No hwtimer left

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#1

Hi

I am new to RIOT-OS and have been working through the tutorial found at http://www.codeproject.com/Articles/840499/RIOT-Tutorial . When I type “make all term” at the default examples I receive the error

No hwtimer left RIOT/examles/default/bin/native/default/elf: ltc4150_enable_int: hwtimer_set make: *** [term] Error 1

Do you have any suggestions on how to correct this?

Kind Regards Laura Martinus

#2

Hi Laura, Can you tell us more about your system? Are you using Linux? BSD? OS X? Which version? Which toolchain? Are you using a VM or not? Emmanuel

#3

I am using Ubuntu 14.04 LTS in VMware player

#4

Hey,

http://www.codeproject.com/Articles/840499/RIOT-Tutorial . When I type "make all term" at the default examples I receive the error

No hwtimer left RIOT/examles/default/bin/native/default/elf: ltc4150_enable_int: hwtimer_set make: *** [term] Error 1

Do you have any suggestions on how to correct this?

Try to comment out these lines from the Makefile (examples/default/Makefile) and recompile:

(they're lines 53 to 56 in master)

53 ifneq (,$(filter native,$(BOARD))) 54 › USEMODULE += ltc4150 55 › USEMODULE += random 56 endif

This will disable the emulation of an energy monitor chip, which you probably don't need.

The problem is cause by a recent switch to native that makes it effectively only have one "hwtimer" which is being used up be the software timer multiplexer ("vtimer"), and ltc4150's native driver hard-exiting when it cannot get a timer.

Kaspar

#5

This causes undefined references in files such as main.c auto_init.c sc_ltc4150.c

#6

I guess you should remove the auto-initialisation of the ltc4150 module as well from your main.c

so remove the following block from your main.c

#ifdef MODULE_LTC4150
	ltc4150_start();
#endif
#7

Hey,

#8

This solved my problem. Thank you :slight_smile: