Step 5 : Flash and Boot the OS

Flash and Boot the OS

• In this program, you are going to learn

• How to ?

Topics in this section,

• Flash and Boot

Flash and Boot

• Open one normal linux terminal and run minicom once you plug in the board.

$ sudo minicom -D /dev/ttyACM0

• You should see the following output

Welcome to minicom 2.8

OPTIONS: I18n
Port /dev/ttyACM0, 08:59:31

Press CTRL-A Z for help on special keys

*** Booting Zephyr OS build zephyr-v3.5.0-4169-ga897005b989a ***
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON
LED state: OFF
LED state: ON

• Flash using west flash: using runner stm32cubeprogrammer

• Now run west flash in the venv terminal

$ west flash
-- west flash: rebuilding
[1/1] cd /home/test/zephyrproject/zephyr/build/zephyr && /home/test/zephyrproject/.venv/bin/python3 /h...ripts/build/check_init_priorities.py --elf-file=/home/test/zephyrproject/zephyr/build/zephyr/zephyr.elf
-- west flash: using runner stm32cubeprogrammer
-- runners.stm32cubeprogrammer: mass erase requested
      -------------------------------------------------------------------
                        STM32CubeProgrammer v2.15.0
      -------------------------------------------------------------------

ST-LINK SN  : 003700263232510239353236
ST-LINK FW  : V3J12M3
Board       : B-U585I-IOT02A
Voltage     : 3.29V
SWD freq    : 8000 KHz
Connect mode: Under Reset
Reset mode  : Hardware reset
Device ID   : 0x482
Revision ID : Rev X
Device name : STM32U575/STM32U585
Flash size  : 2 MBytes
Device type : MCU
Device CPU  : Cortex-M33
BL Version  : --
Debug in Low Power mode enabled


Mass erase ...

Mass erase successfully achieved
      -------------------------------------------------------------------
                        STM32CubeProgrammer v2.15.0
      -------------------------------------------------------------------

ST-LINK SN  : 003700263232510239353236
ST-LINK FW  : V3J12M3
Board       : B-U585I-IOT02A
Voltage     : 3.29V
SWD freq    : 8000 KHz
Connect mode: Under Reset
Reset mode  : Hardware reset
Device ID   : 0x482
Revision ID : Rev X
Device name : STM32U575/STM32U585
Flash size  : 2 MBytes
Device type : MCU
Device CPU  : Cortex-M33
BL Version  : --
Debug in Low Power mode enabled

      -------------------------------------------------------------------
        Choose flashing speed for Cortex M33 series.(default speed=Reliable)
      -------------------------------------------------------------------



Memory Programming ...
Opening and parsing file: zephyr.hex
  File          : zephyr.hex
  Size          : 15.77 KB
  Address       : 0x08000000


Erasing memory corresponding to segment 0:
Erasing internal memory sectors [0 1]
Download in Progress:
[==================================================] 100%

File download complete
Time elapsed during download operation: 00:00:00.789

RUNNING Program ...
  Address:      : 0x8000000
Application is running, Please Hold on...
Start operation achieved successfully