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New! LPC3250 DMA Interrupt Help eswar g
Hi
I'm facing problum while configuration for GPDMA. I was unable to generate interrupt on DMA. here I'm listing 1.I configured DMA Channel 0 for UART2 for 4 bytes trigger. But unable to get.
2.What that channel linked list register will do?
I have studied the data sheet. But unable to get these things.
Please help me
Here i'm attaching the GPDMA configuration what i did.
GPDMA_SOFT_BREQ |=0x00000100; // HSUART 2 TX Selected GPDMA_CH0_SRC =HSU2_RX; // Selecting Source address GPDMA_CH0_DEST =(unsigned long)&Rx_Buffer_485[0]; GPDMA_CH0_LLI =0x00000000; GPDMA_CH0_CTRL = 0x88009001; // Terminal count interrupt and //transfer size 4byts(8bits wide) GPDMA_CH0_CFG |=0x00001008; // Peripheral to memory trnasaction GPDMA_CONFIG |=0x00000001; // Enable DMA Controller
Thanks Eswar