Started by suvidhk February 16, 2007
I observed foll. behavior for the UART0 of LPC2368 :

1) Even if the FIFO is on I get an interrupt for receive data
available for a single char instead of receive character time out.

2) When the transmitter empty interrupt comes and I have nothing to
send and I do not disable the THRE interrupt yet it never occurs again
unless I load some data and transmitter is empty again.

The first behavior is definately not according to datasheet and hardly
any use of FIFO.

The 2nd one has nothing in datasheet but I think normally a UART keeps
on interrupting if its transmitter is empty.

Did anybody observed this type of behaviour on any of the LPC.

An Engineer's Guide to the LPC2100 Series