DMA Demo
Overview
After starting this application, perform the following actions:
Initialize DMA
Start the thread and perform m2m DMA related operations within the thread, including interrupt normal mode, loop mode, and non interrupt blocking mode
The thread will continue to execute in a loop
Environmental Requirements
The DMA configuration has been completed in the device tree. If you need to make any changes, you can modify the corresponding device tree settings.
Building and Flashing
Example Location： examples/peripheral/dma
For operations such as compiling and burning, please refer to: Quick Start Guide
Running Result
The following log is displayed after successful operation
[I] (48) DMA DRV M2M DEMO: ------start dma example: dma demo, dma interrupt without list mode ------
[I] (70) DMA DRV M2M DEMO: src 0x200015a0
[I] (70) DMA DRV M2M DEMO: dest 0x20001470
[I] (70) DMA DRV M2M DEMO: len 96
[I] (70) DMA DRV M2M DEMO: ch 0
[I] (70) DMA DRV M2M DEMO: src_inc_mode 1
[I] (92) DMA DRV M2M DEMO: dest_inc_mode 1
[I] (92) DMA DRV M2M DEMO: int_en 1
[I] (92) DMA DRV M2M DEMO: auto_reload 0
[I] (92) DMA DRV M2M DEMO: dma_mode 0
[I] (92) DMA DRV M2M DEMO: src_warp_len 0
[I] (92) DMA DRV M2M DEMO: dest_warp_len 0
[I] (214) DMA DRV M2M DEMO: dump [[after dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (216) DMA DRV M2M DEMO: dump [[after dma]dma_m2m dest buf:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (241) DMA DRV M2M DEMO: dump [[before dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (285) DMA DRV M2M DEMO: dump [[before dma]dma_m2m dest buf:]
0x0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x000f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x001e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x002d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x003c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x004b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x005a 00 00 00 00 00 00 ......
[I] (329) DMA DRV M2M DEMO: ------start dma example: dma demo, dma polling without list mode ------
[I] (351) DMA DRV M2M DEMO: dump [[after dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (397) DMA DRV M2M DEMO: dump [[after dma]dma_m2m dest buf:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (441) DMA DRV M2M DEMO: dma m2m xfer demo finish with success
[I] (441) DMA DRV M2M DEMO: dump [[before dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a ee ee ee ee ee ee :::::::::......
0x001e ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x002d ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x003c ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x004b ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x005a ee ee ee ee ee ee ......
[I] (486) DMA DRV M2M DEMO: dump [[before dma]dma_m2m dest buf:]
0x0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x000f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x001e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x002d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x003c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x004b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x005a 00 00 00 00 00 00 ......
[I] (553) DMA DRV M2M DEMO: dump [[before dma]dma_m2m dest buf ref:]
0x0000 ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x000f ee ee ee ee ee ee ee ee ee 00 00 00 00 00 00 ...............
0x001e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x002d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x003c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x004b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x005a 00 00 00 00 00 00 ......
[I] (598) DMA DRV M2M DEMO: ------start dma example: dma demo, dma interrupt with warp mode ------
[I] (698) DMA DRV M2M DEMO: dump [[after dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a ee ee ee ee ee ee :::::::::......
0x001e ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x002d ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x003c ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x004b ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x005a ee ee ee ee ee ee ......
[I] (700) DMA DRV M2M DEMO: dump [[after dma]dma_m2m dest buf:]
0x0000 ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ...............
0x000f ee ee ee ee ee ee ee ee ee 00 00 00 00 00 00 ...............
0x001e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x002d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x003c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x004b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x005a 00 00 00 00 00 00 ......
[I] (725) DMA DRV M2M DEMO: dump [[before dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (769) DMA DRV M2M DEMO: dump [[before dma]dma_m2m dest buf:]
0x0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x000f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x001e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x002d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x003c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x004b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
0x005a 00 00 00 00 00 00 ......
[I] (813) DMA DRV M2M DEMO: ------start dma example: dma demo, dma interrupt without list mode transfer api------
[I] (935) DMA DRV M2M DEMO: dump [[after dma]dma_m2m src data:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (937) DMA DRV M2M DEMO: dump [[after dma]dma_m2m dest buf:]
0x0000 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x000f 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x001e 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x002d 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x003c 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x004b 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a 3a :::::::::::::::
0x005a 3a 3a 3a 3a 3a 3a ::::::
[I] (962) DMA DRV M2M DEMO: dma demo done! count 0