I’m having problems developing I2C for IMX7D Cortex-M4 using FreeRTOS. I started from the example provided by Toradex, available at:
I needed to make some changes to the original code because my i2c is on an alternate pin (ALT4 option).
The problem is:
When I execute a write command (I2C_XFER_Write), the program work properly and I can view the i2c signals on osciloscope. But, when I execute a read command (I2C_XFER_Read), I can’t see any signal on osciloscope (neither SCL or SDA) and no i2c interruption is generated on M4.
Is this a known issue?
Colibri iMX7D 512MB V1.1D