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makerinchina-iot opened this issue Apr 18, 2025 · 1 comment · Fixed by #89032
Closed

printf not show anything on esp32 #88803

makerinchina-iot opened this issue Apr 18, 2025 · 1 comment · Fixed by #89032
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@sylvioalves
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bug The issue is a bug, or the PR is fixing a bug platform: ESP32 Espressif ESP32 priority: low Low impact/importance bug

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@makerinchina-iot
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Describe the bug

  • What target platform are you using?
    use esp32 board: esp32_devkitc_wrover

  • What have you tried to diagnose or workaround this issue?
    try to use printk function, it show the output

To Reproduce
on zephyr dir:
west build -b esp32_devkitc_wrover/esp32/procpu --sysbuild samples/hello_world
west flash
west esp
west espressif monitor
log shows:

Serial port /dev/ttyACM0
Connecting....
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP32
--- idf_monitor on /dev/ttyACM0 115200 ---
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
ets Jets Jul 29 2019 12:21:46
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3ffe8000,len:7644
ho 0 tail 12 room 4
load:0x40078000,len:4184
ho 0 tail 12 room 4
load:0x400a0000,len:28236
entry 0x400a216c
I (33) soc_init: MCUboot 2nd stage bootloader
I (33) soc_init: compile time Apr 18 2025 22:41:57
W (33) soc_init: Unicore bootloader
I (35) soc_init: chip revision: v3.0
I (38) flash_init: SPI Speed      : 40MHz
I (42) flash_init: SPI Mode       : DIO
I (45) flash_init: SPI Flash Size : 4MB
I (81) boot: Image index: 0, Swap type: none
I (81) boot: Loading image 0 - slot 0 from flash, area id: 1
I (81) boot: Application start=40082d20h
I (83) boot: DRAM segment: paddr=000261e0h, vaddr=3ffb0000h, size=00aa0h (  2720) load
I (91) boot: IRAM segment: paddr=00020080h, vaddr=40080000h, size=06160h ( 24928) load
I (109) boot: IROM segment: paddr=00040000h, vaddr=400d0000h, size=032F4h ( 13044) map
I (109) boot: DROM segment: paddr=00030000h, vaddr=3f400000h, size=010D0h (  4304) map
I (127) boot: libc heap size 179 kB.
I (127) spi_flash: detected chip: generic
I (127) spi_flash: flash io: dio
W (127) spi_flash: Detected size(8192k) larger than the size in the binary image header(4096k). Using the size in the binary image header.
*** Booting Zephyr OS build v4.1.0-2348-gd453fb94075c ***

Expected behavior
printf should ouput the message "Hello World...."

Impact

Logs and console output

Environment (please complete the following information):

  • OS: Windows WSL
  • Toolchain Zephyr
  • the lastest version with west update

Additional context

if I added print with printk function as follow on main.c

int main(void)
{
        printf("printf Hello World! %s\n", CONFIG_BOARD_TARGET);
        printk("pirntk Hello World! %s\n", CONFIG_BOARD_TARGET);

        return 0;
}

then rebuild and run, the monitor show like this:

Serial port /dev/ttyACM0
Connecting....
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP32
--- idf_monitor on /dev/ttyACM0 115200 ---
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
ets �ets Jul 29 2019 12:21:46
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3ffe8000,len:7644
ho 0 tail 12 room 4
load:0x40078000,len:4184
ho 0 tail 12 room 4
load:0x400a0000,len:28236
entry 0x400a216c
I (33) soc_init: MCUboot 2nd stage bootloader
I (33) soc_init: compile time Apr 18 2025 22:41:57
W (33) soc_init: Unicore bootloader
I (35) soc_init: chip revision: v3.0
I (38) flash_init: SPI Speed      : 40MHz
I (42) flash_init: SPI Mode       : DIO
I (45) flash_init: SPI Flash Size : 4MB
I (81) boot: Image index: 0, Swap type: none
I (81) boot: Loading image 0 - slot 0 from flash, area id: 1
I (81) boot: Application start=40082d20h
I (83) boot: DRAM segment: paddr=000261e0h, vaddr=3ffb0000h, size=00aa0h (  2720) load
I (91) boot: IRAM segment: paddr=00020080h, vaddr=40080000h, size=06160h ( 24928) load
I (109) boot: IROM segment: paddr=00040000h, vaddr=400d0000h, size=03304h ( 13060) map
I (109) boot: DROM segment: paddr=00030000h, vaddr=3f400000h, size=010F0h (  4336) map
I (127) boot: libc heap size 179 kB.
I (127) spi_flash: detected chip: generic
I (127) spi_flash: flash io: dio
W (127) spi_flash: Detected size(8192k) larger than the size in the binary image header(4096k). Using the size in the binary image header.
*** Booting Zephyr OS build v4.1.0-2348-gd453fb94075c ***
pirntk Hello World! esp32_devkitc_wrover/esp32/procpu

and the .config in build dir is :

