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3 Commits

Author SHA1 Message Date
robert-hh
1dc366f901 mimxrt: Replace Pin-config constants by a function call. 
The Pin config setting by IOMUXC_SetPinConfig() is supplied by a
bit pattern. That pattern is specific for a MCU family. In preparation
for supporting the MIMXRT117x family, the constant bit pattern is
replaced by a function call, such that the bit pattern is created
at a single place. The code for this functions was taken from
machine_pin.c.

Note: A working port for the MIMXRT1176 exists already.
 2022-01-27 16:53:30 +11:00
robert-hh
2dd3d88409 mimxrt: Support gaps in the SPI an I2C device numbers. 
That allows also to use e.g. SPI1 and SPI2 instead SPI0 and SPI1.
 2022-01-27 16:53:30 +11:00
robert-hh
98c5703027 mimxrt/machine_i2c: Add hardware-based machine.I2C to machine module. 
It uses non-blocking transfer of data.  Advantage over SoftI2C:
- Higher data rate up to ~3 MHZ.
- Full protocol support.
 2021-07-15 00:36:31 +10:00