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pt2001 what are those OA lines about? #11

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rusefillc opened this issue Jan 3, 2024 · 1 comment
Open

pt2001 what are those OA lines about? #11

rusefillc opened this issue Jan 3, 2024 · 1 comment

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@rusefillc
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rusefillc commented Jan 3, 2024

image

image

unlike some clearly DNP lines like IRQ/FLAG1/FLAG2 we have those OA lines connected to stm32 on https://github.com/rusefi/rusefi-hardware/tree/main/GDI-4ch but does not look like we do anything with those? what are those about?

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@rusefillc
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The differential amplifier output can be routed to an external pin (OA_1 and OA_2). In this configuration, the device output is usually
connected to an ADC input of the MCU for safety and test purposes.
test and verification, I would say
we wanted to break out as much as we could, but I can see how we are not using it
it can be set to any of the 4 current sensing DACs
maybe useful later on for diagnosing something... but to do that more microcode is needed to expose it
(it doesnt do anything as of right now)
Do you want me to answer it in github as well?
Noxz — Today at 11:37 PM
they can also be used as general IO and flag pins too.. but, again, we're not using them to convey anything

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