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I already ask the supplier about baud rate setting. The baud is 115,200.

I try at this baud rate with the above code, but no work. Anyone has an idea? How should I try this in other way Laughing

This is the hardware link.
http://www.stronglink.cn/english/sl015m1.htm

When I powered 5V to this hardware all pin Rx and Tx are 5V.

I try this code but it's no work. It just stop after display ...

Hai Atomy! Do you have success to interface your 16f877 to Rfid module?
I also want to try that module. Is it ok to start with command to Control Red Led?

Just to get some idea.

Thanks for reply me Very Happy

I'm rellly slow in programming. Thanks for your help before.

Here is one more thing I dont know. After send this data:

unsigned char SendData

the UART hardware ...

Hai! All..

I try to send this command using 877A to uart hardware. Data send from Header to checksum.

Header.....Length....Command....Block.....Checksum
0xBA........ 0x03.........0x05........ ...

Start with your 'putc'. Putc, accepts _one_ character. Your array has characters at locations SelectCard
int8 ctr;

for (ctr=0;ctr<3;ctr++) putc(SelectCard[ctr]);

Th ...

Hi All...

I want to send and receive data using PIC and UART hardware.

The data to send is:

unsigned char SelectCard

I will receive data like this:

byte0,byt1,byte2,byt3,byte4,byte5,byt ...