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Author Topic: Q&A sa CCS C  (Read 7219 times)

Offline clarkent

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Re: Q&A sa CCS C
« Reply #60 on: March 04, 2009, 03:44:11 PM »
hmmm.... bakit kaya di gumagana sakin. natry mo mismo sa proteus sir? pagnagkkey-in ka ng a b c tlgang umiilaw yung corresponding led?
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Re: Q&A sa CCS C
« Reply #60 on: March 04, 2009, 03:44:11 PM »

Offline marcelino

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Re: Q&A sa CCS C
« Reply #61 on: March 04, 2009, 03:51:48 PM »
Quote from: clarkent on March 04, 2009, 03:44:11 PM
hmmm.... bakit kaya di gumagana sakin. natry mo mismo sa proteus sir? pagnagkkey-in ka ng a b c tlgang umiilaw yung corresponding led?

yeah! :)
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Re: Q&A sa CCS C
« Reply #61 on: March 04, 2009, 03:51:48 PM »

Offline clarkent

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Re: Q&A sa CCS C
« Reply #62 on: March 06, 2009, 11:09:45 AM »
gumagana na!!!hehe
nalagyan ko pala kasi sa void main(){ ng set_tris_b(0); kaya di gumagana.hehe
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Re: Q&A sa CCS C
« Reply #62 on: March 06, 2009, 11:09:45 AM »

Offline marcelino

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Re: Q&A sa CCS C
« Reply #63 on: March 06, 2009, 11:30:32 AM »
Quote from: clarkent on March 06, 2009, 11:09:45 AM
gumagana na!!!hehe
nalagyan ko pala kasi sa void main(){ ng set_tris_b(0); kaya di gumagana.hehe

may naobserbahan ako sa CCS.

di ba sa hitech, palagi nating siniset ang tris at initial values ng port.

sa CCS, kung wala ka lang naman exquisite na gagawin, wag mo nang lalagyan ng set_tris_x().  ang compiler na ang bahala nyan!
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Re: Q&A sa CCS C
« Reply #63 on: March 06, 2009, 11:30:32 AM »

Offline clarkent

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Re: Q&A sa CCS C
« Reply #64 on: March 07, 2009, 09:26:54 AM »
ganun ba sir kahit na gagamitin mong input ang ibang pins? say RA4 as input. hindi na natin lalagyan nito

set_tris_a(0b00010000);
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Re: Q&A sa CCS C
« Reply #64 on: March 07, 2009, 09:26:54 AM »

Offline marcelino

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Re: Q&A sa CCS C
« Reply #65 on: March 07, 2009, 10:04:55 AM »
Quote from: clarkent on March 07, 2009, 09:26:54 AM
ganun ba sir kahit na gagamitin mong input ang ibang pins? say RA4 as input. hindi na natin lalagyan nito

set_tris_a(0b00010000);

yeah!

ano yung code mo?
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #66 on: March 07, 2009, 10:07:01 AM »
wala pa naman sir. naisip ko lang na what if gahamit ako ng input, syempre dapat ispecify sa code.hehe
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Offline marcelino

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Re: Q&A sa CCS C
« Reply #67 on: March 07, 2009, 10:09:44 AM »
Quote from: clarkent on March 07, 2009, 10:07:01 AM
wala pa naman sir. naisip ko lang na what if gahamit ako ng input, syempre dapat ispecify sa code.hehe

basta ang CCS na ang bahala nyan...

ang di ko lang alam kung ano yung ginawa ng CCS dun sa settings ng pins na yun.... pwede siguro tong itrace sa .LST. kaso di ako magaling sa assembly.

pero kahit nga mahahaba na ang ginagawa ko, di pa ako gumamit nyan. ang nagwowork naman.
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #68 on: March 07, 2009, 10:25:13 AM »
hehe... the last time kasi na nagtry ako ng uart using f628a at nagconnect ako ng leds sa porta, hindi yun umilaw, pero nung nilagay ko yung set_tris_a(0); gumana na sya.
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #69 on: March 08, 2009, 07:46:20 PM »
papano po gamitin ang #int_rda ng CCSC?

pwede pong papost ng sample codes?
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Offline marcelino

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Re: Q&A sa CCS C
« Reply #70 on: March 08, 2009, 07:55:53 PM »
Quote from: clarkent on March 08, 2009, 07:46:20 PM
papano po gamitin ang #int_rda ng CCSC?

pwede pong papost ng sample codes?

