Hello,

I want to synchronize system time of micro controller connected on RS485 line

I want to use IRIG-B for time code which is generated from GPS module.

so far from my study I can transmit IRIG-B over RS485.

Has anyone worked on IRIG-B implementation ?

After I receive the IRIG-B pulse I am not sure how set read and set the system time of UC.

 

A typical microcontroller will only have a 'system time' if you implement one. If you implement one, then you will have a pretty good idea how to set it. If you don't implement one then you will have no need to set it. Am I missing something here?

 

Hello,

I want to synchronize system time of micro controller connected on RS485 line

I want to use IRIG-B for time code which is generated from GPS module.

so far from my study I can transmit IRIG-B over RS485.

Has anyone worked on IRIG-B implementation ?

After I receive the IRIG-B pulse I am not sure how set read and set the system time of UC.

Hi,
A normal GPS with nmea will produce the time/date in a simple format but could produce a delay of 1 nmea frame. (1 sec approx. )
The irig-b: here are the spec's http://irigb.com/pdf/wp-irig-200-04.pdf will produce some programming work especially related to timing and task priority.
Picbuster

 

Hi,
A normal GPS with nmea will produce the time/date in a simple format but could produce a delay of 1 nmea frame. (1 sec approx. )
The irig-b: here are the spec's http://irigb.com/pdf/wp-irig-200-04.pdf will produce some programming work especially related to timing and task priority.
Picbuster

Knowing about IRIG-B is not the problem. The problem centers around the notion that any garden variety processor even has a "system time". To my point, it only has one if you implement one, or get one in some firmware library. If you get one from a library, the problem shifts from implementation to understanding. The TS needs to express his requirements with a great deal more clarity and precision.

 

You are correct (we can not compute need more clarity etc.)
Picbuster

 

Hi,

I am required to make a circuit using microcontroller for IRIGB implementation to sync devices. I am searching a lot but things are not getting clear. Is there any basic implementation example or code for microcontroller etc which clearly explains on basic level how IRIGB is implemented and used? I am searching and searching and there is just repeat of information regarding what is IRIG Time code but couldn't find any basic way and example for basic implementation which could clear the concepts. Help required. Thanks in advance