Phoenix problems in PRE 2.1

try selecting ppm options(click the 'PPM' string). Make sure the frame size is 22500.
If you had a previous version that had some options, it won't upgrade properly, but upgrading from a 2.0 model or creating a new model, or selecting the protocol options should all fix the issue.

I do not guarantee seamless upgrades from intermediate hg builds.

Definitely, there is a bug at PPM protocol. With Reflex simulator PPM works only at 10 channel mode. All other modes = no response. Simulator detect number of channels, but used channels have random numbers and not respond to sticks, not used channels have 0 values.

ppmout.c

if(state & 0x01) {
...
...
val = pulses[state / 2]; => pulses[0.5] or pulses[1.5] or ...
...
...
}

static u16 ppmout_cb()
{
static volatile u16 accum;
u16 val;
if (state == 0) {
accum = 0;
build_data_pkt();
}
if(state & 0x01) {
PWM_Set(1);
if(state == num_channels * 2 + 1) {
state = 0;
if (num_channels > 9)
return num_channels > 9
? Model.proto_opts[PERIOD_PW] + (num_channels - 9) * 2000 - accum
: Model.proto_opts[PERIOD_PW] - accum;
}
val = pulses[state / 2]; maybe val = pulses[(state - 1) / 2];
} else {
PWM_Set(0);
val = Model.proto_opts[NOTCH_PW];
}
state++;
accum += val;
return val;
}

It's working for any number of channels.

It's incorrect.

if (num_channels > 9){
return Model.proto_opts[PERIOD_PW] + (num_channels - 9) * 2000 - accum;
}
else{
return Model.proto_opts[PERIOD_PW] - accum;
}

or will be the same

return num_channels > 9
? Model.proto_opts[PERIOD_PW] + (num_channels - 9) * 2000 - accum
: Model.proto_opts[PERIOD_PW] - accum;

should be fixed now.

Yes, it will work, but difficult to read.