Enable BT classic

[Emiel84]

After following all the steps to compile the AT library and solving an issue in the ESP-IDF library : https://github.com/espressif/esp-idf/issues/4658

I have been able to build the AT command set successfully. But the ESP-WROOM-32 seems not be able to find the bootable app partitions anymore after changing the menuconfig.

I (254) esp_image: segment 4: paddr=0x00140018 vaddr=0x400d0018 size=0x130d74 (1248628) map I (696) esp_image: segment 5: paddr=0x00270d94 vaddr=0x40083258 size=0x17d54 ( 97620) load I (737) esp_image: segment 6: paddr=0x00288af0 vaddr=0x400c0000 size=0x00064 ( 100) load E (738) esp_image: Image length 1608576 doesn't fit in partition length 1572864 E (743) boot: OTA app partition slot 0 is not bootable E (749) esp_image: image at 0x280000 has invalid magic byte E (755) boot: OTA app partition slot 1 is not bootable E (761) boot: No bootable app partitions in the partition table I (60) boot: ESP-IDF v3.3-dirty 2nd stage bootloader I (60) boot: compile time 16:16:47 I (60) boot: Enabling RNG early entropy source... I (64) boot: SPI Speed : 40MHz I (68) boot: SPI Mode : DIO I (72) boot: SPI Flash Size : 4MB I (76) boot: Partition Table: I (80) boot: ## Label Usage Type ST Offset Length I (87) boot: 0 phy_init RF data 01 01 0000f000 00001000 I (94) boot: 1 otadata OTA data 01 00 00010000 00002000 I (102) boot: 2 nvs WiFi data 01 02 00012000 0000e000 I (109) boot: 3 at_customize unknown 40 00 00020000 000e0000 I (117) boot: 4 ota_0 OTA app 00 10 00100000 00180000 I (125) boot: 5 ota_1 OTA app 00 11 00280000 00180000 I (132) boot: End of partition table I (136) boot: No factory image, trying OTA 0 The Wroom was having ESP32-WROOM-32_AT_Bin_V2.0 installed before as a baseline. I have been performing the following steps in the menuconfig for re-building the AT set. Enable BT classic Component config -> AT -> [*] AT bt command support. Set the UART port to align with ESP-WROOM-32 Component config -> EPS32-Specific-> [] UART for console output -> Custom. Component config -> EPS32-Specific-> [] UART TX 17 Component config -> EPS32-Specific-> [*] UART RX 16 Set the correct output (connected with the ESP32 programming port). Serial Flashed config - /Dev/COM7 Is there something I forget here ? Is there an address I need to change to get this installed on the correct location ? When I reprogram the released "esp-at.bin" at address location 0x100000 into the tool. The tool is able to boot normally again without any issues mentioned. But the AT commands are not handled normally. It seems there is a misalignment with the written data locations and the existing..

[ghost]

I read somewhere that only wrover supports bt classic due to big memory usage, wrom doesnt have external ram. check my issue what i created a few weeks ago you may find useful answers there.

https://github.com/espressif/esp-at/issues/319

[xcguang]

@kurta999 You are right, on the other hand, the firmware will be more larger if enable BT classic. You can compile it as following, which you can find in .gitlab-ci.yml, or you can enlarge OTA partition size

export ESP_AT_MODULE_NAME=WROVER-32
export ESP_AT_PROJECT_PATH=$(pwd)
./esp-idf/tools/idf.py build -DSILENCE=1

[xcguang]

Is the issue solved? May I close it?