Building for Other Targets

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Building for other targets typically requires additional programs and tools. Additionally, some targets may have a unique build process, meaning the instructions here will not apply to them. Please see the page for the specific target you want to build for before following these instructions, which can be found under the Hardware Documentation section of the Main Page.

Once you have a working compiler:

  1. We want to use the existing SimpleSerial firmware as a base for our project, but we don't want to edit the existing firmware. Instead, we'll make a new project with a copy of this firmware. Copy the directory of the firmware you want to modify in the chipwhisperer/hardware/vicitims/firmware to a new folder. The folder you copy will depend on what tutorial you're doing. Typically, the firmware you want to use is listed above the "Building for ..." drop down menus. The name is arbitrary, but for this example, we'll call it simpleserial-base-lab1 (though depending on what firmware and tutorial you're working off of, you may want to call it something different). You must keep it in the same directory, as it will reference other files within that directory for the build process.
  2. Change the terminal to the newly copied directory. For example:

    cd c:\chipwhisperer\hardware\victims\firmware\simpleserial-base-lab1
    cd chipwhisperer/hardware/victims/firmware/simpleserial-base-lab1
  3. Then, run make to build the system. Make sure you specify which platform you're using as your target. You can see a list of supported targets by typing make PLATFORM=. You'll also need to specify a CRYPTO_TARGET. Most targets and tutorials work with TINYAES128C, so if you're unsure, this is usually a reliable option. For example, for the NXP Kinetis K24F target, run:


    Which should have the following output:

    ...Bunch of lines removed...
    Linking: simpleserial-base-CW308_K24F.elf
    arm-none-eabi-gcc  -I. -O0 -g -DDEBUG -DCPU_MK24FN1M0VLL12 -DFRDM_K64F -DFREEDOM -w -fno-common -ffunction-sections -fdata-sections -ffreestanding -fno-builtin  -mthumb -mapcs -std=gnu99 -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -MMD -MP -static  -gdwarf-2 -DSS_VER=SS_VER_1_1 -DHAL_TYPE=HAL_k24f -DPLATFORM=CW308_K24F -DTINYAES128C -DF_CPU=7372800UL -Os -funsigned-char -funsigned-bitfields -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=objdir/simpleserial-base.o -I.././simpleserial/ -I.././hal -I.././hal/k24f -I.././hal/k24f/CMSIS -I.././hal/k24f/Drivers -I.././crypto/ -I.././crypto/tiny-AES128-C -std=gnu99 -MMD -MP -MF .dep/simpleserial-base-CW308_K24F.elf.d objdir/simpleserial-base.o objdir/simpleserial.o objdir/clock_config.o objdir/fsl_adc16.o objdir/fsl_clock.o objdir/fsl_cmp.o objdir/fsl_cmt.o objdir/fsl_common.o objdir/fsl_crc.o objdir/fsl_dac.o objdir/fsl_dmamux.o objdir/fsl_dspi.o objdir/fsl_dspi_edma.o objdir/fsl_edma.o objdir/fsl_ewm.o objdir/fsl_flash.o objdir/fsl_flexbus.o objdir/fsl_flexcan.o objdir/fsl_ftm.o objdir/fsl_gpio.o objdir/fsl_i2c.o objdir/fsl_i2c_edma.o objdir/fsl_llwu.o objdir/fsl_lptmr.o objdir/fsl_mmcau.o objdir/fsl_pdb.o objdir/fsl_pit.o objdir/fsl_pmc.o objdir/fsl_rcm.o objdir/fsl_rnga.o objdir/fsl_rtc.o objdir/fsl_sai.o objdir/fsl_sai_edma.o objdir/fsl_sdhc.o objdir/fsl_sim.o objdir/fsl_smc.o objdir/fsl_sysmpu.o objdir/fsl_uart.o objdir/fsl_uart_edma.o objdir/fsl_vref.o objdir/fsl_wdog.o objdir/k24f_hal.o objdir/system_MK24F12.o objdir/aes.o objdir/aes-independant.o objdir/startup_MK24F12.o --output simpleserial-base-CW308_K24F.elf -Xlinker --gc-sections -Xlinker -static -Xlinker -z -Xlinker muldefs -T .././hal/k24f/MK24FN1M0xxx12_flash.ld  --specs=nano.specs --specs=nosys.specs -Wl,--start-group -L .././hal/k24f/ -l:lib_mmcau.a -lm -lc -lgcc -lnosys -Wl,--end-group  -Wl,,--cref   -lm
    Creating load file for Flash: simpleserial-base-CW308_K24F.hex
    arm-none-eabi-objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature simpleserial-base-CW308_K24F.elf simpleserial-base-CW308_K24F.hex
    Creating load file for EEPROM: simpleserial-base-CW308_K24F.eep
    arm-none-eabi-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" \
            --change-section-lma .eeprom=0 --no-change-warnings -O ihex simpleserial-base-CW308_K24F.elf simpleserial-base-CW308_K24F.eep || exit 0
    Creating Extended Listing: simpleserial-base-CW308_K24F.lss
    arm-none-eabi-objdump -h -S -z simpleserial-base-CW308_K24F.elf > simpleserial-base-CW308_K24F.lss
    Creating Symbol Table: simpleserial-base-CW308_K24F.sym
    arm-none-eabi-nm -n simpleserial-base-CW308_K24F.elf > simpleserial-base-CW308_K24F.sym
    Size after:
       text    data     bss     dec     hex filename
      11600     120    2388   14108    371c simpleserial-base-CW308_K24F.elf
    + Built for platform k24f Target
  4. Ensure that the "Built for platform ___" matches your target device.