#include?
#include?
#include?“system.h“
#include?“sys/alt_dma.h“

int?main（void）
{
????alt_dma_rxchan?rx;
????//創(chuàng)建DMA接收信道
????rx?=?alt_dma_rxchan_open（“/dev/dma_0“）;
????//當(dāng)信道創(chuàng)建成功
????if（rx?!=?NULL）
????{
????????printf（“Dma?transition?start.“）;
????????while（1）
????????{
????????????//設(shè)置DMA傳輸?shù)臄?shù)據(jù)位寬?本例中為8位
????????????alt_dma_rxchan_ioctl（rxALT_DMA_SET_MODE_8NULL）;
????????????//指定從uart接收數(shù)據(jù)
????????????alt_dma_rxchan_ioctl（rxALT_DMA_RX_ONLY_ON（void*）UART_0_base）;
????????????
????????????//提交DMA接收請求?指定接收數(shù)據(jù)的位置（sdram）以及傳輸數(shù)據(jù)量
????????????if（alt_dma_rxchan_prepare（rx?
???????????????????????????????????????SDRAM_0_base?
???????????????????????????????????????1024?
???????????????????????????????????????NULL?
???????????????????????????????????????NULL）?????????????{
????????????????printf?（“Error:?failed?to?post?receive?request\n“）;
????????????}
????????????//關(guān)閉DMA接收信道
????????????alt_dma_rxchan_close（rx）;
????????????usleep（1000000）;
????????}
????}
????return?0;
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????1493500??2008-09-17?10:38??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.cmp.tdb

?????文件????2659436??2008-09-17?10:38??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.cmp0.ddb

?????文件?????125038??2008-09-17?10:38??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.cmp2.ddb

?????文件??????????0??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.dbp

?????文件????????136??2008-09-17?10:05??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.db_info

?????文件????????160??2008-09-17?16:25??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.eco.cdb

?????文件?????367585??2008-09-17?10:38??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.fit.qmsg

?????文件?????972740??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.hier_info

?????文件?????169897??2008-09-17?10:34??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.hif

?????文件?????343427??2008-09-17?10:35??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.map.cdb

?????文件?????217729??2008-09-17?10:35??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.map.hdb

?????文件????????406??2008-09-17?10:34??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.map.logdb

?????文件?????390130??2008-09-17?10:35??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.map.qmsg

?????文件?????704983??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.pre_map.cdb

?????文件?????321762??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.pre_map.hdb

?????文件??????????0??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.psp

?????文件??????????0??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.pss

?????文件?????318648??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.rtlv.hdb

?????文件?????572452??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.rtlv_sg.cdb

?????文件??????70253??2008-09-17?10:33??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.rtlv_sg_swap.cdb

?????文件?????342027??2008-09-17?10:34??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.sgdiff.cdb

?????文件?????348946??2008-09-17?10:34??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.sgdiff.hdb

?????文件????????607??2008-09-17?10:38??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.signalprobe.cdb

?????文件????????153??2008-09-17?16:24??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.sld_design_entry.sci

?????文件???????2229??2008-09-17?10:34??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.sld_design_entry_dsc.sci

?????文件???????1772??2008-09-17?10:34??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.smp_dump.txt

?????文件??????????0??2008-09-17?10:35??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.syn_hier_info

?????文件?????120365??2008-09-17?10:38??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\db\UART_DMA.tan.qmsg

?????文件??????30437??2008-09-17?10:58??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\dma_0.v

?????文件??????22528??2008-09-17?10:57??光盤文件\實(shí)例2??DMA_UART-SDRAM\UART_DMA\jtag_uart_0.v

............此處省略570個(gè)文件信息