Burst Sleep Mode in Embedded C: Cooling & Interrupts

[rama1001]

Hi,
I am correcting a Embedded C code which requires Burst sleep mode. This sleep period is purely depend on the user input cool time and this is really to coll the machine. I thought of using Sleep function for this user input time but is it able to respond to other interrupts in this period? or any other idea to make it would be highly appreciated.

Thank you.

 

[rcgldr]

If this is embedded code, then the sleep function and interrupt handling are part of the operating system used for the embedded code. Hopefully there is sufficient documentation for the operating system to determine how it handles this situation.

It is common for embedded multi-tasking operating systems to allow a task to pend (wait) for an event that can be set by another task or an interrupt routine. This basic functionality may be extended so that a task can pend on a message queue (normally fifo), where other tasks and/or interrupts can add messages to a message queue.

 

[rama1001]

If this is embedded code, then the sleep function and interrupt handling are part of the operating system used for the embedded code. Hopefully there is sufficient documentation for the operating system to determine how it handles this situation.

It is common for embedded multi-tasking operating systems to allow a task to pend (wait) for an event that can be set by another task or an interrupt routine. This basic functionality may be extended so that a task can pend on a message queue (normally fifo), where other tasks and/or interrupts can add messages to a message queue.

HI,
i have a doubt about wating time(blank time or cool time or zero current) in my system. The current C code was not working without this blank period. Suppose, i would like to produce current for 1500ms and 600ms as cool time. I can stop the transformer until this 600ms period but how can i wait exactly 600ms or how to write a piece of code to make it work? Please give me any suggestions.

 

[rcgldr]

The current C code was not working without this blank period. Suppose, i would like to produce current for 1500ms and 600ms as cool time. I can stop the transformer until this 600ms period but how can i wait exactly 600ms or how to write a piece of code to make it work? Please give me any suggestions.

If the device has a timer, and the timer is accurate enough, then use the timer. Otherwise, you may need to code a tight loop and calibrate the loop so it's timing can be programmed to very precise delays. This defeats any interrupt handling or multi-tasking since you'd probably need to do this with interrupts disabled to get the precise timing.

 

[LudusRex]

I would suggest using a low power mode such as the Burst sleep mode for cooling purposes in embedded systems. This mode allows the system to enter a low power state while still being able to respond to interrupts. This can be achieved by setting the appropriate interrupt priorities and ensuring that the system wakes up when an interrupt is received.

Another approach could be to use a timer interrupt to periodically check the user input cool time and enter the sleep mode accordingly. This would ensure that the system is not constantly checking for user input, thus saving power.

It is important to carefully consider the trade-offs between power consumption and responsiveness when implementing sleep modes in embedded systems. By carefully designing the code and selecting appropriate sleep modes, the system can effectively cool down while still being able to handle interrupts and other tasks in a timely manner.

Thank you for considering my suggestions and I wish you success in your code correction.