ETS_FRC_TIMER1_NMI_INTR_ATTACH does not work

[hrsavla]

I am using "Sming Framework with latest SDK1.3" and trying to port hw_timer code. But I am not able to compile hw_timer.c code.
It seems there is no NmiTimSetFunc(func).

Kindly look the bellow error and let me know of header files which I need to point NmiTimSetFunc.

I am getting bellow error

Code: Select all

CLEAN SUCCESSFUL (total time: 4s)
C+ app/application.cpp
C+ app/hw_timer.cpp
In file included from c:/tools/Sming/Sming/system/include/esp_systemapi.h:6:0,
                 from include/user_config.h:29,
                 from app/hw_timer.cpp:1:
app/hw_timer.cpp: In function 'void hw_timer_init(FRC1_TIMER_SOURCE_TYPE, u8)':
c:/Espressif/ESP8266_SDK/include/ets_sys.h:55:20: error: 'NmiTimSetFunc' was not declared in this scope
  NmiTimSetFunc(func)
                    ^
app/hw_timer.cpp:65:9: note: in expansion of macro 'ETS_FRC_TIMER1_NMI_INTR_ATTACH'
         ETS_FRC_TIMER1_NMI_INTR_ATTACH(hw_timer_isr_cb);
         ^
c:/Espressif/ESP8266_SDK/include/ets_sys.h:52:62: error: invalid conversion from 'void (*)()' to 'void*' [-fpermissive]
     ets_isr_attach(ETS_FRC_TIMER1_INUM, (func), (void *)(arg))
                                                              ^
app/hw_timer.cpp:67:9: note: in expansion of macro 'ETS_FRC_TIMER1_INTR_ATTACH'
         ETS_FRC_TIMER1_INTR_ATTACH(hw_timer_isr_cb, NULL);
         ^
In file included from include/user_config.h:29:0,
                 from app/hw_timer.cpp:1:
c:/tools/Sming/Sming/system/include/esp_systemapi.h:46:13: error:   initializing argument 2 of 'void ets_isr_attach(int, void*, void*)' [-fpermissive]
 extern void ets_isr_attach(int intr, void *handler, void *arg);
             ^
make.exe": *** [out/build/app/hw_timer.o] Error 1

BUILD FAILED (exit value 2, total time: 9s)


[ESP_Faye]

Hi,

Please have a try with the attachment.

[philip]

I'm using the SDK1.5.1 and it appears that I have problems when I use the NMI_SOURCE option (I get crashes in the SDK).

dkinzer: Did you get your issue solved? Or is the solution to use the FRC1_SOURCE instead?

Thanks

Philip

[eriksl]

Are you using pwm?

Are you returning within a few instructions from the handler?

Is the handler in iram?

[philip]

Yes, the handler is in iram0.text -- I added the annotations to hw_timer.c to the isr callback function for this as well.

My handler does call gpio_output_set (which is in the bootrom) -- I guess that that is ok.

On further investigation, it appears that the handler does access a data structure, and this has been placed into irom0 -- the compiler figured out that I never modified this data structure so it could make it const and put it in irom0. Argh!!

It seems to be working much better now -- hasn't crashed yet.

Thank you.

[eriksl]

If only remotely possible you shouldn't do any real work in an interrupt service route. Make it set a flag and handle it in normal code. It's very easy completely setup all sorts of hardware handling by running too long in an ISR, especially NMI.