SB_CONFIG_BOARD="esp32_devkitc_wrover"
SB_CONFIG_BOARD_REVISION=""
SB_CONFIG_BOARD_ESP32_DEVKITC_WROVER=y
SB_CONFIG_BOARD_ESP32_DEVKITC_WROVER_ESP32_PROCPU=y
SB_CONFIG_BOARD_QUALIFIERS="esp32/procpu"
SB_CONFIG_SOC="esp32"
SB_CONFIG_SOC_SERIES="esp32"
SB_CONFIG_SOC_FAMILY="espressif_esp32"
SB_CONFIG_SOC_PART_NUMBER="ESP32_WROVER_E_N4R8"
SB_CONFIG_SOC_TOOLCHAIN_NAME="espressif_esp32"
SB_CONFIG_SOC_FAMILY_ESPRESSIF_ESP32=y
SB_CONFIG_SOC_SERIES_ESP32=y
SB_CONFIG_SOC_ESP32_WROVER_E_N4R8=y
SB_CONFIG_SOC_ESP32=y
SB_CONFIG_SOC_ESP32_PROCPU=y

#
# Sysbuild image configuration
#

#
# Modules
#

#
# Available modules.
#
SB_CONFIG_ZEPHYR_ACPICA_MODULE=y
SB_CONFIG_ZEPHYR_CMSIS_MODULE=y
SB_CONFIG_ZEPHYR_CMSIS_DSP_MODULE=y
SB_CONFIG_ZEPHYR_CMSIS_NN_MODULE=y
SB_CONFIG_ZEPHYR_FATFS_MODULE=y
SB_CONFIG_ZEPHYR_ADI_MODULE=y
SB_CONFIG_ZEPHYR_ALTERA_MODULE=y
SB_CONFIG_ZEPHYR_HAL_AMBIQ_MODULE=y
SB_CONFIG_ZEPHYR_ATMEL_MODULE=y
SB_CONFIG_ZEPHYR_HAL_ESPRESSIF_MODULE=y
SB_CONFIG_ZEPHYR_HAL_ETHOS_U_MODULE=y
SB_CONFIG_ZEPHYR_HAL_GIGADEVICE_MODULE=y
SB_CONFIG_ZEPHYR_HAL_INFINEON_MODULE=y
SB_CONFIG_ZEPHYR_HAL_INTEL_MODULE=y
SB_CONFIG_ZEPHYR_MICROCHIP_MODULE=y
SB_CONFIG_ZEPHYR_HAL_NORDIC_MODULE=y
SB_CONFIG_ZEPHYR_NUVOTON_MODULE=y
SB_CONFIG_ZEPHYR_HAL_NXP_MODULE=y
SB_CONFIG_ZEPHYR_OPENISA_MODULE=y
SB_CONFIG_ZEPHYR_QUICKLOGIC_MODULE=y
SB_CONFIG_ZEPHYR_HAL_RENESAS_MODULE=y
SB_CONFIG_ZEPHYR_HAL_RPI_PICO_MODULE=y
SB_CONFIG_ZEPHYR_HAL_SILABS_MODULE=y
SB_CONFIG_ZEPHYR_HAL_ST_MODULE=y
SB_CONFIG_ZEPHYR_HAL_STM32_MODULE=y
SB_CONFIG_ZEPHYR_HAL_TDK_MODULE=y
SB_CONFIG_ZEPHYR_HAL_TELINK_MODULE=y
SB_CONFIG_ZEPHYR_TI_MODULE=y
SB_CONFIG_ZEPHYR_HAL_WCH_MODULE=y
SB_CONFIG_ZEPHYR_HAL_WURTHELEKTRONIK_MODULE=y
SB_CONFIG_ZEPHYR_XTENSA_MODULE=y
SB_CONFIG_ZEPHYR_HOSTAP_MODULE=y
SB_CONFIG_ZEPHYR_LIBLC3_MODULE=y
SB_CONFIG_ZEPHYR_LIBMCTP_MODULE=y
SB_CONFIG_ZEPHYR_LIBMETAL_MODULE=y
SB_CONFIG_ZEPHYR_LITTLEFS_MODULE=y
SB_CONFIG_ZEPHYR_LORAMAC_NODE_MODULE=y
SB_CONFIG_ZEPHYR_LVGL_MODULE=y
SB_CONFIG_ZEPHYR_MBEDTLS_MODULE=y
SB_CONFIG_ZEPHYR_MCUBOOT_MODULE=y
SB_CONFIG_ZEPHYR_MIPI_SYS_T_MODULE=y
SB_CONFIG_ZEPHYR_NRF_WIFI_MODULE=y
SB_CONFIG_ZEPHYR_OPEN_AMP_MODULE=y
SB_CONFIG_ZEPHYR_OPENTHREAD_MODULE=y
SB_CONFIG_ZEPHYR_PERCEPIO_MODULE=y
SB_CONFIG_ZEPHYR_PICOLIBC_MODULE=y
SB_CONFIG_ZEPHYR_SEGGER_MODULE=y
SB_CONFIG_ZEPHYR_TINYCRYPT_MODULE=y
SB_CONFIG_ZEPHYR_TRUSTED_FIRMWARE_A_MODULE=y
SB_CONFIG_ZEPHYR_TRUSTED_FIRMWARE_M_MODULE=y
SB_CONFIG_ZEPHYR_UOSCORE_UEDHOC_MODULE=y
SB_CONFIG_ZEPHYR_ZCBOR_MODULE=y
SB_CONFIG_ZEPHYR_NRF_HW_MODELS_MODULE=y

