• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 79 subscribers
  • Views 605 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

MSP430g2553 for RS485 transmission problem

vivek bhageria
Prodigy 50 points 
Hi all,

m working on the device MSP430g2553 for rs485 serial communication.
and using baud rate 9600.
m able to recieve a character but transmission is not possiple frm
MSP  side. Also while single stepping the application, the reception and 
transmission is working fine.....

cud anybody guide wht cud be the prblem.......
any help wud be appreciable.
Thanks and regards.....

Vivek.
  • 0
    Guru 58965 points

    Based on your description, there could exit a mistake in hardware, software, or concept.

  • 0
    Guru 227245 points

    vivek bhageria said:
    m able to recieve a character but transmission is not possiple frm MSP side. Also while single stepping the application, the reception and transmission is working fine.....

    Do you receive nothing at all or just the first character?
    You say 'whiel single stepping,[...]transmission is fine". So proably you just stuff the outgoing data into TXBUF whether the previous has been sent or not. So at the end, only the first and last character is transmitted and th eonex in between are lost. When single-stepping, this takes long enough so that the previous byte has been sent before you ecxecute the code that stuffs the next one into TXBUF.

    However, an a little more detailed problem description and perhaps your code would be required for furhter analysis.

**Attention** This is a public forum