Hi,
I faced a strange behavior in the execution of the firmware sequence, I have used RAM mode booting to load the firmware while developing and testing. In the firmware, I have created a thread in which CX3 will communicate GPS through I2C. The I2C block of CX3 is initialized at ApplnInit API.
In this case, if I load the firmware directly to the RAM then everything works fine. If I write the same firmware into SPI flash and then change the boot mode to SPI then I2C between CX3 and GPS fails initially. After debugging I found that the thread in which CX3 communicates with GPS through I2C was executed before ApplnInit - I2C init part. After I fixed that issue by adding some delay in the starting of the thread.
But I need clarification on how the execution sequence differs if boot mode changes between RAM and SPI. Please clarify this.
Beat Regards,
Vignesh Kumar R.
