[info] Manhattan: TLE8888 breakout board

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Manhattan: TLE8888 breakout board

Post by AndreyB »

TLE8888 is a lot of stuff together in one 100 pin package - power supply, low side drivers and configurable single channel VR.

There is also a reference design at the bottom of https://www.infineon.com/cms/en/product/automotive-system-ic/engine-management-ic/tle8888-1qk/

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Re: TLE8888 breakout board

Post by AndreyB »

Would a LQFP-1000 universal board like allow us to start playing with this chip quickly? I know it would probably not be great since no gnd pad in the middle but would it be a start?

What external components would be needed to see power supply working for example? What about VR?
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Re: TLE8888 breakout board

Post by kb1gtt »

The thermal slug is likely important. AKA needs to say cold. This one might work, but you should keep an eye on the slug. The 100 is the smallest on this board, so the slug will likely work. On the 176, I would be concerned that the chips slug would bridge some of the pins.
https://www.ebay.ca/itm/2-TQFP-EQFP-LQFP-176-100-Pin-0-5mm-to-DIP-Adapter-PCB-Board-Converter-Gold-B90/282319634009
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Re: TLE8888 breakout board

Post by 960 »

I dont have a breakout, but have made a full PCB with this IC.

Infineon provided schematics for it.
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Re: TLE8888 breakout board

Post by AndreyB »

@ that's a cool picture, do you want to start a separate thread about your board?
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Re: TLE8888 breakout board

Post by 960 »

russian wrote:
Fri Jan 25, 2019 3:28 pm
@ that's a cool picture, do you want to start a separate thread about your board?
Still some work left, so I'll see.

But do you understand the SPI/MSC communication stuff in the datasheet?

As not all of the outputs are paralell I am not sure if we can use them.

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Re: TLE8888 breakout board

Post by AndreyB »

Two chips (with and without watchdog) are on the way to a secret Carteret assembly facility. No longer mouser has a nice "1000" in stock :)

PS: here is the link to see current stock - https://www.mouser.com/Search/Refine?Keyword=tle8888

Would be fun to check this in a month and in 6 month to see if we see 999 or else.
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Re: TLE8888 breakout board

Post by AndreyB »

960 wrote:
Fri Jan 25, 2019 8:24 pm
Still some work left, so I'll see.
How about now?
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Re: TLE8888 breakout board

Post by AndreyB »

TLE8888 needs a OE command to enable parallel pins? That's a bit unusual but I guess they had their reasons.
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Re: TLE8888 breakout board

Post by AndreyB »

Well, someone has purchased some of these sweet TLE8888 :)

We only need to send a couple of bytes via SPI to enable output channels. https://github.com/rusefi/rusefi/issues/714 first steps https://github.com/rusefi/rusefi/commit/c9b022d5628d511ae9128798f51328ec56578044
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Re: TLE8888 breakout board

Post by AndreyB »

By some miracle CMD_OE could be working. Zero testing and did not check what SPI speed is supposed to be, but worth at least a try.

Also something weird - my TS does not show "tle8888 CS pin mode" control between "tle8888 CS pin" and "tle8888 SPI" while the project seem to have it?
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Re: TLE8888 breakout board

Post by AndreyB »

Current status: no low-side control so far :(

I have OUTPUT2 wired as low side of an LED, I have INP2/PC6 set as injector and self-stimulation toggling that INP2 all the time. No life on the LED.


At the moment I can only sniff PB3 wire since it's both SWO and SPI1 SCK - at least I see SCK on the logic analyzer.

I have some debug data points

Code: Select all

		tsOutputChannels.debugIntField1++;
		tsOutputChannels.debugIntField2 = tx;
		tsOutputChannels.debugIntField3 = rxb;
total 15 SPI commands sent.

Last command 0x239
Last response 0x240
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Re: TLE8888 breakout board

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Re: TLE8888 breakout board

Post by kb1gtt »

Some good stuff for sure.
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Re: TLE8888 breakout board

Post by 960 »

I placed all needed components for a 4 cylinder just to see how compact/few components it get.

