tree 8a3fae4fb6ced7f0ec68ce1a4f401364927e9812
parent 89f09245bc3e3669420ed982c7f18f365b9f5e15
author Tim Edwards <tim@opencircuitdesign.com> 1601929824 -0400
committer Tim Edwards <tim@opencircuitdesign.com> 1601929824 -0400

Added a simple power-on-reset circuit with schmitt trigger output, and
decoupled the reset pin from the porb/porb_h.  The reset for the
housekeeping SPI remains connected to porb and not the reset pin, so
that the processor can be put in reset but the housekeeping SPI can
be accessed in that state.  That prevents the user from bricking the
system by having a program override the housekeeping SPI and then get
into an erroneous state.