Regarding ESP32-C6 chip BLE is not working

[ravik6693]

Hi,

Good Day !!

entry 0x4086b91a
I (23) boot: ESP-IDF v5.5.1 2nd stage bootloader
I (23) boot: compile time Nov 21 2025 15:20:23
I (24) boot: chip revision: v0.2
I (24) boot: efuse block revision: v0.3
I (26) boot.esp32c6: SPI Speed : 80MHz
I (30) boot.esp32c6: SPI Mode : DIO
I (34) boot.esp32c6: SPI Flash Size : 2MB
I (38) boot: Enabling RNG early entropy source...
I (42) boot: Partition Table:
I (45) boot: ## Label Usage Type ST Offset Length
I (51) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (58) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (64) boot: 2 factory factory app 00 00 00010000 00100000
I (71) boot: End of partition table
I (74) esp_image: segment 0: paddr=00010020 vaddr=420a8020 size=1e6d4h (124628) map
I (105) esp_image: segment 1: paddr=0002e6fc vaddr=40800000 size=0191ch ( 6428) load
I (107) esp_image: segment 2: paddr=00030020 vaddr=42000020 size=a7184h (684420) map
I (237) esp_image: segment 3: paddr=000d71ac vaddr=4080191c size=12d38h ( 77112) load
I (254) esp_image: segment 4: paddr=000e9eec vaddr=40814660 size=02884h ( 10372) load
I (262) boot: Loaded app from partition at offset 0x10000
I (262) boot: Disabling RNG early entropy source...
I (272) cpu_start: Unicore app
I (281) cpu_start: Pro cpu start user code
I (281) cpu_start: cpu freq: 160000000 Hz
I (281) app_init: Application information:
I (281) app_init: Project name: hidd_demos
I (285) app_init: App version: 1
I (288) app_init: Compile time: Nov 21 2025 15:19:46
I (293) app_init: ELF file SHA256: 15ff405e6...
I (298) app_init: ESP-IDF: v5.5.1
I (302) efuse_init: Min chip rev: v0.0
I (305) efuse_init: Max chip rev: v0.99
I (309) efuse_init: Chip rev: v0.2
I (313) heap_init: Initializing. RAM available for dynamic allocation:
I (319) heap_init: At 4081B390 len 00061280 (388 KiB): RAM
I (325) heap_init: At 4087C610 len 00002F54 (11 KiB): RAM
I (330) heap_init: At 50000000 len 00003FE8 (15 KiB): RTCRAM
I (336) spi_flash: detected chip: generic
I (339) spi_flash: flash io: dio
W (342) spi_flash: Detected size(8192k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
I (354) sleep_gpio: Configure to isolate all GPIO pins in sleep state
I (360) sleep_gpio: Enable automatic switching of GPIO sleep configuration
I (367) coexist: coex firmware version: b0bcc39
I (371) coexist: coexist rom version 5b8dcfa
I (375) main_task: Started on CPU0
I (375) main_task: Calling app_main()
I (385) BLE_INIT: Using main XTAL as clock source, chip ver: 2
I (385) BLE_INIT: ble controller commit:[898f73c]
I (395) BLE_INIT: Bluetooth MAC: 98:a3:16:67:d1:52
I (395) phy_init: phy_version 341,a6c8fe6,Jul 30 2025,18:34:11
I (445) phy: libbtbb version: a945109, Jul 30 2025, 18:34:25
I (465) HID_LE_PRF: esp_hidd_prf_cb_hdl(), start added the hid service to the stack database. incl_handle = 40
I (465) HID_LE_PRF: hid svc handle = 2d
I (465) main_task: Returned from app_main()


it is the log from ESP32 chip, can anyone tell what is the meaning of this log

Actually our software team is using example code for BLE when it is getting flashed in EVK kit it is working, but when it is getting flashed in our own boiard design it is not working and showing the log above, in the EVK kit there is ESP32 chiop with QFN40 package, We are not receivinng any signal on the ANT pin of ESP32-C6FH4 chip any idea?

[lichurbagan]

Your log is normal. The BLE stack starts correctly. The EVK works because its RF path is tuned. Your custom board likely has RF design errors. Check the antenna matching network. Check the RF trace impedance. Check the 32 MHz crystal layout. Check decoupling near RF pins. Bad RF layout gives zero antenna output. Software is fine; hardware is not.