GALA is not supported

[tomaskovacik]

pin 23 of moto MCU

probably pulses, need to be tested in car ...

https://translate.google.com/translate?hl=&sl=de&tl=en&u=http%3A%2F%2Fwww.vwpolo6n.de%2Ftipsundtricks%2Finfos%2Fgeschwindigkeitssignal.htm

[tomaskovacik]

gala is square wave duty 50% based on testings:

GALA=1

for GALA set to 1 (start radio with TP button switched) going from ~20Hz up I get these changes in volume/loudness

freq(Hz)	volume	loudness
up
start	4E	B
105	4C,4A
135		A
167	48,46
196		9
217	44,42
250		8
286	40,3E
308		7
down
286	8
256	42
220	9
197	46
178	A
149	4A
119	B
93	4E

GALA=2

freq(Hz)	volume	loudness
up
start	4E	B
85	4C,4A
114	A
143	48,46
169	9
206	44,42
232	8
263	40,3E
312	7
down
256	8
222	42
204	9
178	46
154	A
126	4A
98	B
71	4E

GALA=3

freq(Hz)	volume	loudness
up
start	4E	B
68	4C,4A
96	A
126	48,46
154	9
189	44,42
217	8
244	40,3E
278	7
down
238	8
217	42
185	9
164	46
137	A
110	4A
82	B
55	4E

GALA=4

freq(Hz)	volume	loudness
up
start	4A	B
78	A
107	48,46
137	9
169	44,42
196	8
222	40,3E
down
192	42
174	9
149	46
116	A
92	4A
65	B

GALA=5

freq(Hz)	volume	loudness
up
start	52	C
39	50,4E
68	B
92	4C,4A
126	A
156	48,46
189	9
222	44,42
250	8
down
213	9
185	46
161	A
137	4A
110	B
82	4E
54	C

[tomaskovacik]

velocity goes up:
gala	V=4A	L=A	V=46	L=9	V=42	L=8	V=3E	L=7
1	105	135	167	196	217	250	286	308
2	85	114	143	169	206	232	263	312
3	68	96	126	154	189	217	244	278
4		78	107	137	169	196	222
5	39	68	92	126	156	189	222	250
velocity goes down:
gala	L=8	V=42	L=9	V=46	L=A	V=4A	L=B	V=4E	L=C
1	286	256	220	197	178	149	119	93
2	256	222	204	178	154	126	98	71
3	238	217	185	164	137	110	82	55
4		192	174	149	116	92	65
5			213	185	161	137	110	82	54

this will be implemented: the increment will be 30km/h up and down, the value of GALA(0-5) will affect starting speed at which automatic increment happens the first time

velocity goes up:
gala	V=4A	L=A	V=46	L=9	V=42	L=8	V=3E	L=7
1	100	130	160	190	220	250	280	310
2	80	110	140	170	200	230	260	290
3	70	100	130	160	190	220	250	280
4	50	80	110	140	170	200	230	260
5	40	70	100	130	160	190	220	250
velocity goes down:
gala	L=8	V=42	L=9	V=46	L=A	V=4A	L=B	V=4E	L=C
1	280	250	220	190	160	130	100	70	40
2	260	230	200	170	140	110	80	50	20
3	250	220	190	160	130	100	70	40	10
4	230	200	170	140	110	80	50	20
5	220	190	160	130	100	70	40	10

the default setting will be: start volume = 3 (4E) gala=3 (starting speed 70km/h)

this could be changed by starting radio in config mode (pressed and held TP button while powering on the radio), then cycling over the config using TP button, SW will automatically set start volume and gala value based on what will be displayed)

[tomaskovacik]

start speed calculation (I made up): 120-(0xF*GALA):

GALA	START
1	104
2	88
3	72
4	56
5	40

GALA	1
	speed	volume	loudnes
start	104	78	11
HEX:		4E	B
ID	0	1	2	3	4	5	6	7	8
speed	104	134	164	194	224	254	284	314	344
V	-4	0	-4	0	-4	0	-4	0	-4
L	0	-1	0	-1	0	-1	0	-1	0
[V]	74	74	70	70	66	66	62	62	58
[L]	11	10	10	9	9	8	8	7	7
[V(hex)]	4A	4A	46	46	42	42	3E	3E	3A
[L (hex)]	B	A	A	9	9	8	8	7	7

