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I am using 16F689 to build 2 boards to test the I2C operation but found that it is not working.

Master

#include <16F689.h>
#device *=16
#device adc=8

#FUSES NOWDT
#FUSES MCLR, HS, NO ...

What will be instruction being executed after sleep() command and being wakeup by the watchdog timer? The first instruction (all variables will be reset) or the instruction after the sleep() command? ...

Thanks

Thanks PCM Programmer.

I know how to use i2c_state() but I need to write the first read data after i2c start to location 0, second data to location 1 and so on.. The master will then send i2c stop. ...

We need to setup a slave I2C to send a sequence of data or read a sequence of data after a I2C start. As we need to read / write from a starting position we need to reset the pointer to the first loca ...

I need to set up a slave mode I2C. The device need to send out a character according to the character the master device sends

I don't know is the i2c_write() should follow immediate after the i2c_r ...

#include <12f675.h>
#device adc=8

#FUSES NOWDT
#FUSES INTRC_IO, PROTECT
#use delay(clock=4000000)

#use rs232(baud=9600,parity=N,xmit=PIN_A4,rcv=PIN_A2,bits=8, INVERT, s ...

I need to have a program to read a ADC value from AN1. The following is part of my program and it works.

#include <12f675.h>
#device adc=8

....

main()
{
int advValue; ...

I have a problem with port c. I need to set RC0 and RC3 to high. I am using

output_high( PIN_C0); output_high( PIN_C3);

Unfortunately both C0 and C3 are still low.

Any idea?

Rgds.

Is there a Pic16 chip the pin assignment is the same as 18F1220?

Rgds.

Anyone has know how many RAM and ROM is required to implement a simple TCP/IP client by using the driver and example codes in this development kit?

I am planning to use a smaller pic for this proje ...

I have a RS232 device that need to send the data via lan to a pc in the same lan. A program is running on the pc as a server that listern to a specific port.

Is there any existing (low price) hardw ...

I am using the internal eeprom of the chip to store data and found that very high percentage (> 10%, 3 in 20 chips) are corrupted after very short running time (around 1 month). The eeprom data sto ...

Any informatin on how to modify this code to work for SD card?

Rgds

Thnaks for the advise.

BOD is not suitbale for my design because it will use 109 uA at 5V which is far too much for my power budget.

I put 2 1N4148 to drop the voltage from 6V to 4.8V.