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+--- Forum: KC868-A6 (https://www.kincony.com/forum/forumdisplay.php?fid=22)
+--- Thread: kc868-a6 communication fault (/showthread.php?tid=7268)
kc868-a6 communication fault - smortopoul - 12-27-2024
Hi I have a kc868-a6 board that i have recently bought. I can't manage to communicate with it. I am using the esp32 download tool v3.9.2 in order to download the firmware "KCS_KC868_A6_V2.2.8.bin" but at the command dos screen that opens it shows repeatedly dots when i push the start button.
after too many dots without result i press the stop button and it gives the messages
"[2024-12-27 02:19:54,814][ESP8266Loader_spi[1]][espDownloader.py][line:422][ERROR]: Chip sync error
[2024-12-27 02:19:54,814][ESP8266Loader_spi[1]][espDownloader.py][line:582][ERROR]: ESP32 Chip sync error esp_sync_blocking.
no log file output ..."
I am using a usb to rs232 converter and it gives me the COM3 port.
I have also tried with a direct usb cable but it doesn't shows any port.
Can anyone please help me?
I have also tried with the arduino application to upload a short sketch but it can't communicate with the board.
Then I have installed the "KC868-A series ESP32 board USB Driver For Windows" but with no success again.
Finally i have tried with the "uart assistant" tool but no success.
The attached file has the printscreen of my trials
kc868-a6 communication problem.pdf (Size: 447.95 KB / Downloads: 29)
RE: kc868-a6 communication fault - admin - 12-28-2024
already told you on whatsapp solved this issue. Because you are using USB-RS232 cable download firmware, it's wrong. You should use USB-C cable to download firmware.