- Wed Mar 15, 2006 7:37 am
#11077
I want to design a in-field programming interface between the prommer (e.g. MSP430-JTAG-ISO) and my device that has (due to space requirements) only 6 pins for programming, which means I have would to omit the Vcc_in and Vcc_out pins.
I read here that the Vcc_ in pin is needed for the prommer to follow the target voltage. I know my target voltage.
My idea was to do the in-field programming with some kind of adaptor.
- both sides are powered independently
- I take power out of Vcc_out
- reduce it to my target voltage
- I feed back into Vcc_in ?
If there is a better solution - maybe different stand alone programmers or programmers that work with the bootstrap loader - any hints welcome !
sincerely
Jens
I read here that the Vcc_ in pin is needed for the prommer to follow the target voltage. I know my target voltage.
My idea was to do the in-field programming with some kind of adaptor.
- both sides are powered independently
- I take power out of Vcc_out
- reduce it to my target voltage
- I feed back into Vcc_in ?
If there is a better solution - maybe different stand alone programmers or programmers that work with the bootstrap loader - any hints welcome !
sincerely
Jens