Hi,I have STM32F4 interfaced with the external SRAM sized 512kx16 array. Now what I believe is (Pls correct me if i am wrong), Pointing to Every incremental Address should give me 16bit data. because SRAM is interfaced with 16bit wide data bus (non multiplexed)
For Example: 0x64000000 is the base address of my external SRAM. And I want to write hello, to this RAM, then It should happen like... on 0x64000000 location, data should be written, 'H' 'E' & on 0x64000001 location, data should be written, 'L' 'L' & on 0x64000002 location, data should be written, 'O' 0xff . And the same is should be getting in read back.
But What actually occurs is on 0x64000000 location, data should be written, 'H' 'E' & on 0x64000001 location, data should be written, 'E' 'L' & on 0x64000002 location, data should be written, 'L' 'L' & on 0x64000003 location, data should be written, 'L' 'O' & on 0x64000004 location, data should be written, 'O' 0xff . So If I want to get the write data, I will have to read back 16 bit data from location 0x64000000, 0x64000002, and 0x64000004.
Can Anyone Has the experience of interfacing 512kx16bit array SRAM ? and facing the similar issues ??
You configure the FMC to make this work properly. The FMC can be configured to access 8-bit memory, 16-bit memory and 32-bit memory. This is the key to your questions.