In SX Microcontrollers, SX/B Compiler and SX-Key Tool, capdiamont wrote:

[img]http://www.futurlec.com/Pictures/TTL_5V_RS232.jpg[/img]
is the rs232 mini module [url]http://www.futurlec.com/Mini_RS232_TTL_5V.shtml[/url]

[img]javascript:popitup('../Pictures/ET-MINI_DS1307_600.jpg')[/img]
is the 1307 mini module [url]http://www.futurlec.com/Mini_DS1307.shtml[/url]

code is attached(I think).

Tomorrow I'll take a photograph of the setup

VDD from sx48 proto board goes to VCC on both mini modules
VSS from sx48 proto board goes to GND on both mini modules
RA.0 goes to TX0 of RS232 mini module
RA.1 goes to RX0 of RS232 mini module
RA.2 goes to SDA of 1307 mini module
RA.3 goes to SCL of 1307 mini module
RB.0 doesn't go to to anything, I monitored it using a multimeter.

RS232 mini module
TX1 is tied to RX1, makes it nice, just have to move the cable from port 0 of max232 to port 1 to do a loopback test.
TXD goes to Pin2 of 9 pin
RXD goes to Pin3 of 9 pin

The jumpers for the resistors on the 1307mini module is set to on(ENA)

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