PCI驱动编程实例，通过PCI可实施操作：

2、通过DMA方式往SDRAM写数据的步骤：

(1)　　往OMB1写传输数据次数

(2)　　往OMB2写所要访问的SDRAM地址

(3)　　往FIFO写2

3、通过DMA方式从SDRAM读数据的步骤：

(1)　　往OMB1写传输数据次数

(2)　　往OMB2写所要访问的SDRAM地址

(3)　　往FIFO写3

-PCI-driven programming examples, can be implemented through the PCI operation : 2, DMA SDRAM write data to the steps : (a) to transfer data OMB1 write the number (2) to OMB2 was to be visited SDRAM Address (3) to FIFO write 2 3 through DMA side SDRAM-time data from the steps : (a) to transfer data OMB1 write the number (2) to OMB2 was to be visited SDRAM Address (3) to write FIFO 3