MSP430F67791: Try Data communication using DMA method replace of ISR

Hi,

for all our products you can find code examples in the product folder for the device under the section "Tools & Software" or in our TI Resource Explorer.

Please also read the respective User's Guide chapter 11. http://www.ti.com/lit/slau208

Please note:

MSP430F67791A is recommended for new designs and functionally equivalent, for details read app note.

Best regards,

Andre

Hi,

do you have further questions? If not, please select "Resolved" for the post that solved your issue so this thread can be closed out.
Thanks a lot!

Best regards,
Andre

Hi Sir,

           Now i have working in UART and receive the data in interrupt mode.But i need Receive the data from serial port without interrupt.Pls give me some sample code.As soon as possible....

Hi,

to make this forum useful and also searchable please have only one question per thread so that others can find solutions easier. Also please don't use phrases like "as soon as possible" as it is considered impolite. TI is committed to this forum and the teams are constantly checking all threads and answer all questions in a timely manner and with the highest quality as possible.

To your question.

Basically there are two methods to work with peripherals and communication interfaces in particular. Interrupts and polling.

Polling is the easiest way from a programming point of view, as you only have to check a flag of the peripheral, and when it is set you go on with your code. This on the other hand has some major disadvantages.

1. While polling (=waiting) for a flag, your CPU/peripherals cannot do other things. So if you want to do an ADC measurement in between you cannot as you are waiting for the UART receive

2. While waiting you are in active mode and consume a lot of power.

This is a how you would wait for a UART byte.

while( !(UCA0IFG & UCRXIFG) );
data = UCA0RXBUF;

Interrupts on the other hand are a little bit more difficult to setup, but clearly have advantages in embedded programming as they overcome the challenges I described above.

So I strongly recommend to use interrupts whenever possible.

Best regards,

Andre

Hi Sir,
My Application not suitable for interrupt.Once data is send after wait and receive my response from UART port and process the respopnse output.So this is application process.so give send and receive data .Give me example code without interrupt.