Jack of all trades, Doctor of Philosophy.
Sometimes I make some modification to my site’s apache config and apache stops functioning, but I cannot get enough information from /var/log/apache2/error.log. Here’s a command that will tell you where the problem is:
sudo /usr/sbin/httpd -k start -e Debug -E /dev/stdout
It starts apache for debugging and prints out the messages on screen, so that hopefully you can find something useful.
Leave a CommentWhen uploading with avrdude the plugin give a error prompt saying “Port already in use” (while no other application is using the port). After clicking OK it actually uploads the program to Arduino board.
After reading issue #6 I check the librxtxSerial.jnilib in eclipse:
.cp$ file librxtxSerial.jnilib librxtxSerial.jnilib: Mach-O universal binary with 4 architectures librxtxSerial.jnilib (for architecture x86_64): Mach-O 64-bit bundle x86_64 librxtxSerial.jnilib (for architecture i386): Mach-O bundle i386 librxtxSerial.jnilib (for architecture ppc7400): Mach-O bundle ppc librxtxSerial.jnilib (for architecture ppc64): Mach-O 64-bit bundle ppc64
While in my Arduino application the librxtxSerial.jnilib output is:
llibrxtxSerial.jnilib: Mach-O universal binary with 2 architectures librxtxSerial.jnilib (for architecture i386): Mach-O bundle i386 librxtxSerial.jnilib (for architecture ppc): Mach-O bundle ppc
So I just copied the Arduino.app//Contents/Resources/Java/librxtxSerial.jnilib file to eclipse/configuration/org.eclipse.osgi/bundles/419/1/.cp/librxtxSerial.jnilib It works after restarting eclipse. No error prompts are shown.
Leave a CommentMy iCal crashes everytime when someone sends me an invitation and I try either to accapt or decline it. After some investigation I found out it is the problem with “iCal Reply Checker” at http://www.nhoj.co.uk/icalreplychecker
After unstalled this app, it resets the Mail.scpt file to an empty file. To solve the problem: get another copy of Mail.scpt from another Mac, preferably from the same OS X version; and put it inside the folder: /Applications/iCal.app/Contents/Resources/Scripts
Lesson learnt: take care when trying amature software.
9 CommentsI found a bug in Waspmote API v0.15 when I was trying to set XBee link keys. The API failed to set the key as specified in the code. The bug lies in function gen_data()” in lines 4355-4403. Details below. However, it was corrected in v0.18.
/*
Function: Generates the API frame to send to the XBee module
Parameters:
data : The string that contains part ofthe API frame
param : The param to set
Returns: Nothing
Values: Stores in 'command' variable the API frame to send to the XBee module
*/
void WaspXBeeCore::gen_data(const char* data, uint8_t* param)
{
uint8_t inc=0;
uint8_t inc2=0;
clearCommand();
it=0;
while(data[it] != '\0') {
inc++;
it++;
}
inc/=2;
while(inc211)
{
for(it=0;it<8;it++)
{
command[inc-9+it]=param[it];
}
}
else if(inc==11)
{
for(it=0;it<3;it++)
{
command[inc-4+it]=param[it];
}
}
else if(inc==10)
{
for(it=0;it<2;it++)
{
command[inc-3+it]=param[it];
}
}
else command[inc-2]=param[0];
}
The function in v0.18 is as follows:
/*
Function: Generates the API frame to send to the XBee module
Parameters:
data : The string that contains part of the API frame
param : The param to set
Returns: Nothing
Values: Stores in 'command' variable the API frame to send to the XBee module
*/
void WaspXBeeCore::gen_data(const char* data, uint8_t* param)
{
uint8_t inc=0;
uint8_t inc2=0;
clearCommand();
it=0;
while(data[it] != '\0') {
inc++;
it++;
}
inc/=2;
while(inc2
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