sierra_uniform
Member
I am using serrxd and sertxd to communicate between a picaxe (08m2) and a pc program to change some parameters of the picaxe program, which are strored in the eeprom of the pic. The picaxe subprogram for the communication is called only one time at the very beginning of the program. To open the communication at any time at first I send at serial message from the pc to the picaxe, which causes that the picaxe will restart and then do the special programmed communication in the subprogram. That all works very well.
The picaxe project is a control line flight timer, which controls the ESC for a electric motor via servo and servopos. Because I wanted to change the parameters of the timer on the airfield without using a laptop, I build a little programming box with a picaxe 08m2, which makes the same communication with the timer just like the pc program. I built several of this boxes which all performed as mentioned. But since a while new exemplars of the timer built with the same pcb and picaxe chips bought a short time ago do not longer make a restart, when I send a serial message from the progbox to the timer, for which reason the following communication to change the parameters of the timer fails.
Because I did not made any change neither in the program of the timer nor in the program of the programming box I have no idea, what could be the reason, especially not, because the pc program furthermore works. Unfortunately I have no more of the older timers, because I sold them all.
Has anyone a idea?
The picaxe project is a control line flight timer, which controls the ESC for a electric motor via servo and servopos. Because I wanted to change the parameters of the timer on the airfield without using a laptop, I build a little programming box with a picaxe 08m2, which makes the same communication with the timer just like the pc program. I built several of this boxes which all performed as mentioned. But since a while new exemplars of the timer built with the same pcb and picaxe chips bought a short time ago do not longer make a restart, when I send a serial message from the progbox to the timer, for which reason the following communication to change the parameters of the timer fails.
Because I did not made any change neither in the program of the timer nor in the program of the programming box I have no idea, what could be the reason, especially not, because the pc program furthermore works. Unfortunately I have no more of the older timers, because I sold them all.
Has anyone a idea?