• Jeffrey Lee's avatar
    Fix UART TX FIFO thresholds · 914d14db
    Jeffrey Lee authored
    HAL_UARTFIFOSize was incorrectly returning the TX FIFO size, instead of
    the number of characters that can be written when the TX empty IRQ is
    received. This was causing data loss when DualSerial drives the
    interface at high speed (> 19200 baud).
    
    Fix this by programming a sensible trigger level at startup, and
    returning the correct value from HAL_UARTFIFOSize.
    
    Version 0.13. Tagged as 'HAL_OMAP5-0_13'
    914d14db
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