F030 USART half dupliex

sanjib · ‎2014-05-09

Posted on May 09, 2014 at 14:40

The original post was too long to process during our migration. Please click on the attachment to read the original post.

Tesla DeLorean · ‎2014-05-19

Posted on May 19, 2014 at 16:20

Please help me

Sorry, but the level of help you require exceeds what I'm offering.

I can't be prototyping hardware, and recoding solutions.

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sanjib · ‎2014-05-19

Posted on May 19, 2014 at 16:33

I am not asking the full code to write , I am just asking what wrong in configurationhere I am checking with th e terminal it is not receiving any thing please check what is the wrong.

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Attachments :

Check_for_the_BOARD2.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006Hzzf&d=%2Fa%2F0X0000000bSC%2FTxbw5LNl4eT8Gjil2Yd3sqd0k_3jOCQjh93wHSkjIfI&asPdf=false

Tesla DeLorean · ‎2014-05-19

Posted on May 19, 2014 at 18:12

You still have the Rx disabled per my earlier observation.

You still have code in the interrupt looking for a TXE flag without qualifying if the device is in Tx mode rather than Rx. The status may still be flagged, but will not assert a physical interrupt when masked.

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sanjib · ‎2014-05-19

Posted on May 20, 2014 at 07:19

But it is disable in the first start up function ......after transmitting the data I am making rx enable as well as Rxne interrupt, then it shud be in way ryt or how it is?

sanjib · ‎2014-05-20

Posted on May 20, 2014 at 10:50

may be this is the problem

HDSEL: Half-duplex selection

Selection of Single-wire Half-duplex mode

0: Half duplex mode is not selected

1: Half duplex mode is selected

This bit can only be written when the USART is disabled (UE=0).

I have made USART1 disable but now transmit alsoo not happening ...what do you think?

sanjib · ‎2014-05-20

Posted on May 20, 2014 at 12:03

Data was not getting received because This Halfduplex (HDSEL) can only be written when the USART is disabled (UE=0) before I

* was not doing that I was Enabling the UART then selecting the HDSEL bit that was wrong.

sanjib · ‎2014-05-20

Posted on May 20, 2014 at 12:16

This problem is solved but now the problem is if I am sending data like SANJIB it is only receiving J instead of S for the first time how to solve this