Code: [Select]
char c;
short rda_flag;

#int_RDA
void RDA_isr (void)
{
c=getc();
rda_flag = TRUE;
}

main(void)
{
enable_interrupts(int_RDA);
enable_interrupts(GLOBAL);
while(true)
{
if (rda_flag)
{
disable_interrupt(int_RDA);
rda_flag = TRUE;
if (c=='M')
{
printf("marcelino pogi\r");
}
}
}
}
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #71 on: March 08, 2009, 08:03:19 PM »
isa pang tanong sir marce, how will the int_rda be triggered? pwede ba tong matrigger using an input pin of an MCU. kunwari may pinindot kang push button tapos mattrigger na ang int RDA.
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Offline marcelino

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Re: Q&A sa CCS C
« Reply #72 on: March 08, 2009, 08:40:27 PM »
Quote from: clarkent on March 08, 2009, 08:03:19 PM
isa pang tanong sir marce, how will the int_rda be triggered? pwede ba tong matrigger using an input pin of an MCU. kunwari may pinindot kang push button tapos mattrigger na ang int RDA.

hindi...

ayon sa natutunan ko kay master Zerowing, natitirigger ang RDA kapag may may pumasok na signal (ascii character). rda stands for received data available. kaya nga may nilagay akong flag (rda_flag) nakung saan nagiging TRUE lamang kapag may RDA.

kung may pipindutin kang buttom, mas maigi na gamitin mo yung RB(4:7) o kaya yung RB0.
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #73 on: March 09, 2009, 12:36:04 PM »
nyahaha! sori sir marce, mali yung pagkakaintindi ko nung receive dat available.hehe

so ang magttrigger po pala ng rda is itong keyboard mismo?



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Offline marcelino

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Re: Q&A sa CCS C
« Reply #74 on: March 09, 2009, 01:09:03 PM »
Quote from: clarkent on March 09, 2009, 12:36:04 PM
nyahaha! sori sir marce, mali yung pagkakaintindi ko nung receive dat available.hehe

so ang magttrigger po pala ng rda is itong keyboard mismo?

di naman necessarily keyboard. aking nga, XBEE module or GSM modem. ;D

basta ba may data...

nga pala, ayon din sa natutunan ko kay master Zero, per character ang pagrereceive ng UART module ng PIC. nung una akala ko isang malaking string. bagamat nagwowork naman ang gets(), mas maiging wag mo masyadong gagamitin sa loob ng RDA_isr. kasi triggered na kaagad ang RDA routines sa kahit isang character lamang.

halimbawa, ang nareceive na data ng UART module is "pogi". apat na characters(actually lima or anim, return = 0x0D at space = 0x0A ay kadalasang kasama). ibig sabihin, apat na bese din natrigger ang RDA.

So mas maganda sa pagParsing ng receive string, gamitin mo pa din yung getc(), tapos may buffer nalang na nag-iipon nung string.
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #75 on: March 16, 2009, 11:04:07 AM »
how do you test a bit from the status register using CCSC? say, gusto kong malaman kung naapektuhan ng isang operation yung DC,Z or C ng STATUS.
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Offline marcelino

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Re: Q&A sa CCS C
« Reply #76 on: March 16, 2009, 11:50:53 AM »
try mo nga to kit...

Code: [Select]
//sa definitions
#bit Z 0x03.2
#bit DC 0x03.1
#bit C 0x03.0

tapos...

if (Z==true) output_high (pin_a0);
if (DC==true) output_high (pin_a1);
if (C==true) output_high (pin_a2);

experiment lang... :)
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #77 on: March 16, 2009, 01:00:48 PM »
^ natest mo na po yan sir marce?hehe
pogi mo.
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Offline marcelino

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Re: Q&A sa CCS C
« Reply #78 on: March 16, 2009, 01:23:08 PM »
Quote from: clarkent on March 16, 2009, 01:00:48 PM
^ natest mo na po yan sir marce?hehe
pogi mo.

di pa.... hehehe ;D
kaya nga experiment eh :D

para magawa natin yan, dapat siguruhin natin na may alam tayong operation na kung saan mag-oOn yang mga flags na yan.
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Offline clarkent

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Re: Q&A sa CCS C
« Reply #79 on: March 16, 2009, 02:02:28 PM »
nyaaaaaa!!!!
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Re: Q&A sa CCS C
« Reply #79 on: March 16, 2009, 02:02:28 PM »
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