set_each_analog_state not defined

2 replies [Last post]
Thu, 11/19/2015 - 08:14
kfrederick
Title: NooBot
Joined: 11/19/2015
Posts:
BotPoints: 5
User offline. Last seen 7 years 7 weeks ago.

Hi there,

New coach to Botball here.

We are trying to use the library function set_each_analog_state(), but the compiler complains that this is not defined.

Here is our code:

  1. // Created on Thu November 19 2015
  2.  
  3. int main()
  4. {
  5. 	set_each_analog_state(1,0,0,0,0,0,0,0);
  6. 	return 0;
  7. }

Here is the compiler/linker error:

sensor.c:
sensor.c:7:2: warning: implicit declaration of function 'set_each_analog_state' is invalid in C99 [-Wimplicit-function-declaration]
set_each_analog_state(1,0,0,0,0,0,0,0);
^
1 warning generated.
sensor.c.o, __internal_target___.c.o:
Undefined symbols for architecture x86_64:
"_set_each_analog_state", referenced from:
_main in sensor.c.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Is there a #include that we need? Or some other configuration that we need to do? We have successfully compiled other programs and run them on our Link.

Many thanks,
Kevin

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Thu, 12/03/2015 - 08:38
#1
kfrederick
Title: NooBot
Joined: 11/19/2015
Posts:
BotPoints: 5
User offline. Last seen 7 years 7 weeks ago.

Hey! Never saw a response, but it seems that the set_each_analog_state() function is no longer used. There is a function called analog_et(int) that get the value from the ET sensor directly, which is what I was looking for. For example, here is a simple program that will repeatedly print the value of the ET sensor located on port 0:

  1. int main()
  2. {
  3. 	int distance;
  4. 	while(1) {
  5. 		distance = analog_et(0);
  6. 		printf("ET: %d\n", distance);
  7. 	}
  8. 	return 0;
  9. }

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Wed, 11/30/2016 - 06:27
#2
puisi34
Title: NooBot
Joined: 11/30/2016
Posts:
BotPoints: 6
User offline. Last seen 6 years 16 weeks ago.

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