repl - “Read-evaluate-output “loop

Adapted Air780E Air780EP Air780EPS

Note

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Example

--[[
Modules and corresponding ports supported by this function
Module/chip port baud rate and other parameters
Air101/Air103    UART0   921600  8 None 1
Air105           UART0   1500000 8 None 1
ESP32C3          UART0   921600  8 None 1 -- Note that the simple version (without CH343) does not support
ESP32C2          UART0   921600  8 None 1
ESP32S2          UART0   921600  8 None 1
Air780E          Virtual serial port arbitrary -- call from physical UART not supported

Method of use:
1. Non-Air780E series can use any serial port tool, open the corresponding serial port, remember to check "enter line feed"
2. Air780E Please use it with the LuaTools. There is a "simple serial port tool" in the menu to send. Remember to check "Enter and wrap.""
2. Send a lua statement and end with a carriage return

Statement support:
1. Single-line lua statement, which ends with a carriage return
2. Multi-line statements, wrapped and sent in the following format, such

<<EOF
for k,v in pairs(_G) do
  print(k, v)
end
EOF

Precautions:
1. can be disabled by the repl.enable(false) statement REPL
2. REPL automatically fails after UART port specified with uart.setup/uart.close
3. Single-line statements generally support up to 510 bytes. For longer statements, please use the "multi-line statement" method.
4. To define global variables, use the form_G.xxx = yyy

If you have any questions, please post feedback at chat.openluat.com
]]

repl.enable(re)

Enable or disable the REPL feature

Parameters

Incoming Value Type	Explanation
bool	Enabled or not, the default is enabled
return	Previous setting status

Return Value

None

Examples

-- If the firmware supports REPL, that is, REPL is enabled during compilation, the REPL function is enabled by default.
-- This function is to provide a way to close the REPL
repl.enable(false)

---

repl.push(data)

Proactively push the data to be processed to the bottom layer

Parameters

Incoming Value Type	Explanation
string	Data to be processed, usually from the serial port.

Return Value

return value type	explanation
nil	No return value

Examples

-- This function is only required for virtual serial devices

---