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rcc init error

bfeixas
Associate II
Posted on July 05, 2010 at 14:59

rcc init error

2 REPLIES 2
swhite2
Associate III
Posted on May 17, 2011 at 13:57

Sounds to me like your external clock (crystal?) circuit has a problem.

You might try reading the

http://www.st.com/stonline/products/literature/an/15287.pdf

.

Posted on May 17, 2011 at 13:57

Pretty much any application of synchronous logic, and a clock, needs a proper POR (Power on Reset) implementation which clamps the reset for a specific period of time AFTER the power supply has stabilized and reached a threshold, and catches brown out conditions. RC circuits always fail to perform when you need them.

Some thing like the Microchip MCP120 works effectively.

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