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Signaling from ISR

For issues specific to TI's MSP430 line of ultra-low-power microcontrollers, including compilers (e.g. Quadravox AQ430), IDEs (e.g. IAR Embedded Workbench) and development tools (e.g. TI MSP-FET430 Flash Emulation Tool).

Signaling from ISR

Postby Eduardo Robles » Sat Jul 17, 2004 4:52 am


I am implementing a serial communication mechanism using circular buffers, and I need to signal a semaphore from the RX ISR.

I wonder if it is necessary with the MSP430 to care about disabling/enabling the interrupts for every OSSignalSem(...) in the mainline code? (I guess I was too used to Salvo for the PICs).

Any hints on that?


Eduardo Robles
Posts: 14
Joined: Mon Jun 18, 2001 11:00 pm
Location: Sao Paulo, SP, Brazil

Re: Signaling from ISR

Postby aek » Sun Jul 18, 2004 9:10 am

Hi Eduardo.

No, there's no need to worry about that -- it's only the case for compilers/targets that can't/don't push function parameters onto the stack, etc. like PICC & PICC-18.


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Joined: Sat Aug 26, 2000 11:00 pm

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