ATMega2560 - power_usart3_disable' was not declared in this scope about low-power

[Cysign]

By removing line 440 and line 475 I was able to compile properly.

line 440:
if (usart3 == USART3_OFF) power_usart3_disable();

line 475:
if (usart3 == USART3_OFF) power_usart3_enable();

[rocketscream]

@AnoxySoftware thank you for the suggestion. I'm going to do a clean up on the libraries.

[vossilius]

+1

[bsoufflet]

+1 also on LowPower version 1.60 and arduino IDE 1.8.1 + Arduino Mega :

LowPower.cpp: In member function 'void LowPowerClass::idle(period_t, adc_t, timer5_t, timer4_t, timer3_t, timer2_t, timer1_t, timer0_t, spi_t, usart3_t, usart2_t, usart1_t, usart0_t, twi_t)':
LowPower.cpp:440:49: error: 'power_usart3_disable' was not declared in this scope
if (usart3 == USART3_OFF) power_usart3_disable();
^
LowPower.cpp:475:48: error: 'power_usart3_enable' was not declared in this scope
if (usart3 == USART3_OFF) power_usart3_enable();
^

[Cysign]

Same here. Did anyone fix this?

[AnoxySoftware]

A better solution is to use a preprocessor macro in case this get's added back someday in the power.h of avr:

	#if defined(__AVR_HAVE_PRR_PRUSART3)
	if (usart3 == USART3_OFF)	power_usart3_disable();
	#endif

	#if defined(__AVR_HAVE_PRR_PRUSART3)
	if (usart3 == USART3_OFF)	power_usart3_enable();
	#endif

[tvixen]

Arduino Mega 2560 issue still not fixed.

In Arduino Compiler 1.8.5 we get this error:
LowPower.cpp:597: error: 'power_usart3_enable' was not declared in this scope
if (usart3 == USART3_OFF) power_usart3_enable();
exit status 1
'power_usart3_disable' was not declared in this scope

For your information, its working with Nano, and Uno.

[maxholgasson]

Same here. Still using 1.8.4

[Chilkos]

Unfortunately still not fixed, probably not good to have marked as closed seeing as the readme states this board is supported. Deleting the lines above does let it compile, however these are now at lines 567 & 602