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Demote LDMA interrupt priority. We assume that completion of a DMA transfer means the transaction is finished already, and its handling is thus less time-sensitive than being in the middle of an interrupt-driven Serial or SPI transaction.

pull/1501/head
Steven Cooreman 2016-01-08 17:51:01 +01:00
parent 468ddc86bd
commit 48b20be0e6
1 changed files with 2 additions and 2 deletions
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libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c
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@ -83,11 +83,11 @@ void dma_init(void)
ldmaInit.ldmaInitCtrlNumFixed = 0; /* All channels round-robin */ ldmaInit.ldmaInitCtrlNumFixed = 0; /* All channels round-robin */
ldmaInit.ldmaInitCtrlSyncPrsClrEn = 0; /* Do not allow PRS to clear SYNCTRIG */ ldmaInit.ldmaInitCtrlSyncPrsClrEn = 0; /* Do not allow PRS to clear SYNCTRIG */
ldmaInit.ldmaInitCtrlSyncPrsSetEn = 0; /* Do not allow PRS to set SYNCTRIG */ ldmaInit.ldmaInitCtrlSyncPrsSetEn = 0; /* Do not allow PRS to set SYNCTRIG */
ldmaInit.ldmaInitIrqPriority = 1; /* IRQ Priority - FIXME: correct value? */ ldmaInit.ldmaInitIrqPriority = 2; /* IRQ Priority */
LDMA_Init(&ldmaInit); LDMA_Init(&ldmaInit);
#else #else
#error no dma block? #error "Unrecognized DMA peripheral"
#endif #endif
enabled = true; enabled = true;