[tomaskovacik]

speed emulation is made using atmega328 and this Arduino code, it is basic square wave emulator. Frequency can be changed over the serial port.

https://github.com/tomaskovacik/arduino/tree/master/wavegen

[tomaskovacik]

config menu is sent to display as standard TEXT:

    //TEXT: VOL  1->...->5
    //TEXT: SENS LO
    //TEXT: RM   ON 
    //TEXT: NAV  1->...->5 
    //TEXT: TEL  L 
    //TEXT: TA   1->...->5 
    //TEXT: GALA OFF->1-...->5

[tomaskovacik]

measuring width of pulse on stm32 works on pin PA0 like this:

#define GALA PA0
volatile uint16_t captime; // timer count of low pulse (temp)

void TIMER2_ISR()
{
  if ( Timer2.getInputCaptureFlag(TIMER_CH2) && !captime ) // period end
  {
    captime = Timer2.getCompare(TIMER_CH2);//ICR1; // save a copy of current TMR1 count

   }
 }

void setup(){
pinMode(GALA,INPUT_PULLUP);
 Timer2.pause(); // pause timer 2
 //timer2 for GALA:
 Timer2.setPrescaleFactor(72); // 1 microsecond resolution
 // setup timer 2 channel 1 capture on rising edge
 Timer2.setInputCaptureMode(TIMER_CH1, TIMER_IC_INPUT_DEFAULT); // use default input TI1
 // setup timer 2 channel 2 capture on falling edge
 Timer2.setInputCaptureMode(TIMER_CH2, TIMER_IC_INPUT_SWITCH); // use switched input TI1
 Timer2.setPolarity(TIMER_CH2, 1); // trigger on falling edge
 // counter setup as slave triggered by TI1 in reset mode
 Timer2.setSlaveFlags( TIMER_SMCR_TS_TI1FP1 | TIMER_SMCR_SMS_RESET );
 Timer2.refresh();
 Timer2.getCompare(TIMER_CH1); // clear capture flag
 Timer2.getCompare(TIMER_CH2); // clear capture flag
 Timer2.attachInterrupt(TIMER_CH2, TIMER2_ISR); //ch1 is rising edge, it's after low pulse, which we need to process while high pulse ocure...
  Timer2.resume(); // let timer 2 run
}

void loop(){
 if (!captime) {
   Serial.print("Speed=");
   Serial.print((float)1000000 / (2 * captime));
   Serial.println("km/h");
   captime = 0;
 }
}

but this will not work for V1, so I change it to standard interrupt:

//use PA14 for V1 board
#define GALA PA14 //SWDCLK pin, exposed on version one boards
//PA0 for V2
//#define GALA PA0
volatile uint16_t captime; // timer count of low pulse (temp)

void gala_up(void) {
    Timer2.resume(); // let timer 2 run
    //detachInterrupt(digitalPinToInterrupt(GALA));
    attachInterrupt(digitalPinToInterrupt(GALA), gala_down, FALLING); //
}

void gala_down(void) {
  Timer2.pause();
  //detachInterrupt(digitalPinToInterrupt(GALA));
  captime = Timer2.getCount();
}

void setup(){
pinMode(GALA, INPUT_PULLUP);
  Timer2.setPrescaleFactor(72); // 1 microsecond resolution
  Timer2.refresh();
  Timer2.setCount(0);
  attachInterrupt(digitalPinToInterrupt(GALA), gala_up, RISING);
}

void setup(){
  if (captime>0) {
    Serial.print("Speed=");
    Serial.print((float)1000000 / (2 * captime));
    Serial.println("km/h");
    Timer2.setCount(0);
    captime=0;
    attachInterrupt(digitalPinToInterrupt(GALA), gala_up, RISING); //
  }
}

[tomaskovacik]

hopefully 4e7bda1ff9f302e4176b3303eb5a1d47f9de1e90 fix this, but it needs to be tested in the car!

for version 1.0 of HW, 1k resistor needs to be put between the CLK pin of the ST-LINK connector and the gala signal in radio, resistor R2304 as showed in picture