[ros-users] AVR and ROS
Homer Manalo
homer.manalo at roboteknik.com
Wed Feb 9 11:34:12 UTC 2011
OK, I just compiled it successfully now.
Added these lines to String.cpp:
String::~String()
{}
Program: 14632 bytes (44.7% Full)
>
I didn't know this would go almost half-full just for a hello world.
-Homer
On Wed, Feb 9, 2011 at 7:09 PM, Homer Manalo <homer.manalo at roboteknik.com>wrote:
> I found the culprit with the error: ‘string’ in namespace ‘ROS’ does not
> name a type.
> The ros_string.h has the ff. lines:
> #ifndef STRING_H_
> #define STRING_H_
> Should be:
> #ifndef ROS_STRING_H_
> #define ROS_STRING_H_
> The filename on the top of the comment is string.h as well. It also solved
> the error: ‘class std_msgs::String’ has no member named ‘data’. It seems
> that this is also the reason for the previous error I got regarding
> std_msgs::String. I don't have to reorder the #include files anymore.
>
> I,ve got a couple more errors this time:
> char Ros::getTopicTag(char *topic) {
> ../avrRos/ros_generated.cpp:6: error: prototype for ‘char
> Ros::getTopicTag(char*)’ does not match any in class ‘Ros’
>
> char getTopicTag(char const *topic);
> ../avrRos/Ros.h:132: error: candidate is: char Ros::getTopicTag(const
> char*)
>
> I replaced the autogenerated ros_generated.cpp with this:
>
> /* This file was autogenerated as a part of the avr_bridge pkg
> * avr_bridge was written by Adam Stambler and Phillip Quiza of
> * Rutgers University.
> */
> #include "Ros.h"
> #include "string.h" //added manually for strcmp
> char Ros::getTopicTag(char const *topic) { //manually added const to
> resolve above errors
> if (!strcmp(topic, "call"))
> return 0;
> if (!strcmp(topic, "response"))
> return 1;
> return 0; //manually added semicolon(;)
> }
> Ros ros("callResponse", 2);
>
> I'm not sure if this is the right solution but the errors are gone now,
> except one. It's a make error, here is the console output:
>
> **** Build of configuration Release for project avr_bridgeHelloWorld ****
>
> make all
> Building target: avr_bridgeHelloWorld.elf
> Invoking: AVR C++ Linker
> avr-gcc --cref -s -Os -o"avr_bridgeHelloWorld.elf" ./avrRos_user.o
> ./main.o ./avrRos/Ros.o ./avrRos/String.o ./avrRos/cc_support.o
> ./avrRos/ros_generated.o ./avrRos/ros_string.o -lArduinoProMini5VCore -lm
> -Wl,-Map,avr_bridgeHelloWorld.map,--cref
> -L/home/roboteknik/eclipse/ArduinoCores -mmcu=atmega328p
> ./main.o: In function `__static_initialization_and_destruction_0(int,
> int)':
> main.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x2c):
> undefined reference to `std_msgs::String::~String()'
> main.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x34):
> undefined reference to `std_msgs::String::~String()'
> make: *** [avr_bridgeHelloWorld.elf] Error 1
>
> I'm not sure how to solve this error.
>
>
>
> On Wed, Feb 9, 2011 at 2:51 PM, Homer Manalo <homer.manalo at roboteknik.com>wrote:
>
>> Ok now I have sorted out about the std_msgs error by ordering the #include
>> lines and object declarations:
>>
>> #include <WProgram.h>
>> #include <stdio.h>
>>
>> #include "avrRos/String.h"
>>
>> std_msgs::String call_msg;
>> std_msgs::String response_msg;
>>
>> #include "avrRos/Ros.h"
>>
>> But I still got some errors here:
>>
>> sprintf(response_msg.data.getRawString(), "You sent : %s",
>> call_msg.data.getRawString());
>> ../main.cpp:35: error: ‘class std_msgs::String’ has no member named
>> ‘data’
>> ../main.cpp:35: error: ‘class std_msgs::String’ has no member named
>> ‘data’
>>
>> call_msg.data.setMaxLength(30);
>> response_msg.data.setMaxLength(60);
>> ../main.cpp:50: error: ‘class std_msgs::String’ has no member named
>> ‘data’
>> ../main.cpp:51: error: ‘class std_msgs::String’ has no member named
>> ‘data’
>>
>> ROS::string data;
>> ../avrRos/String.h:18: error: ‘string’ in namespace ‘ROS’ does not
>> name a type
>>
>> ROS::string name;
>> ../avrRos/Ros.h:117: error: ‘string’ in namespace ‘ROS’ does not name
>> a type
>>
>>
>>
>>
>> On Tue, Feb 8, 2011 at 4:41 PM, Homer Manalo <homer.manalo at roboteknik.com
>> > wrote:
>>
>>> Hello, I'm following the hello world tutorial and getting build errors
>>> particularly with these two lines:
>>>
>>> std_msgs::String call_msg;
>>> std_msgs::String response_msg;
>>>
>>> ../main.cpp:21: error: ‘std_msgs’ has not been declared
>>> ../main.cpp:21: error: expected constructor, destructor, or type
>>> conversion before ‘call_msg’
>>> ../main.cpp:22: error: ‘std_msgs’ has not been declared
>>> ../main.cpp:22: error: expected constructor, destructor, or type
>>> conversion before ‘response_msg’
>>>
>>> Other errors are just because of the two variables not being declared.
>>>
>>>
>>>
>>> On Mon, Jan 10, 2011 at 4:10 AM, Adam Stambler <adasta at gmail.com> wrote:
>>>
>>>> Hi
>>>>
>>>> Configuring eclipse can be a bit tricky. This tutorial was the most
>>>> straight forward explanation:
>>>>
>>>> http://www.arduino.cc/playground/Code/Eclipse
>>>>
>>>> If you are still having trouble, let me know and I will write up an
>>>> explanation on the ROS site.
>>>>
>>>> -Adam
>>>>
>>>>
>>>> On Sun, Jan 9, 2011 at 2:36 PM, airthimble <
>>>> joseph.st.amand at mines.sdsmt.edu> wrote:
>>>>
>>>>>
>>>>> I have been trying to use this package in order to communicate with a
>>>>> Seeduino. I tried following the avr-bridge tutorial but had trouble
>>>>> with it.
>>>>> I typically put together a make file for a project and just use a text
>>>>> editor. I have no trouble using eclipse, I just cannot figure out how
>>>>> to
>>>>> configure it. There does not seem to be a well-made tutorial for
>>>>> configuring
>>>>> eclipse in Ubuntu 11.04.
>>>>>
>>>>> If anyone would be able to give me a push in the right direction it
>>>>> would be
>>>>> much appreciated!
>>>>>
>>>>> Thanks!
>>>>> --
>>>>> View this message in context:
>>>>> http://ros-users.122217.n3.nabble.com/AVR-and-ROS-tp2200563p2222791.html
>>>>> Sent from the ROS-Users mailing list archive at Nabble.com.
>>>>> _______________________________________________
>>>>> ros-users mailing list
>>>>> ros-users at code.ros.org
>>>>> https://code.ros.org/mailman/listinfo/ros-users
>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ros-users mailing list
>>>> ros-users at code.ros.org
>>>> https://code.ros.org/mailman/listinfo/ros-users
>>>>
>>>>
>>>
>>
>
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