The external voltage monitor solution should guard against a true brownout or power loss. Sot 23 package size, low cost.
But if one tries to assert the reset with less than recommended voltage, results are not guaranteed, I have proven that! ;,( Note that other (more expensive?) msp430's have SVS - supply voltage supervisor - built in. Others have found the same problem we have. John Gilbert On Tue, 8 Oct 2002, Matthias Weingart wrote: > On Tue, Oct 08, 2002 at 11:56:43AM -0700, [email protected] wrote: > > Why wouldn't you connect the output of the voltage monitor (MAX809, > > FM809, TCM809, etc.) to the *RESET line of the MSP430? When the power > > drops below the monitor level (say 2.9 V for a 3.3V system) the *RESET > > is held low until power returns. > > > > Are you seeing this in ALL flavors of MSP, or just older (2.7 -5.5V) > > parts? > > Sometimes a pin-reset does not work, seems to be a real brownout condition > (or another problem here ;-(. It is with a current MSP (1121). > > Matthias > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > Mspgcc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/mspgcc-users >
