Hi
I want to start my i.MX RT1050 firmware using dedicated PC application using serial downloader and USB cable. I allready made such an application using QT framework and it works very well. The problem is I want to use external SDRAM memory.
I successfully run example from NXP SDK choosing Import SDK example -> demo_apps -> hello_world then checking "link application to RAM" and its done
Linker tells that program lended in SDRAM
Memory region Used Size Region Size %age Used
BOARD_FLASH: 0 GB 64 MB 0.00%
BOARD_SDRAM: 24260 B 30 MB 0.08%
NCACHE_REGION: 0 GB 2 MB 0.00%
SRAM_DTC: 0 GB 128 KB 0.00%
SRAM_ITC: 0 GB 128 KB 0.00%
SRAM_OC: 0 GB 256 KB 0.00%
Finished building target: evkbimxrt1050a_hello_world.axf
JLink server confirms that the data went to SDRAM memory
Downloading 15812 bytes @ address 0x80000000 - Verified OK
Program run and works, debuging also works.
But it stops working when I turn off JLinkScript from debug menu (path ${SDK_SCRIPTS}/evkbimxrt1050_sdram_init.jlinkscript)
I want to use serial downloader every time my firmware starts and I would like to move SDRAM initialization to DCD section so I dont need JLinkScripts but I failed to. Is there any shortcut? An working example of this kind of configuration? I failed to find such in SDK examples. I find configuring this kind of setup difficult since depending on what I start with I have to modify DCD section or linker script and potential failures are hard to debug and fix.
