programming microcontroller

Ankit,

This is typically possible. For which family of MCU's are you referring to?

A wiki for the 430 can be found here:

http://processors.wiki.ti.com/index.php/BSL_(MSP430)

-Jason

Yes.

In this link, they are using arduino as a programmer.

http://hackaday.com/2009/07/15/avr-isp-programming-via-arduino/

Bye.

While not really a microcontroller, I've programmed FPGAs with microcontrollers using JTAG. It takes a while to get a hang of navigating the JTAG state machine, but it's a lot more powerful and flexible than a typical bootloader. You can easily bit-bang the JTAG ports with a reasonably fast MCU, I think anything more than a few MHz would do it.

Information for JTAG on MSP430

http://www.ti.com/lit/ug/slau320d/slau320d.pdf

An introduction to JTAG programming

http://www.fpga4fun.com/JTAG.html

Tony

TonyKao said:

You can easily bit-bang the JTAG ports with a reasonably fast MCU, I think anything more than a few MHz would do it.

However, the 'high level' commands (and the data to be written) come from the PC in this case. But it could as well be an SD card with the new firmware etc.

i am doing programming..i have error at 1 point? can u tell me why i have error

#include <p18f4580.h>
#pragma config WDT = OFF
#pragma config OSC= IRCIO67
#pragma config PWRT=ON
#pragma config LVP=OFF
void EE_WRT(void);
unsigned char EE_READ(void);
void Delay(unsigned int itime);
void main()
{
unsigned char x;
TRISB=0;
EEADR=0x0;
EEDATA='Y';
EE_WRT();
EECON1bits.WREN=0;
EECON1bits.RD=1;
EEADR=0x0;
x=EE_READ();
PORTB=x;

}
void EE_WRT()
{
EECON1bits.EEPGD=0;
EECON1bits.CFGS=0;
EECON1bits.WREN=1;
INTCONbits.GIE=0;
EECON2=0x55;
EECON2=0xAA;
EECON1bits.WR=1;
INTCONbits.GIE=1;
While(!PIR2bits.EEIF);.................................................. i have error here
PIR2bits.EEIF=0;
}
unsigned char EE_READ()
{
EECON1bits.EEPGD=0;
EECON1bits.CFGS=0;
EECON1bits.RD=1;
return(EEDATA);
}

Anurag Saha said:

i have error at 1 point

You actually have several "errors".

Your first error is that you have "hijacked" this thread; ie, you have posted in a thread having nothing whatsoever to do with your question!

You need to start your own, new thread with your unrelated question.

Anurag Saha said:

While(!PIR2bits.EEIF);.................................................. i have error here

Your second error is that you haven't given any details whatsoever of what error you have at that point!

The tools give error messages to identify what the error is and, thus, how to fix it!

Read the text of the message(s) carefully, and think about what it's telling you - this should show you how to fix the error.

If you still need further help, start a new thread and post the full text of the error message - use copy & paste; do not manually re-type it. 

Andy Neil said:

start a new thread

http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/t/225435.aspx