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Topic: serial send bytes faster with mousebutton in use? (Read 1855 times) |
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blub
Guest
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serial send bytes faster with mousebutton in use?
« on: Dec 6th, 2004, 1:31pm » |
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Hi,
I am not sure, but I wan't to notify some kind of strange phenomon (maybe software-bug?).
Although I made it v67. the serialWrite() is putting out bytes faster when the mousebutton is pressed or used. I noticed thiw kind of behaviour with a steppermotor and the following code:
Code:
byte[] off = { 0 };
byte[] s = { 1,3 };
byte[] t = { 2,3 };
byte[] e = { 2,4 };
byte[] p = { 1,4 };
int time= 5;
void setup() {
//using a FTDI-232 for communication to PIC (baudrate = 115200)
beginSerial(115200);
}
void loop() {
//write bytes to PIC, used for pin 1 and 3; step 1 for motor.
serialWrite(s);
//time to not overflow my serial_buffer at the PIC-side
delay (time);
//write byte = 0 to PIC, used to set pin 1 and 3 off..
serialWrite(off);
//go to next step...
serialWrite(t);
delay (time);
serialWrite(off);
serialWrite(e);
delay (time);
serialWrite(off);
serialWrite(p);
delay (time);
serialWrite(off);
}
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Has anyone noticed this before, is my way of coding not ok? and does somebody have another way to control a stepper?
Thanks in advance!
Erik
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| « Last Edit: Dec 6th, 2004, 1:32pm by blub » |
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TomC
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Re: serial send bytes faster with mousebutton in u
« Reply #1 on: Dec 6th, 2004, 1:44pm » |
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Is it a serial mouse? (Or maybe a USB-serial interface and a USB mouse?)
I used to have a conflict with my modem and mouse, and the only way I could download at 56k was to keep the mouse moving!
Maybe it's a simple conflict like that? Have you tried a different port?
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blub
Guest
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Re: serial send bytes faster with mousebutton in u
« Reply #2 on: Dec 7th, 2004, 1:14am » |
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on Dec 6th, 2004, 1:44pm, TomC wrote:Is it a serial mouse (Or maybe a USB-serial interface and a USB mouse)
Maybe it's a simple conflict like that Have you tried a different port
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Thanks for the reply...and a answer...
This is my fault by using the word "mouse"..
I'am wrong by saying mousebutton is used or pressed down, when i use a laptop (G4 Pb) with a trackpad..
So when I use a trakcpad and press the trakcpad-button this phenomon occurs...
So probably it's not a conflict and I think the serial-protocol works fine, although it is working faster when you press the trackpad...but would be nice not to push your trackpad the whole time..to have such speed of serial_communication.
Are there some more suggestions
Thanks in advance!
Erik
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