UART/USB handle

Legacy Legacy AirPrime modules
1

Hi to all!, when u want to use the UARTs/USB services are two ways, the FCM services or the raw acces.
In my personal experience i found easier use the FCM services altough it uses an autobaudrate and the eccho is aviable. This two features wasnt really wanted in my development so i used fcm services and then at commands.
So, i use the fcm to initialize and handle the data from the UARTs and USB, and with the at commands i change the baudrate, bits number, flow control and disable the eccho when the port became data mode.

Use the raw acces it brings me lots of difficulties.
Cheers!.

2

No, that’s not true.

FCM uses the UART “as it finds it” - ie, you have to set-up the baud rate, echo, etc, using AT commands before you make your FCM subscription.

Indeed.
FCM is “mature” - well tried & tested.

“raw” access is new, and hasn’t yet had all the wrinkles ironed-out. The documentaion is particularly poor - even by Wavecom’s standards.

:angry: