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using rs232 with internal osc is problematic (its not stable enough )
u should use external xtal .
i suggest to use a oscilloscope to check bit time (send 0xAA in loop)
y
eeprom addressing c code language
u can use union in C
to convert float to 4 (i think) bytes array
so u can store the data char by char to the EEprom
the same union can be in use to retrieve the float
yuv
keypad 922
Yes
u shuld connect DA to your uC
so u can detect key press/release
let's say you hit twice "1" key
only the DA will change after releasing, pressing again
see timing diagram in DS
yuv
8085 microprocessor interface
usually
it's better to use uC with internal flash memory
like 89c52 or pic18...
design using internal flash memory reduse # of component & pcb size
(& price)
yuv
EM: yaharoni at 013.net.il
usb Web Camera...
I'm not sure that what u want
but i wrote app that gets the win handle which show the image (from the camera)
from the win I have copy the BMP to my app
it's more complicated & it may not work
but it is possibility
yuv
I wrote BCB app for win 2000
to access the COMx port I used:
sprintf(szCOMport, "COM%d", ComPortNr); // port file name
hComm = CreateFile(szCOMport,
GENERIC_READ | GENERIC_WRITE,
0,
0,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL ,//...
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