WE310F5-X IP2WiFi Legacy AT Command Reference Guide
80664ST11079A Rev. 3
Page 13 of 79
2021-10-25
Not Subject to NDA
Figure 2: Operating Modes in Serial-to-Wireless Application.
Note/Tip: The default UART baud rate is 115200 instead of 921600,
using 8 bit characters with no parity bits and one stop bit.
Data Handling
In Data Processing Mode, data transfers are managed using various escape sequences.
Each escape sequence starts with the ASCII character 27 (0x1B); this is equivalent to the
ESC key. The encoding of data and related commands are described in the following
pages. This encoding is used for both transmitted and received data.
The process of sending a data packet is depicted in the below figure. The sequence ESC
S or ESC U is sent to initiate the data transfer. This sequence is followed by a single-digit
CID; if the CID is valid, the subsequent characters are assembled into a data stream,
terminated by ESC E, ESC C, ESC S or ESC U. With a terminating sequence, the data is
sent via the requested network connection and the system either returns to command
processing or to further data processing.
Escape <ESC> sequences like ESC H, ESC S, ESC u and ESC U support only ASCII data
handling while ESC Z, ESC Y and ESC y supports all types of data (ASCII, Binary etc.)
handling.
