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Author Topic: 38400 baudrate with 20Mz crystal  (Read 2077 times)
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MicroBox
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« on: November 06, 2010, 06:10:41 18:10 »

I want to send data from PC to mcu pic16F877A with the following code
Code:
define OSC 20

gpsin var portc.7 'rx
gpsout var portc.6 'tx


HH VAR byte
MM VAR BYTE
SS VAR BYTE
ND VAR BYTE
NM VAR BYTE
NMD VAR WORD
WD VAR BYTE
WM VAR BYTE
WMD VAR WORD
AR VAR BYTE[20]

START:
SERIN2 gpsin,16572,[WAIT("$GPGGA"),WAIT(","),DEC2 hH,DEC2 mM,DEC2 sS,_
WAIT(","),DEC2 ND,DEC2 NM,WAIT("."),DEC3 NMD,WAIT(",N,"),_
DEC3 WD,DEC2 WM,WAIT("."),DEC3 WMD]

PAUSE 1000

SEROUT2 gpsout,16572,[DEC2 HH,DEC2 MM,DEC2 SS,_
DEC2 ND,DEC2 NM,DEC3 NMD,DEC3 WD,DEC2 WM,DEC3 WMD,13,10]
goto start

I got no luck in the receiving window(hyperterm) when entering $GPGGA,114708.600,1114.5089,N,12500.3864,E,1,6,1.6 7,23.5,M,55.4,M,,*69, what do I'm missing?

thanks in advance,
microbox
« Last Edit: November 06, 2010, 06:19:47 18:19 by MicroBox » Logged
bbarney
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« Reply #1 on: November 06, 2010, 06:51:59 18:51 »

your already talking to the best people for this so how many forums are you going to ask the same question ?
« Last Edit: November 07, 2010, 05:31:47 05:31 by bbarney » Logged

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MicroBox
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« Reply #2 on: November 07, 2010, 12:49:05 00:49 »

Hi, my apology for being impatient, just got a little frustrated with the GPS I bought, it was running fine for 3 days with the code I have and settings. I was not even done with testing to have it final. I been working on it the entire week. Only to find out it reset it self to its factory settings with a baud rate of 57600.
Pls. accept my apology. this will not happen again.

regards,
microbox
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bbarney
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« Reply #3 on: November 07, 2010, 05:31:24 05:31 »

Hi, my apology for being impatient, just got a little frustrated with the GPS I bought, it was running fine for 3 days with the code I have and settings. I was not even done with testing to have it final. I been working on it the entire week. Only to find out it reset it self to its factory settings with a baud rate of 57600.
Pls. accept my apology. this will not happen again.

regards,
microbox

There was no harm asking here i just wondered why when you already had asked in the best place for answers in this case
They have some really great people there who've been there and done that
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MicroBox
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« Reply #4 on: November 07, 2010, 09:50:40 09:50 »

 8)I got my simple code running.
Code:
@ DEVICE HS_OSC
DEFINE    OSC 20
main:

serout2 PortC.6,32774,["To PC",$D]  ;@38400 To PC
serout2 PortB.6,84,[$1B,$45]
serout2 PortB.6,84,["To LCD"] ;@9600 To Lcd
pause 500

goto main
end

regards,
microbox
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bbarney
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« Reply #5 on: November 07, 2010, 01:44:09 13:44 »

Good ,glad you got it working
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