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K22  eDMA bus error

Question asked by heng wu on Jan 12, 2017
Latest reply on Jan 18, 2017 by heng wu

when i  use eDMA ,I always found the source bus error in bit SBE of DMA_ES register.
My chip is K22FX512VLL12.

I define a array like this:uint32_t wdata1[4]={0x12345678,0x87654321,0x12345678,0x87654321};

Then DMA0->TCD[0].SADDR = (uint32_t)wdata1;

Another case happens again.

I define RAM_ADDRESS=0x20000000;

Then Then DMA0->TCD[0].SADDR =RAM_ADDRESS;

The same source bus error occurs.

I confused heavily.

Anything wrong? Help me with this problem,please.

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