70 lines
1.8 KiB
Plaintext
70 lines
1.8 KiB
Plaintext
Overview
|
|
========
|
|
The fsl_romapi example shows how to use ROM API:
|
|
|
|
In this example, fsl_romapi driver will call the API and operate the external Nor flash connected to
|
|
the FLEXSPI controller. Some simple flash command will be executed, such as FLEXSPI NOR get config, FLEXSPI NOR Flash init,
|
|
Erase sector, Program page.
|
|
Example will first erase the sector and program a page into the flash, at last check if the data in flash is correct.
|
|
|
|
|
|
Toolchain supported
|
|
===================
|
|
- IAR embedded Workbench 9.30.1
|
|
- Keil MDK 5.37
|
|
- GCC ARM Embedded 10.3.1
|
|
- MCUXpresso 11.6.0
|
|
|
|
Hardware requirements
|
|
=====================
|
|
- Mini/micro USB cable
|
|
- EVK-MIMXRT1020 board
|
|
- Personal Computer
|
|
|
|
Board settings
|
|
==============
|
|
|
|
Prepare the Demo
|
|
================
|
|
1. Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
|
|
2. Open a serial terminal with the following settings:
|
|
- 115200 baud rate
|
|
- 8 data bits
|
|
- No parity
|
|
- One stop bit
|
|
- No flow control
|
|
3. Download the program to the target board.
|
|
4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
|
|
|
|
Running the demo
|
|
================
|
|
When the example runs successfully, you can see the similar information from the terminal as below.
|
|
|
|
For FLEXSPI NOR targets, the result is:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
FLEXSPI NOR example started!
|
|
|
|
Successfully init FLEXSPI serial NOR flash
|
|
|
|
serial flash has been found successfully
|
|
|
|
Vendor ID: xx
|
|
|
|
Serial NOR flash Information:
|
|
|
|
Total program flash size: xx KB, Hex: (xx)
|
|
|
|
Program flash sector size: xx KB, Hex: (xx)
|
|
|
|
Program flash page size: xx B, Hex: (xx)
|
|
|
|
Erasing serial NOR flash over FLEXSPI
|
|
|
|
Successfully erased one sector of NOR flash device xx -> xx
|
|
|
|
Program a buffer to a page of NOR flash
|
|
|
|
Successfully programmed and verified location FLEXSPI memory xx -> xx
|
|
|
|
End of FLEXSPI NOR Example!
|