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Altera_Forum's avatar
Altera_Forum
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15 years ago

DMA Issue ,please help me,PLEASE

I have a program about DMA , The functions is send data from RS232 to SDRAM, SDRAM can receive data ,but when i check this data whther rightly, find the data that it's not send from uart . the probl...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi micio82

deep thanks. Did you write program about DMA ,send data from uart to SDRAM,(in my another code,sdram to uart ,it works well(didn't bypass cache),but from uart to sdram not work at all)

I select cpu is CPU/F ,Must it bypass the cache ? to selsect none?