Call "delay ()" will cause "WDT reset" in the timer callback function

[chzhewl]

I Using the "Ticker" class to start a timer, call the "delay (3000)" in the callback function to cause the program to have no response, and after a while, "WDT reset".
Sample code:

include <Ticker.h>

Ticker test;
void test_callback()
{
Serial1.println("start");
delay(3000); //wdt reset
Serial1.println("end"); //not print
}
void setup() {
Serial1.begin(115200);
test.once(3, test_callback);
}
void loop() {}

[igrr]

This is expected behavior. Do not call any blocking functions from Ticker
callbacks.

On Fri, Aug 7, 2015, 17:00 baozhai notifications@github.com wrote:

I Using the "Ticker" class to start a timer, call the "delay (3000)" in
the callback function to cause the program to have no response, and after a
while, "WDT reset".
Sample code:
#include
Ticker test;
void test_callback()
{
Serial1.println("start");
delay(3000); //wdt reset
Serial1.println("end"); //not print
}
void setup() {
Serial1.begin(115200);
test.once(3, test_callback);
}
void loop() {}

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[chzhewl]

tks!

what if i want to use blocking delay()?
what should i use ?