I used Beekit MAC codebase for MC13224,
I don't know why UART TX is not generate interrupt in *case.
case 1: I write by function UartWriteData(UART_1, "P", 1); interrupt generated
*case 2: I write by direct register UART1.Udata = 'P'; interrupt not generatep
I would like to write at direct uart register(UART1.Udata), when FIFO empty then generate Interupt Tx
Please knowledge to solv for me.