Commit c8437f97 authored by Committed by Damien GeorgeBrowse files
stmhal: Increase the priority of UART IRQ.
The UARTs have no FIFOs, so if interrupts are disabled for more than a character time (10 usec at 1 Mbit/sec) then characters get dropped. The overhead for handling a UART ISR is about 0.5 usec, so even at baud rates of 1 Mbit/sec this only corresponds to about 5% of the CPU. Lower baud rates will have less of an impact.