Search found 16 matches

Thanks for the replies,

The problem turns out to be a possible problem with the STATUS register not being set correctly when returning from sleep. If I declare cycle and radiostatus as global vari ...

I've just trimmed my code to the minimum as suggested by PCM Programmer and the WDT sleep function now works, I need to investigate this further.

Thanks. Embarassed

Hi, but surely m_bufferPtr will just overflow back to zero after hit 255 ?

Also m_buffer is 64 bytes large and we don't put that much data in each time, after the code is parse (not shown) we reset ...

derr I'm not being to bright am I, radiostatus is set to 2 in MAIN but I've missed that out, sorry.

cycle increments at near the bottom of the code.

I'm using the variable twice, for count up to enter the sleep section and then counting down to zero to exit the sleep section.

can a moderator please clean up this reply, the BBS has got a bit screwed and keeps telling me DEBUG MODE post failed.

Hi, heres some more code, compiler is 4.057

#include <16f88.h>
#include <string.h>

#fuses HS,WDT,NOPROTECT,PUT,NOBROWNOUT,NOLVP
#use delay(clock=20000000)
#use rs232( ...

Hi, heres some more code, compiler is 4.057

#include <16f88.h>
#include <string.h>

#fuses HS,WDT,NOPROTECT,PUT,NOBROWNOUT,NOLVP
#use delay(clock=20000000)
#use rs232( ...

Hi, heres some more code, compiler is 4.057

#include <16f88.h>
#include <string.h>

#fuses HS,WDT,NOPROTECT,PUT,NOBROWNOUT,NOLVP
#use delay(clock=20000000)
#use rs232( ...

Hi,

I'm having a weird problem, I think it may have something to do with a stack getting full, the code below prints 'POL' three times before getting stuck in a do while(true) loop used in MAIN (th ...

thanks for the replies, we'll use the H/W USART and invert the input as low power operation at the receiver isn't too critical.

Simon
http://www.simat.org.uk

If I use the 'INVERT' function should the ISR still fire ?

I'm receiving inverted data on B0 of a 16F628A (s/w USART), I need this to fire an interupt - read the data is, parse it and then send it ...

Hi,

Does anybody know if #use RS232 will support the INVERT function for receiving data ? , I know it works for transmission.. The data is going over a radio so I'm hoping not to have to use a H/W ...

opted for the slightly slower version from Dallas Appnote 27

void docrc16 (int8 newbyte)
{
int crc_lo;
int crc_hi;

#byte STATUS = 0x03
#locate CNTR = 0xB8

...

Hi ckielstra,

Thanks for the reply, i've tried the routine with the #byte lines removed and manually setting the crc_lo and crc_hi just for a test and still get the same output.

If CRC16 = 0 and ...