How to stop the state information output to the serial port 0?

  • I want to control UART device through serial 0 of the M5stack.
    But M5stack output string (status information?) to the serial 0 at the timing of power on and reset. This string cause error of the UART device. So I want to stop this output. The string is like following.

    ets Jun 8 2016 00:22:57

    rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
    configsip: 0, SPIWP:0xee
    mode:DIO, clock div:1
    entry 0x400806a8
    M5Stack initializing...OK

    Even if the program is just only initializing process, the string is output. I am very confusing that. How can I stop it?

    #include <M5Stack.h>
    //HardwareSerial Myserial(0);

    void setup() {
    // put your setup code here, to run once:
    M5.begin(true, false, true);

    void loop() {
    // put your main code here, to run repeatedly:
    delay (100);