Problem with set_port_b on PIC16F1847

jake1272 · Joined: 15 Mar 2021 Posts: 37

Hi everyone I am working with PIC16F1847 and I want to configure the pin RB0 as input but every time I am getting an Undefined identifier set_port_b_tris from the compilier.
Could you please let me know what can be the problem?
The compiler is CCS v5.065
The IDE is MPLAB X IDE v5.40
Thanks

Ttelmah · Joined: 11 Mar 2010 Posts: 19219

Why not try reading the manual....

The tris command is set_tris_b No 'set_port'. Also if you use standard_io,
you basically never need to actually set the tris. Simply
output_high(PIN_B0) or output_low(PIN_B0) will output the bit and set the
tris for you.

temtronic · Posted: Sat Apr 24, 2021 10:38 am

quick comment..
when doing 'bit level' stuff, like pin directions on a port...) it's easier to use 0b00001111 instead of 0x0f. Visually the brain 'sees the upper nibble as outputs, the lower 4 bits as inputs. (0=Output, 1=Input).