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.. | ||
armgcc | ||
board.c | ||
board.h | ||
clock_config.c | ||
clock_config.h | ||
dcd.c | ||
dcd.h | ||
evkmimxrt1020_sdram_init.jlinkscript | ||
flexram_ram_allocate_v3_14.xml | ||
flexram.c | ||
pin_mux.c | ||
pin_mux.h | ||
readme.md |
Overview
The FLEXRAM project is a simple demonstration program of the SDK FLEXRAM driver. It allocate the on-chip ram and then access the OCRAM to demo access error interrupt.
SDK version
- Version: 2.15.000
Toolchain supported
- IAR embedded Workbench 9.40.1
- Keil MDK 5.38.1
- GCC ARM Embedded 12.2
- MCUXpresso 11.8.0
Hardware requirements
- Mini/micro USB cable
- EVK-MIMXRT1020 board
- Personal Computer
Board settings
This example project does not call for any special hardware configurations. Although not required, the recommendation is to leave the development board's jumper settings and configurations in default state when running this example.
Prepare the Demo
- Connect a USB cable between the PC host and the OpenSDA USB port on the board.
- Open a serial terminal with these settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
- Download the program to the target board.
- Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the demo runs successfully, the log would be seen on the terminal like:
FLEXRAM ram allocate example.
Allocate on-chip ram:
OCRAM bank numbers 2
DTCM bank numbers 2
ITCM bank numbers 4
Allocate on-chip ram success
OCRAM access to 0x20210000 boundary.
DTCM access to nearly 0x20010000 boundary.
ITCM access to nearly 0x20000 boundary.
FLEXRAM ram allocate example finish.
Note: To debug in qspiflash, following steps are needed:
- Select the flash target and compile.
- Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
- Start debugging in IDE.
- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.