Forum : ST7/STM8
Original Post
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September 21, 2010 - 10:18am
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Hi, In critical functions instead of using "disableInterrupts()" and then "enableInterrupts()" functions, some compilers offer functions like "get_interrupt_state()" and "set_interrupt_state()". Does the Raisonance STM8 compiler have some functions like these? Thanks&Regards |
Hi Volkan,
Yes, you can get the current STM8 interrupt state through the intrinsic functions, as in the following example shows:
You can freely manipulate the contents of the CC registers once you retrieve it through the _getCC_ intrinsic function.
Note that the printf/putchar functions are reentrant, interruptible and can be used even if the interrupts are disabled, as putchar() is using a polling mechanism that does not require any interrupt.
Regards,