| ??? 04/29/05 08:03 Read: times |
#92596 - building my own? Responding to: ???'s previous message |
I looked at a schematics of mcb900 and got an idea how to build a programming cable.
My idea is to build a serial cable that has signals Tx, Rx, Reset and GND on end connector. I would connect that cable to my microcontroler project and do ISP programming. I plan to make just a RS232/3.3 converter + reset circuit. As LPC9xx are 5V tolerant I am thinking of using max 232 and make Tx Rx and Reset on 5V levels. Also my project will work on a 5V (I will connect Vdd of LPC904 in series with a LED which will drop 5 volts to about 3 volts). Can I use Flashmagic with my cable? And what about transistor that switches on/off power for LPC (Vdd) ? Can I leave LPC on permanent power (from my uC project) and still enter programming mode? What about 89c669? Can I use same cable? Are there any special settings in Flashmagic? thank you for help best regards, Damjan |
| Topic | Author | Date |
| Getting started with Philips ISP | 01/01/70 00:00 | |
| Get a Keil MCB900 | 01/01/70 00:00 | |
| yes, for LPC | 01/01/70 00:00 | |
| building my own? | 01/01/70 00:00 | |
| no and no | 01/01/70 00:00 | |
| Some ideas and clarifications | 01/01/70 00:00 | |
| Kanda | 01/01/70 00:00 | |
| WinISP | 01/01/70 00:00 | |
| WinISP | 01/01/70 00:00 | |
a while ago | 01/01/70 00:00 |