Error with ISR?

[mitchsf]

Hi All,

I get this error when calling an ISR function. It has worked for a while, but this happened when I added WiFi and AP functions. So far I can't trace it to one specific action. I'm using the latest Arduino core. Advice is appreciated.

Thanks in advance.

``
Guru Meditation Error: Core 1 panic'ed (Cache disabled but cached memory region accessed)
Register dump:
PC : 0x400d0dfc PS : 0x00060034 A0 : 0x40081e75 A1 : 0x3ffc0be0
A2 : 0x00000000 A3 : 0x00000001 A4 : 0x000000ff A5 : 0x400860e4
A6 : 0x00000020 A7 : 0x3ffc8a68 A8 : 0x800810f8 A9 : 0xe00a1400
A10 : 0x00000000 A11 : 0x3ffc1188 A12 : 0x20000000 A13 : 0x00000001
A14 : 0x00000400 A15 : 0xffffffff SAR : 0x00000020 EXCCAUSE: 0x00000007
EXCVADDR: 0x00000000 LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000

Backtrace: 0x400d0dfc:0x3ffc0be0 0x40081e75:0x3ffc0c00

CPU halted.

``
Decoding 5 results
0x400d0dfc: processFrame() at C:\Users\Mitchell\SkyDrive\Arduino\GC-1000ESP/GC-1000ESP.ino line 306
0x40081e75: _xt_lowint1 at xtensa_vectors.o line ?
0x400860e4: _frxt_int_enter at ?? line ?
0x400d0dfc: processFrame() at C:\Users\Mitchell\SkyDrive\Arduino\GC-1000ESP/GC-1000ESP.ino line 306
0x40081e75: _xt_lowint1 at xtensa_vectors.o line ?

``

[mitchsf]

Sorry, I'm only familiar with the Arduino IDE, at this point. Here is the code that sets the ISR:
// intialize timer timer = timerBegin(0, 80, true); // timer_id = 0; divider=80; countUp = true; timerAttachInterrupt(timer, &processFrame, true); // edge = true timerAlarmWrite(timer, 10000, true); //10 ms

And it is started and stopped with this:
timerAlarmDisable(timer); if (FRAME_START == true) timerAlarmEnable(timer);