How create ExtFlashSection bin file only with Simulator project?

MM..1 · ‎2022-02-06

We require on one file all images used in gui and address map file for locate images.

Is this possible with simulator TouchGFX project?

Romain DIELEMAN · ‎2022-02-08

Hello MM,

Here is what I have been answered by a colleague 😅:

"You can modify the Makefile used by the simulator to produce a binary file with all the images.

It is already done in some of the gcc Makefiles used by the TBS.

Here is a cut from a STM32F746 Makefile:

echo "Producing additional output formats..."

echo " target.hex - Combined internal+external hex"

$(objcopy) -O ihex $@ $(@D)/target.hex

echo " intflash.elf - Internal flash, elf debug"

$(objcopy) --remove-section=ExtFlashSection $@ $(@D)/intflash.elf 2>/dev/null

echo " intflash.hex - Internal flash, hex"

$(objcopy) -O ihex --remove-section=ExtFlashSection $@ $(@D)/intflash.hex

# re-enable if extflash binaries are required in your workflow

echo " extflash.bin - External flash, binary"

$(objcopy) -O binary --only-section=*FlashSection $@ $(@D)/extflash.bin

The last line creates a bin files with all data from the *FlashSections. Here they probably want just the ExtFlashSection.

All images looks like this:

LOCATION_PRAGMA("ExtFlashSection")

KEEP extern const unsigned char image_img1[] LOCATION_ATTRIBUTE("ExtFlashSection") = { // 10x4 RGB888 pixels.

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

This puts the image data in ExtFlashSection. "

Hope this helps,

/Romain

MM..1 · ‎2022-02-09

Hello Romain,

Maybe im noob in edit makefile, but when I place in simulator makefile ...

all: $(filter assets,$(MAKECMDGOALS))

echo " extflash.bin - External flash, binary"

$(objcopy) -O ihex --only-section=*FlashSection $@ $(@D)/extflash.hex

all assets: $(filter clean,$(MAKECMDGOALS))

I get error

Run Simulator

Generate

Done

Generate Assets

make -f simulator/gcc/Makefile assets -j8

simulator/gcc/Makefile:31: *** missing separator. Stop.

Failed

EDIT1:

I test in command line and too generated makefile and it dont get error, but hex file is empty. Seems simulator exe dont handle sections and in simulator build i dont see file for objcopy.