RS232 hardware configuration // PIC18f452 // picc PCB 4.110

[louwi_138]

Hello,
I configured my pic as PLL active with 10MHz witch make it run at 40MHz
but when I tested the communication it don't work as it should be.
I think that the baud was not well configured.
This is my configuration for the rs232 hardware module:

[Ttelmah]

Just use #use RS232.
Directly setting register is not really the way that CCS is designed to work.

[louwi_138]

[Ttelmah]

You misunderstand #use RS232.....

_If_ you select the hardware pins, it sets up the hardware port. It _only_ switches to being a 'software solution', if you use pins where there is no hardware.

#use RS232, programs the UART.

Even better, if you use the UART name it selects the UART automatically. So:

#USE RS232(UART1, Baud=9600, parity=N, ERRORS)

sets up UART1 ready for use.

[asmboy]

BTW: unless you like spending extra $$ on antique pics
have you considered the 4520 ??

[Ttelmah]

Agreed. A good point. Many of the 'old' PIC's have been superceded by models that use less power, cost less, and have improved features. The 452, is a classic example of such an 'older' chip.

Best Wishes