K7MDL2
commented
3 years ago Have PTT from a gpio pin now working. I am using pin 12 on my controller1 version since I have a GPS on the serial port pins 14 and 15. I also set i2c_interrupt = 0, was 15, just in case the serial activity triggers something.
The compiler error was because the Makefile feature include was named PTT. PTT was also in the ACTION enum lists in action.h and in a action.c structure. I changed PTT in both action.x files to PTT_KEY. In practice, I am mapping the PTT to MOX action and not using the PTT_KEY action.
The rest of the change was basically cloning the line monitoring setup for PTT_GPIO and adding logic into process_edge
snippets added are:
in gpio_init()
// setup PTT gpio input such as a hand held mic PTT button
ifdef PTT
g_print("%s: ENABLE_PTT INPUT LINE=%d\n", FUNCTION, PTT_KEY); if(ENABLE_PTT_GPIO) { if((ret=setup_line(chip,PTT_GPIO,PTT_ACTIVE_LOW==1))<0) { goto err; } }
endif
In process_edge():
ifdef PTT
if(ENABLE_PTT_GPIO) {
if(PTT_GPIO==offset) {
//g_print("%s: ENABLE_PTT INPUT LINE=%d\n", FUNCTION, PTT_KEY);
g_print("%s: found GPIO Line %d, PTT Button\n",FUNCTION,offset);
t=millis();
found=TRUE;
// Map PTT to MOX and store PTT io state there for debounce.
if(t<switches[MOX].switch_debounce) {
return;
}
switches[MOX].switch_debounce=t+50; //settle_time;
PROCESS_ACTION *a=g_new(PROCESS_ACTION,1);
a->action=MOX;
a->mode=value?PRESSED:RELEASED;
g_idle_add(process_action,a);
found=TRUE;
}
}
if(found) return;
end
actions.c.txt actions.h.txt gpio.c.txt
EDIT: updated with debounce logic added for PTT
I wired up a speaker/mic and trying to get the PTT pin to function. The GPIO pin is responding fine.
In the Makefile I uncomment the PTT_INCLUDE=PTT definition. PTT is defined to my pin of choice in gpio.c (12 in my case). Start a build and getting 2 errors: