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rodrigo_cirilo
Joined: 31 Mar 2019
Posts: 43
Location: Sao paulo/Brazil
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| 10F222 sleep/wake up Help !! |
 Posted: Thu May 23, 2019 1:27 pm |
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Please, I humbly ask to help colleagues for a problem I can not solve.
I have this code, which transmits a code (garage control) but after transmitting I want the pic to go into sleep mode to save battery, and when you press a button it will wake up and transmit the code as long as the button is pressed, after releasing the button he goes back to sleep.
| Code: | #include <10F222.H>
#fuses IOSC4,NOWDT,NOMCLR
#use delay(clock=4000000)
#define saida PIN_B0
INT8 DATA[3];
const int16 te = 500; //valor de TE
int8 a;
int x;
int1 chave = true;
//==============================================================================
// rotina geradora de tempo piloto de 23 TE sem transmissão
//==============================================================================
void pilot_period(){
output_low(saida);
delay_us(23*te);
}
//==============================================================================
// rotina geradora do start bit
//==============================================================================
void start_bit(){
output_high(saida);
delay_us(te);
output_low(saida);
//==============================================================================
// rotina geradora de bit '1'
//==============================================================================
}
void bit1(){
output_low(saida); //'1'
delay_us(2*te);
output_high(saida);
delay_us(te);
output_low(saida);
//==============================================================================
// rotina geradora de bit '0'
//==============================================================================
}
void bit0(){
output_low(saida); //'0'
delay_us(te);
output_high(saida);
delay_us(2*te);
output_low(saida);
}
//==============================================================================
// rotina geradora de bits de fim de transmissão
//==============================================================================
void end_period(){
bit0();
bit1();
bit0();
bit1();
}
//==============================================================================
// rotina de envio para saída rf de um byte
//==============================================================================
void envia(int valor){
int b;
for(b=0;b<8;b++){
if(valor&1){
bit1();
}
else{
bit0();
}
valor>>=1;
}
}
void main()
{
while(true)
{
while(!input(pin_B3))
{
for(x=0; x<=50;x++)
{
data[2] = 1;
data[1] = 2;
data[0]=0b01000000; //botão 1 acionado?
pilot_period();// 23 TE desligado
start_bit();//bit de inicio
for(a=3;a>0;a--){ //envia os 3 bytes do serial
envia(data[a-1]);
}
end_period();// envia os bits de finalização 0-1-0-1
output_toggle(pin_b1);
}
output_low(pin_b1);
sleep(); // Here he goes back to sleep.
} |
Please show me by some example, I am a beginner. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19589
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| Posted: Thu May 23, 2019 2:13 pm |
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Understand, that on this chip, the code will _reset_ on a wake.
It'll start again from the beginning.
Test 'restart_cause' at the beginning to see if this is a normal power on, or
wake from sleep. If you need to tell these apart.
At the start of the code, add:
setup_wdt(PIN_CHANGE_FROM_SLEEP);
Then when pin_B3 (or B0 or B1), changes from what it was, the chip will
wake. Since B0 is an output, B1 is the only one that matters. You need to
make sure this is not floating. Gentle pull up resistor on this, and read it at
boot (best to read _all_ the pins). If you don't read a pin, and it was the pin
that triggered the wake, you will not be able to go to sleep again.... |
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rodrigo_cirilo
Joined: 31 Mar 2019
Posts: 43
Location: Sao paulo/Brazil
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| Posted: Fri May 24, 2019 5:25 am |
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| Ttelmah wrote: | Understand, that on this chip, the code will _reset_ on a wake.
It'll start again from the beginning.
Test 'restart_cause' at the beginning to see if this is a normal power on, or
wake from sleep. If you need to tell these apart.
At the start of the code, add:
setup_wdt(PIN_CHANGE_FROM_SLEEP);
Then when pin_B3 (or B0 or B1), changes from what it was, the chip will
wake. Since B0 is an output, B1 is the only one that matters. You need to
make sure this is not floating. Gentle pull up resistor on this, and read it at
boot (best to read _all_ the pins). If you don't read a pin, and it was the pin
that triggered the wake, you will not be able to go to sleep again.... |
I really appreciate your response !!
I ask for kindness if you can exemplify in my code how to do the things you asked for I thank you.
I am lost from where to put each thing, and how to read the pins !! |
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rodrigo_cirilo
Joined: 31 Mar 2019
Posts: 43
Location: Sao paulo/Brazil
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| Posted: Mon Jun 03, 2019 11:28 am |
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| Please someone help me on this issue ?? Also I need internal pull_up |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Mon Jun 03, 2019 12:26 pm |
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Use the forum's search page.
http://www.ccsinfo.com/forum/search.php
Type in: | Quote: | | restart_cause WDT_FROM_SLEEP 10F* |
Set it to: | Quote: | | Search for all terms |
Also, you could skip the 10F*, and just search for:
| Quote: | | restart_cause WDT_FROM_SLEEP |
Then you get threads with example code. See this post by Ttelmah:
http://www.ccsinfo.com/forum/viewtopic.php?t=38277
Because you probably don't have RS-232 implemented, you could
blink an LED 3x if it's a Watchdog wakeup from sleep, or 1x if it's
some other reason. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19589
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| Posted: Tue Jun 04, 2019 7:23 am |
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The idea here is that you try things yourself, and we will _help_. Not
do it for you.
However as an example of waking on B3 changing on your chip:
| Code: |
//existing headers here
#byte latch=getenv("SFR:GPIO")
void main()
{
int8 dummy;
setup_wdt(PIN_CHANGE_FROM_SLEEP); //This will make the chip wake when a pin changes
//This should also default to enabling the pullups
while(input(pin_B3)==0) //While this pin is low
{
for(x=0; x<=50;x++)
{
data[2] = 1;
data[1] = 2;
data[0]=0b01000000; //botão 1 acionado?
pilot_period();// 23 TE desligado
start_bit();//bit de inicio
for(a=3;a>0;a--)
{ //envia os 3 bytes do serial
envia(data[a-1]);
}
end_period();// envia os bits de finalização 0-1-0-1
output_toggle(pin_B1);
}
output_low(pin_B1);
}
//When B3 goes high get here
//Now to go to sleep, I must ensure I have read all pins - do this without changing
//TRIS, by accessing SFR
dummy=latch;
sleep(); // Here he goes back to sleep.
delay_cycles(1); //On most chips a NOP is required after the sleep. Data sheet
//does not say, and since it can't execute the instruction after, probably nbt
//needed
}
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