bootloader does not work..

[skimask]

hello you all...
I'm trying to make the Tiny bootloader to work but all I get is the same error:
Connected to \\.\COM1 at 115200
Searching for PIC ...
pic sending unknown data: "K" <> F0h=ð
Check baudrate & Start Write while PIC is not sending serial data (e.g. in reset)
i've tried changing baudrate and etc.. i'm using a 20mhz xt, pic 16f88 ... does anyone can help me?
thanks in advance...
Sylvio

Could be that you have a load of tangerines stuck in your differential fluid?
We'll never know...can't see any code, don't see any schematic...don't know if you're using a PC, Mac, Palm, Cell Phone, or a bank of switches...

[sirvo]

sorry.. again, ok?

i'm using a pic16f88, with an external crystal of 20MHz. The RX ad TX pins are connected throught RS232. This one is connected at COM1 of my windows XP. I cant get it to work. Could you help me?

as i wrote on the first topic, pic is sending some data.. so i think the problem is in the code..

The code is attached..

Thanks..

[dhouston]

How are TX & RX connected? PC TX -> PIC RX and vice versa.

[sirvo]

i've solved that problem.. and now i'm getting something new..:

Connected to \\.\COM1 at 115200
HEX: 5 min old, INHX8M,16Fcode+cfg, total=136 bytes.
Searching for PIC ...
Found:16F 88
WARNING: PCLATH not initialised before GOTO! ... sucessfully repaired.,
Could not write
ERROR!

does anyone have the same error?

thanks..

[mister_e]

http://www.picbasic.co.uk/forum/show...iny+bootloader

[sirvo]

thanks mister_e..

i have already read this post but nothing helpfull..

dont know what to do to make it to work...

thanks again..

[supratik]

How did you solved the problem of "pic sending unknown data: "K" <> F0h=ð". I have the same problem with tiny bootloader. Plz plz plz help me. I am using PIC 16F877A with 20Mz crystal. Tx and Rx connected to COM1(RS232) of my PC running Windows XP. I got the bootloader code from tiny bootloader, did some modification on processor type, XTAL frequency and Baud rate. I am using MPASM Assembler.