#
# Unavailable modules, please install those via the project manifest.
#
# end of Modules

# SB_CONFIG_WARN_EXPERIMENTAL is not set
SB_CONFIG_WARN_DEPRECATED=y
SB_CONFIG_SUPPORT_BOOTLOADER=y
SB_CONFIG_SUPPORT_BOOTLOADER_MCUBOOT_ZEPHYR=y
# SB_CONFIG_BOOTLOADER_NONE is not set
SB_CONFIG_BOOTLOADER_MCUBOOT=y
# SB_CONFIG_MCUBOOT_MODE_SINGLE_APP is not set
# SB_CONFIG_MCUBOOT_MODE_SWAP_USING_OFFSET is not set
# SB_CONFIG_MCUBOOT_MODE_SWAP_USING_MOVE is not set
# SB_CONFIG_MCUBOOT_MODE_SWAP_WITHOUT_SCRATCH is not set
# SB_CONFIG_MCUBOOT_MODE_SWAP_SCRATCH is not set
SB_CONFIG_MCUBOOT_MODE_OVERWRITE_ONLY=y
# SB_CONFIG_MCUBOOT_MODE_DIRECT_XIP is not set
# SB_CONFIG_MCUBOOT_MODE_DIRECT_XIP_WITH_REVERT is not set
# SB_CONFIG_MCUBOOT_MODE_RAM_LOAD is not set
# SB_CONFIG_MCUBOOT_MODE_FIRMWARE_UPDATER is not set
# SB_CONFIG_MCUBOOT_MODE_SINGLE_APP_RAM_LOAD is not set
SB_CONFIG_SIGNATURE_TYPE="NONE"
SB_CONFIG_BOOT_SIGNATURE_TYPE_NONE=y
# SB_CONFIG_BOOT_SIGNATURE_TYPE_RSA is not set
# SB_CONFIG_BOOT_SIGNATURE_TYPE_ECDSA_P256 is not set
# SB_CONFIG_BOOT_SIGNATURE_TYPE_ED25519 is not set
SB_CONFIG_BOOT_SIGNATURE_KEY_FILE=""

#
# Build options
#
# SB_CONFIG_COMPILER_WARNINGS_AS_ERRORS is not set
# end of Build options
@makerinchina-iot makerinchina-iot added the bug The issue is a bug, or the PR is fixing a bug label Apr 18, 2025
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Hi @makerinchina-iot! We appreciate you submitting your first issue for our open-source project. 🌟

Even though I'm a bot, I can assure you that the whole community is genuinely grateful for your time and effort. 🤖💙

@henrikbrixandersen henrikbrixandersen added the platform: ESP32 Espressif ESP32 label Apr 19, 2025
@danieldegrasse danieldegrasse added the priority: low Low impact/importance bug label Apr 22, 2025
@sylvioalves sylvioalves mentioned this issue Apr 24, 2025
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@sylvioalves sylvioalves

Labels
bug The issue is a bug, or the PR is fixing a bug platform: ESP32 Espressif ESP32 priority: low Low impact/importance bug
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drivers: uart: esp32: revert level to PRE_KERNEL_1 sylvioalves/zephyr
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@henrikbrixandersen @sylvioalves @danieldegrasse @makerinchina-iot