[Solved]I connot use ESP-Prog to upgrade my ESP32-S3-WROOM-1 board

[ephone0]

Dear All:
I got a problem, I can successfully upgrade the ESP32-S3-DevKitC-1 via USB->Uart interface,
But now, I have another board it is just an ESP32-S3 chip only and I try to upgrade it by ESP-Prog, but I cannot upgrade it, the monitor shows "A fatal error occurred: Failed to connect to ESP32-S3: No serial data received."

Following is my condition.

CMD = idf.py -p COM5 flash (Windows identify 2 port number 5 is the bigger number)

HW connection:
ESP-Prog(Program Interface) ESP32-S3
ESP_EN<--------------------->PIN3(EN)
VDD <--------------------->3.3v
ESP_TX<--------------------->PIN36(RXD0)
GND <--------------------->PIN40(GND)
ESP_RX <--------------------->PIN37(TXD0)
ESP_IO0<--------------------->PIN27(GPIO0)

Is it something wrong?

Can Anyone answer me? thank you very much.

[ESP_Sprite]

I think ESP_RX is the TX of the ESP-Prog board and a such should go to the RX of the ESP32. In other words: swap your TX and RX wires and it should work.

[ephone0]

Hi ESP_Sprite:
Thanks for your reply, it is workable after swap TX&RD pins. (the Word let me confuse)
I also need to IO0 connect to GND(or press the boot button) and then start flash command.