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STM8: Add not regarding interrupt nesting.

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Kelvin Lawson
2010-03-28 23:13:19 +01:00
parent 66371637a4
commit 2665306173
1 changed files with 4 additions and 0 deletions
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ports/stm8/README
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@@ -420,6 +420,10 @@ during the ISR causes a context switch to a new thread, then the ISR's
data will remain on the thread's stack until the thread is scheduled back
in.
Interrupt priorities (via the ITC_SPRx registers) are left in their
default power-on state, which disables interrupt nesting. Kernel changes
may be required to support interrupt nesting.
Note that the STM8 programming manual currently describes the following
feature: