OEM clients or on a very patchy aftermarket basis.
That or they can change part numbers seemingly at random making identifying chips a game of whack-a-mole.
This makes DIY build pretty much impossible and opens us up to obsolescence when Bosch just decide to end the production of a chip as their main OEM customer has stopped using them.
I know it's not a ideal solution.
Bosch IC's have always been a pain.
If we could gather some more part numbers, search would be easier.
What helps, is they did not have any other GDI driver for that long time period.
At the moment it seems to be just the PT2000 available, and I just dont like it.
Some A2L information here: https://www.asam.net/standards/detail/mcd-2-mc/wiki/
that includes a dll for a translator. I have used A2L files previously with CANape and CCP, I may have some more information somewhere, MATLAB has a utility that can extract data but its probably part of one of the add ons targeted at ECUs which are quite expensive.
Some A2L information here: https://www.asam.net/standards/detail/mcd-2-mc/wiki/
that includes a dll for a translator. I have used A2L files previously with CANape and CCP, I may have some more information somewhere, MATLAB has a utility that can extract data but its probably part of one of the add ons targeted at ECUs which are quite expensive.
Great info! Thanks
I use them with Winols, but there are not many free/cheap softwares to work with ASAP2 files.
This is the only one I know of:
Some A2L information here: https://www.asam.net/standards/detail/mcd-2-mc/wiki/
that includes a dll for a translator. I have used A2L files previously with CANape and CCP, I may have some more information somewhere, MATLAB has a utility that can extract data but its probably part of one of the add ons targeted at ECUs which are quite expensive.
Great info! Thanks
I use them with Winols, but there are not many free/cheap softwares to work with ASAP2 files.
This is the only one I know of:
so I'm not the only that go the idea of using an stm32g4, interesting. I'm not using rusefi but I designed and build a 6 channel driver some months ago and it is currently running in two cars with VAG CBZA TFSI engines
for 6 channels with the right pinout it is possible to setup the timers so that once they are configured everything runs without software having to do anything.
To add a few comments. IME a 7805 is not well suited for making 5V in an ECU, the high dropout can cause issue with starting were the battery voltage might be low. I'd be concerned about using Vbat for the gate drivers, might hit UVLO during starting and max voltage for the drivers and gates are marginal for what you might see peak on Vbat
so I'm not the only that go the idea of using an stm32g4, interesting. I'm not using rusefi but I designed and build a 6 channel driver some months ago and it is currently running in two cars with VAG CBZA TFSI engines
where can I read more?
what is controlling HPFP and else in your setup? any of that is open source?
so I'm not the only that go the idea of using an stm32g4, interesting. I'm not using rusefi but I designed and build a 6 channel driver some months ago and it is currently running in two cars with VAG CBZA TFSI engines
where can I read more?
what is controlling HPFP and else in your setup? any of that is open source?
I haven't written anything about it anywhere, but ask away. It is basically a quick prototype add on to get some experience with GDI put on top of an ECU a friend of mine makes . That ECU (with a converter board) plugs in instead of the the stock ECU and runs everything including the HPFP it is just the injector drivers that is an add on. It is not open source
)