How to Change the Flashloader of JLink
Recently, many EVKs have been borrowed by customers, and today when I wanted to verify some code, I found that I only had the previous RT1050-EVKB. This board is factory defaulted to use HyperFlash, but it was previously reworked by a customer to use QSPI Flash. I took out the board and tested it with the hello world project using IAR and MDK, and encountered no issues; it could be downloaded and debugged normally. However, when using JLink in the MCUxpresso IDE, I faced issues with downloading and debugging. After some exploration, I finally found a solution (thanks to Frank, who had briefly explained the operation method to me before). Now, let’s get to the point:
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Open JLinkControlPanel.html in the JLink installation directory to access the browser interface.
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Currently, JLink is not connected to the board, so it will prompt “Connect tries”.
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Next, we create a new J-Flash project and connect it.
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Then return to the browser, and you will see that it has successfully connected to J-Link. Here, select Flash.
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From the Flash tab, you can see that the default loader is using HyperFlash; change it to QSPI.
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After modification, there will be a red text prompt; just make sure not to reset.
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J-Link is ready; now let’s try simulating in MCUXpresso:
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We can now successfully enter the main function.
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