topic Re: Trouble with creating bootable image for RT1064 under Keil uVision in i.MX RT Crossover MCUs

Trouble with creating bootable image for RT1064 under Keil uVision

Micha2 — Thu, 16 Mar 2023 09:00:54 GMT

Hello everyone,

currently, I’m trying to build an image from the emwin_gui_demo sample program, which I can transfer with the Flashloader.
As development board I use the MIMXRT1064-EVK and as IDE Keil µVision under Window 10. The program code is in the flash memory at address
0x70000000 and the variables are in the external SD-RAM (0x80000000).

When I load the code with Keil uVision enviromnent, everything works fine. After Power On cycle the code still executes successfully.

Then I try to build a boot image, there are problems, the image does not run.

Here are my steps:

I set the following defines in uVision (C/C++ in Options for Target):
XIP_BOOT_HEADER_ENABLE=0, XIP_BOOT_HEADER_DCD_ENABLE=0
Then I remove in Linker Misc controls (Linker in Options for Target) subsequent linker instructions:
--keep=*(.boot_hdr.dcd_data) --predefine="-DXIP_BOOT_HEADER_ENABLE=1"
I generated by uVision the emwin_gui_demo.hex and further with srec_cat.exe the emwin_gui_demo.srec
srec_cat.exe #H -Intel -o $H@P.srec -Motorola
Creating binary file with elftosb und emwin_gui_demo.srec:
elftosb.exe -f imx -V -c imx-flexspinor-normal-unsigned.bd -o ivt_flexspi_nor_graph.bin emwin_gui_demo.srec
response:
Section: 0x0
iMX bootable image generated successfully
imx-flexspinor-normal-unsigned.bd:
options {
flags = 0x00;
startAddress = 0x70000000;
ivtOffset = 0x1000;
initialLoadSize = 0x2000;
DCDFilePath = "dcd.bin";
# Note: This is required if the default entrypoint is not the Reset_Handler
# Please set the entryPointAddress to the base address of vector table
//entryPointAddress = 0x70002000;
}
sources {
elfFile = extern(0);
}
section (0)
{
}
Creating Boot Image boot_image.sb:
elftosb.exe -f kinetis -V -c program_flexspinor_image_qspinor.bd -o boot_image.sb ivt_flexspi_nor_graph_nopadding.bin
Then I switch the Board to serial download mode and start the flashloader.
Then programming SB file via USB connection:
blhost.exe -u -- receive-sb-file boot_image.sb

response:
Response status = 0 (0x0) Success.
Wrote 212368 of 212368 bytes.

After power on the image is not executable.

Then I used MCUXpresso IDE and build the example program emwin_gui_demo from the SDK package.
I generated the emwin_gui_demo.s19 code and renamed it to emwin_gui_demo.srec.
Then I used the same steps 4 to 7.
The code still executes successfully.

Why does Keil's srec code not work?

Can anybody help me figure out what the problem is? Many thanks in advance.

Regards,

Micha

Re: Trouble with creating bootable image for RT1064 under Keil uVision

Miguel04 — Tue, 21 Mar 2023 21:36:48 GMT

Hi @Micha2

Please look this link. This post says that first you must configure the flash in order to read anything else.

However, you could try to use Secure Provisioning tool or MCUBootUtility.

You can find this steps on the documentation.

Keil MDK 5
1. In the toolbar, select iled_blinky flexspi_nor_debug target.
2. In Project > Options > "*C/C++*", disable define symbol
XIP_BOOT_HEADER_ENABLE=0 (set to 0).
3. In Project > Options > Linker, remove all --keep options and the predefined symbol XIP_BOOT_HEADER_ENABLE. As a result, Misc. controls contains only --remove.
4. Build the image.

Since it works on MCUxpresso IDE, I recommend you to use it instead of Keil.

Let me know if this helps you.

Best Regards, Miguel.

Re: Trouble with creating bootable image for RT1064 under Keil uVision

Micha2 — Wed, 22 Mar 2023 10:31:53 GMT

Hi Miguel04,

The background of the problem is that we have developed our own board with a MIMXRT105S processor.
The firmware for this board has been developed under Keil µVision and uses the emWin library.
Everything works fine in the Keil development environment, but when we create an image and flash it to the processor, it will not boot.

Therefore, a MIMXRT1064-EVK with the sample program emwin_gui_demo was used for troubleshooting.
The same problem occurred here, boot images generated by Keil uVision cannot be executed.

Using MCUxpresso IDE is not an alternative for us.

Your recommendation of setting "XIP_BOOT_HEADER_ENABLE=0" and removing all "--keep options" has already been taken into account.

Best Regards, Micha.