The FlexIO seem to be one of the big plusses of the i.MX RT1010.
Am I reading the schematic correctly that the FlexIO pins are not broken out to the Arduino Sheild pins?
Maybe there are more muxing features than I understand.
FLEXIO is not specifically fanned out to Arduino interface.
The following flexio pins can be used in RT1010 connectors.
Please pay attention to the signal, some pin route to the connector needs to add 0 resister.
Can you specify what do you call RT1010 connectors?
I could not find how those pins you mention are connected ?
I thou can see some connections from FlexIO pins thru 0 ohm resistors to the arduino pins, but those might need a removal of a 0 ohm resistor, for instance, signal FLEXPWM1_PWMB0 seems to be available using pin 13 of J60 and at pin 12 of J56 thru R56, but what I suspect is that in order to use it, you need to disconnect SAI1_RX_BCLK from GPIO_01 and connect GPIO_01 to FLEXPWM1_PWMB0 using R793 .
Does this makes sense?
Please let us know,