I have all the schematic and key component
data sheets in the link below.
Anyone with technical background can draw
his or her own conclusions.
Here is my own:
Due to a hardware bug in the micro-
controller used, GPIO can not be used(X10
confirmed this, they are not using GPIO), a
new version of the chip “Encore II” it’s
not backward compatible. The external
memory used to store macros, is 2 wire
serial interface(I2C), the Encore chip does
not have a hardware I2C, this means all
external memory read must be done bit-
banged, the RF receiver needs to be polled
and the PLC interface is else polled. There
is no way that this processor can possibly
receive an RF signal while is transmitting
PLC commands; in one of my test while the
CM15a was sending a series of Dim commands
I send an RF signal via palm remote, it
crashed every time. In some application it
may barely work and could be satisfactory
to some customers, but any one that uses
complex macros + RF ( motion detector
etc..) he or she will have problems. Now
for the hopeful if you have a TM751 or an
RR501, try holding the palm remote dim
button, both transceiver will lock up and
need to be unplugged to reset them; in
order to fix the transceivers (RR501 and
TM751) a simple activation of the built in
Watch-Dog timer will fix them (a very
simple firmware changes); if X10 never
fixed the RR501 and the TM751 (practically
a no cost fix) does anybody believes that
X10 will fix the hardware and than be
forced to recall all CM15a?
http://members.shaw.ca/cm15a- info\CM15aSchematic.zip