It's got
14 Analog
8 Digital
E-Throttle
CAN, VR etc
60 Pin TE AMP Superseal
70 x 60 mm

Add a TLE8110ED, and it's enough for 8 cylinder :-)
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Re: TLE8888 breakout board

Post by AndreyB »

dron_gus has just made some changes and

Code: Select all

boardConfiguration->fuelPumpPin = TLE8888_PIN_20;
actually blinks the LED now :)
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Re: TLE8888 breakout board

Post by 960 »

russian wrote:
Sun Apr 14, 2019 12:21 pm
dron_gus has just made some changes and

Code: Select all

boardConfiguration->fuelPumpPin = TLE8888_PIN_20;
actually blinks the LED now :)
Great news! :-)

Does E-Throttle work also?
Do you see any difference in performance compared to your old H-Bridge?

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Re: TLE8888 breakout board

Post by AndreyB »

my understanding was that the video above shows working tle7209
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Re: TLE8888 breakout board

Post by 960 »

russian wrote:
Sun Apr 14, 2019 4:25 pm
my understanding was that the video above shows working tle7209
Yes, I saw it's working.

I meant the setup/settings for it to work correctly in vehicle.

I haven't tried it in car yet, does it work like expected? and how do I calibrate it?

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Re: TLE8888 breakout board

Post by AndreyB »

960 wrote:
Sun Apr 14, 2019 8:10 pm
I haven't tried it in car yet, does it work like expected? and how do I calibrate it?
Let's continue this at https://rusefi.com/forum/viewtopic.php?f=5&t=592 I suggest making a bench setup with real throttle body
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Re: TLE8888 breakout board

Post by AndreyB »

We are still working on enabling TLE8888 in the default firmware - it is still affecting integration test negatively :( See https://github.com/rusefi/rusefi/issues/764

I was travelling this week but on the way to the airport now to catch my flight home so I will have access to hardware again.
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Re: TLE8888 breakout board

Post by 960 »

russian wrote:
Sun Apr 14, 2019 12:21 pm
dron_gus has just made some changes and

Code: Select all

boardConfiguration->fuelPumpPin = TLE8888_PIN_20;
actually blinks the LED now :)
Do you have a copy of firmware from this stage?

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Re: TLE8888 breakout board

Post by AndreyB »

please try current version just define 8888 count to 1. i believe there is a good chance it would work.

i am still working on enabling 8888 in default firmware
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Re: TLE8888 breakout board

Post by 960 »

russian wrote:
Sat Apr 20, 2019 12:53 pm
please try current version just define 8888 count to 1. i believe there is a good chance it would work.

i am still working on enabling 8888 in default firmware
Yes, some issues, but enough to do some in vehicle testing.

Just found the trigger issue/solution.

When changing this in board.h (PA5) it works fine:

PIN_MODE_INPUT(GPIOA_SPC) | \ origin: PIN_MODE_ALTERNATE

PIN_OSPEED_HIGH(GPIOA_SPC) | \

PIN_PUPDR_PULLUP(GPIOA_SPC) | \ origin: PIN_PUPDR_FLOATING

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Re: TLE8888 breakout board

Post by AndreyB »

960 wrote:
Sat Apr 20, 2019 2:10 pm
Just found the trigger issue/solution.
Thank you for the defect report! A big change was done in this area and it looks like default rusEfi is currently completely FUBAR. Please continue this discussion at https://github.com/rusefi/rusefi/issues/767
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Re: TLE8888 breakout board

Post by 960 »

I am good at posting things in the wrong places :-)

Have everything up and running fine in vehicle today, ready to start, but just cant get any spark/ignition signal from the TLE8888.

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Re: TLE8888 breakout board

Post by AndreyB »

breakout board starts to happen at https://github.com/rusefi/hw_modular/tree/master/TLE8888_Module thank you @!
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Re: TLE8888 breakout board

Post by 960 »

Latest revision:
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Re: TLE8888 breakout board

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Image
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Re: TLE8888 breakout board

Post by 960 »

Great!! :-)

Have you tested them?

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