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Dear all,
thanks for all comments of you!
Finally, in this case, there are two way:
1. Accept to receive all slave messages and then check to ignore unnecessary message
2. On/Off UART (or enable/d ...

Dear Mr ezflyr!

I know that!
But it still waste a few time to receive all slave respond and then we must check to ignore!

Any better idea? or we must use that way? Receive all then check and ig ...

Hi alan,
It's certainly, I have set the ID for every SLAVE!
But we use only one data bus (line), so all slaves will receive data from another...

Any ideas?

Dear all,
I'm using IEA-RS485 standard for my project.
I connected MASTER to 10 SLAVES.
These SLAVES respond to SERVER automatically based on their time-slot (100 milliseconds) after receiving r ...

Hi hi hi!
Thanks for your response! Mr. Ttelmah and Mr. bkamen.
My data is BYTE type. (8bit)

But with dsPIC, it has no problem!

Dear all,

I am using CCS version 4.017 with PIC18F4620 (1Kbytes of EEPROM).
I try to store my data (array of 16-bit unsigned numbers) to EEPROM.

I declerate 0xA0 for START_ADDRESS
but I only c ...

Hi Mr. Ttelmah!
The third one, This modem can connect directly to microcontroller.
The second one, It also supports autobauding, so we don't need to setup baudrate for it. But I will try to setup a ...

Hi everybody!

I am doing a small project that uses dsPIC and module SIM548C.
I want to interface my PIC with that module.

I use UART1 (baud=19200) port of PIC to do that. You know that, when an ...

Good morning,
Firstly, you have to design the schematic. How to connect ID20 to PIC?

Which pin of ID20 that use to receive tag ID's data?
Then, post your schematic here.
Many people can help you ...

Hi Mr PCM Programmer,
Yes we can.
The interrupt occurs just before each edge (rising or falling) of the
waveform. It has to. You toggle the edge of the signal inside the
interrupt routine.
Yes ...

Good afternoon,

'Cos we toggle pin E4, so the waveform is in the square shape.
Minimum voltage =0 and maximum one = 5V.

So, we can't determine where the interrupt timer1 occur? Smile

I have rea ...

Thanks Mr.PCM,

I have tried your method to determine overflow time of TIMER1 (dSPIC)
It's so good with nice result on my oscillator.

This is my code to test

#include<30F6010A.h>

#FU ...

Follow me,

timer1_over = (8*4096)/(8*10^6) = 4096*10^(-6) s = 0.4096 ms

Hi all,
I want to use TIMER1 of dSPIC30 to measure DC Current.
I found the way to initialize timer1 as this:

setup_timer1(TMR_INTERNAL |TMR_DIV_BY_8,4096);

Follow this code,
+ Time ...

Use the #org directive to set the start and end address of the main() function.
See the CCS manual.
http://www.ccsinfo.com/downloads/ccs_c_manual.pdf

Thank you very much!
I have fixed my error b ...