STMf030 USART

[sanjib]

Posted on April 05, 2014 at 10:39The original post was too long to process during our migration. Please click on the attachment to read the original post.

[Tesla DeLorean]

Posted on April 07, 2014 at 16:07

Try GPIO_AF_0 for PB6/PB7

Good call laurent Something that would have been caught by observing the pin, and reviewing the manual for the part.

[Tesla DeLorean]

Posted on April 07, 2014 at 16:16

http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00088500.pdf

[stm322399]

Posted on April 07, 2014 at 16:46

It happened to me so many times ... 😉

[sanjib]

Posted on April 08, 2014 at 07:58

HI

Thanks for your support . To check I have implemented the code in the same board for stm32f030R8t6.connect by wire PB6 tx and p7 as rx in stm32f030r8t6. I get to know that data is getting transmitted . but RXNE bit is never getting set. I write the glowing LED line to check whether it is entering or not but it's not . So the problem is in RXNE bit.what may be the problem.

[sanjib]

Posted on April 08, 2014 at 08:03 The original post was too long to process during our migration. Please click on the provided URL to read the original post. https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I6lZ&d=%2Fa%2F0X0000000buu%2FZ4lxIcH3GuxGT21U3KIv_dTgeNiBkr8CvlrTXV3.9uU&asPdf=false

[Tesla DeLorean]

Posted on April 08, 2014 at 08:31

Have you observed any of the signals with a scope?

What if you generate a serial stream from somewhere else, and feed it into the USART1_RX (PB7)? Does it receive then? What if you create a small receive only test app? How about toggling PB7 as a GPIO, and confirming you're looking at the right pin? You could do things more effectively with the LEDs

[sanjib]

Posted on April 08, 2014 at 09:38

sorry clive the data is not sending too . I have checked witg the help of hyper terminal(docklight) connected with the PC .. It is not sending  in the hyperterminal . but I am not getting in the main in the below line

while ((uart1TxIndex < BufferSize) && (uart1RxIndex < BufferSize)); then why the uart1Index is getting increment 7 in this case as AAAAAAA data i am sending. Really I am not understanding where the configuration got wrong really?

[waclawek.jan]

Posted on April 08, 2014 at 09:39

Note, that das.sanjib attempts to use the halfduplex mode (at least that was the case initially, I don't follow).

JW

[Tesla DeLorean]

Posted on April 08, 2014 at 09:42

Note, that das.sanjib attempts to use the halfduplex mode.

In the last iteration not so much..

[Tesla DeLorean]

Posted on April 08, 2014 at 09:46

sorry clive the data is not sending too . I have checked witg the help of hyper terminal(docklight) connected with the PC .. It is not sending  in the hyperterminal

What about looking at the signals with a SCOPE, your project involves signal analysis, you've got to have a SCOPE, USE IT!!! If USART still doesn't seem to work go back to first principles, I've posted a bunch of USART example code.