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LP-AM243: any demo could test the DDR on LP-Am243?
The LP_AM243x (ALX) does not support DDR. The AM243x (ALV) is the one which supports the DDR.
For AM243x (ALV), you can either use the SBL_NULL or CCS target configuration to initialize the SoC and board using associated GEL file on AM243x EVM. The DDR initialization is included. Of course, you will have to write your own DDR test program. The DDR starting address is at 0x80000000.
Hello,MingWei ! Can you provide a DDR read-write Test Project? We are not familiar with DDR, on the AM243 series, I hope you can provide DDR-related software information . Thanks！
Can we achieve the function of GPMC receiving data directly stored in DDR through DMA, and Ethernet sending data can be directly transported from DDR to Ethernet through DMA? If we want to implement the function of GPMC storing received data to DDR and Ethernet sending data from DDR, what is recommended? Can you provide an application 。
Once the DDR is set properly, it can be accessed by either CPU or the DMA like regular memory.
Since the GPMC driver is not currently supported in MCU+ SDK, so there is no example for GPMC receiving data dump using DMA.
For ethernet example, you can start with the any of the ethernet example, add the DDR sending dump to the example whenever the ethernet data is send out (hopefully it is using DMA). You can accomplish it by mimic the ethernet sending operation, the only difference is the DMA destination address.
