Description
ESP-Prog-2 is a development and debugging tool released by Espressif. It supports functions such as automatic firmware downloading, serial communication, and JTAG online debugging. Automatic downloading and serial communication are supported on all Espressif chips, while JTAG online debugging is supported on all chips that provide JTAG interface.
ESP-Prog-2 is simple in design and easy to use—only one USB cable is needed to connect it to a computer. The computer automatically recognizes two ports, one for downloading and the other for JTAG debugging, based on the port numbers.
Considering that different target boards may operate at different voltages, both ESP-Prog-2 interfaces support either 5 V or 3.3 V power supply voltage. The voltage can be selected via jumper pins, providing compatibility with a variety of boards. However, while the power supply can switch between 3.3 V and 5 V, the RX/TX and JTAG signal levels are fixed at 3.3 V.
Related Document
- ESP-Prog-2 Schematic (PDF)
- ESP-Prog-2 PCB Layout (PDF)
- ESP-Prog-2 Dimensions (PDF)
- Getting Started