Search:

Will do it. Thank you Henrik.:eagerness:

I am using PBP 2.6 with microcode studio.

The purpose is to enable port A & B become digital IO. But with this instruction, only PortA.6 & 7 not responded while Porta.5 become MCLR.
According to datasheet, i should access Config1 but PBP...

can anyone advice why setting config1 register for PIC16F88 produce syntax error ?
I want to set FOSC1 & FOSC0 in Config1 register. Refer datasheet page 130.

Thx.

Currently I am using EPIC programmer. Thinking to switch to PIC16f88 with bootloader function. Have gone through bootloader articles but still dont understand. How can i go ? Please advice.

After using MCP23016 for quite sometime, at last i discovered something unusual.
I have been using 2 MCP23016 differentiate by the address to 1 PIC. The task is very easy, read from 1 unit and...

I will use baud rate of 9600. Total distance is estimated 500 meters since i cannot use star topology.

You use UTP, it is unshield - is it okay ? how about other noise ?

I am thinking that, may...

Ooops, i missed out the diagram..

Thanks for the information. Get better understanding.
1. If i still use 75176, do you think the attach circuit will work ?

2. Do you think if should isolate the line as in the attachment if the...

I want to use 75176 for RS 485 network with over 50 devices. However it is mentioned that the maximum devices i can connect in a network is 32. Is it possible to increase the number to more than 32 ?...

Surprisingly, it works when i removed the capacitor. Resistor remains 3.9K.
The code also works fine with or without the capacitor.

Thanks again..

Thanks, i'll try MCP23017.

I know what going on wrong with the code...

3 things been observed :
1. I do not put "$" to determine the address in HEX
2. Before initializing MCP23016, it need...

I took longer time to try out with MCP23016 because i am still using shift register to expand the I/O. Last week i decided to try out MCP23016. However it doesn't work, after few days trial & error...

Thanks mister_e. Let me digest the information.

I plan to connect a dot matrix printer to record any event ( periodic temperature reading ) in form of hard copy rather than save it in seeprom.

I need some tips to use PIC to drive printer. Printer requires 8 bits data. What is the data looks like ? It is similar method used to drive LCD ?

thanks

noted. thank you...

I am used to connect serial modem to PIC16F84A. Is it any way i can change to USB modem without changing the PIC ? Do you think USB - serial converter helps ?

Cheers

Do you mean I2Read and I2Write ?
Sorry i am not familiar with it. However i would like to try.

Correct me if i am wrong.
From datasheet,
control 0h and 1h is to read or write to the ports...

Interesting. If it is feasible, why not. However I just checked with our local distributor and they do not have max6957. Perhaps i should keep looking for the availability. I keep that in mind. Thx...

Thx Mackrackit.
It only High and Low I/O. i think shift register would be a good idea. 4 to 8 lines. Bringing total of 128 bit of I/O. Meaning total pin require is 7 ( 4 for address, Clock, Load...

Happy New Year to all....

Currently, i am still using pic16f84a for my project due to smaller size and no special task require. However the only problem is limited I/O. I also plan to migrate to...

Correct me if i am wrong.
PIC16F84 - RA4/TOCK has dual function as I/O port and as clock input to TMR0.
To make it as input; OPTION_REG=OPTION_REG OR %0010000
( set bit 5 as advise in datasheet )

I can't figure what and how bool loader work ? any good reference i can refer to ? Any cpesial code to be used ? in PBP ?

Thanks

Just wonder, when we use manchester code ?
:-P

Got the concept. Thx guys !!!! :-p