B
Bart
- Jan 1, 1970
- 0
I'd like to build a handheld unit that will send what is on an EPROM over
RS232 to a PC. I'll program ASCII characters (in binary), one at each
address including line feeds and carriage returns, on the EPROM. A nine volt
battery with a 5 volt voltage regulator will power the unit and drive a 555
clock pulse. A kind of flowchart below has the 555 fire the binary counter
which then fires addresses of the EPROM whose data goes into a shift
register to take the data in and send it out serially to the RS232 driver,
and out to the PC. I'm sure my unfamiliarity shows, is my approach way off?
Any tips/suggestions/help is appreciated.
Thanks in advance,
Bart
- BATTERY
VOLTAGE REGULATOR 5V
CLOCK PULSE (555)
BINARY COUNTER
EPROM
SHIFT REGISTER (SERIAL OUTPUT)
RS232 DRIVER
PC
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)
RS232 to a PC. I'll program ASCII characters (in binary), one at each
address including line feeds and carriage returns, on the EPROM. A nine volt
battery with a 5 volt voltage regulator will power the unit and drive a 555
clock pulse. A kind of flowchart below has the 555 fire the binary counter
which then fires addresses of the EPROM whose data goes into a shift
register to take the data in and send it out serially to the RS232 driver,
and out to the PC. I'm sure my unfamiliarity shows, is my approach way off?
Any tips/suggestions/help is appreciated.
Thanks in advance,
Bart
- BATTERY
VOLTAGE REGULATOR 5V
CLOCK PULSE (555)
BINARY COUNTER
EPROM
SHIFT REGISTER (SERIAL OUTPUT)
RS232 DRIVER
PC
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)