My current development environment is MCUXPRESSO IDE, using the i.MX RT1050. I understand that because the i.MX RT1050 doesn't have internal flash, an algorithm needs to be downloaded when using external flash. However, this downloaded algorithm is dependent on the chosen flash memory. Does the official documentation explain how to obtain the desired downloaded algorithm for quick and easy use?
Hi SDFDSFSF,
We suggest you do it in the following order:
1. Select an external Flash download algorithm in the project properties. NXP provides some mainstream Flash download algorithms.
You can right-click the project -> Properties -> MCU settings -> Memory details and select the NXP-supported flash driver:
The flash driver for MCUXpresso is usually located under nxp\LinkServer_xx.x.xx\binaries\Flash, with the .cfx extension.
2. If the selected Flash memory supports SFDP, try the SFDP driver first.
In MCUXpresso, you can choose a driver like MIMXRT1050_SFDP_QSPI.cfx. The significance of this type of SFDP driver is that it reduces the dependence on specific part number-specific algorithms through flash self-describing parameters.
3. Create your own using a template.
Please refer to the application manual : https://www.nxp.com/docs/en/application-note/AN13386.pdfGenerate a custom CFX file. When modifying it, key parameters should be derived from test results of the external flash datasheet and the flexspi_nor_polling demo in the SDK.
In addition to the download algorithm, XIP/Boot Header configuration is also required. Please refer to Solved: Flash interface initialization - NXP Community.
The above are the basic methods. You can provide more specific details, such as what model of Flash you are using, what specific difficulties you are encountering at this stage, and this will help you better.
Best Regards,
Shelly Zhang