PIC to serial with visual basic

[sougata]

Hi,

Here is a portion from the PBP manual

Since the serial reception is done in hardware, it is not possible to set
the levels to an inverted state to eliminate an RS-232 driver. Therefore
a suitable driver should be used with HSERIN.

Any idea what this means ? I don't know or may be I do

Using the hardware pins with a software serial (inverted) works but makes no sense as anyway you don't use the hardware peripheral. So time to spend on MAX or be happy with soft serial.

[skimask]

Hi,

Here is a portion from the PBP manual


Any idea what this means ? I don't know or may be I do

Using the hardware pins with a software serial (inverted) works but makes no sense as anyway you don't use the hardware peripheral. So time to spend on MAX or be happy with soft serial.

Sure ya do. HSERIN/OUT uses the UART, which is monitored by PBP for input/output. So you need the correct RS232 voltages...