Difference between puart_write/puart_print and puart_synchronousWrite?

[Anonymous]

What's the difference between these functions and why would I want to use one over the other?

There's some information posted on this thread (Re: Peripheral UART: To FIFO, or not to FIFO) but the question isn't directly answered.

[BoonT_56]

Does this help?

UART Routines

Knowing when UART FIFO is full

[Anonymous]

Not completely.  Those posts are useful in that they discuss some of the "how" but not necessarily the "why" I would choose one over the other.

[Anonymous · Accepted solution]

Andrew,

puart_print will only print a string - until a null character.

puart_write will only write a byte.

puart_synchrononusWrite - Keeps writing and might overflow and missing bytes - Not preferred.

Thanks

JT

[MichaelF_56]

puart_synchronousWrite - will essentially write a series of bytes, but unless you implement some form of flow control external, it will overflow the buffer and could cause bytes to be lost.

puart_write on the other hand will write one byte at a time, check the buffer, then write the next byte in a loop manner.

As JT mentions above, puart_write is almost always preferred over puart_synchronousWrite.