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Hi,

Observed similar problem with MPLAB 8.92 with PCH v5.016/v5.036 as well as PCM. Believe the problem exist in PCM/PCH v4.

Apparently if you duplicated multiple version of same project, e.g. w ...

Hi all,

the v5 (v5.015/016) uses significantly more ROM space. So, what special does it do compared with v4? Anyone can shed the light?

Thanks!

Thanks!

I found that in order for me to use RC0/1 as IO, I need to add SOSC_DIG to the FUSES statement, otherwise, RC0/1 might be redefined (see data sheet "If a secondary oscillator is not de ...

Hi,

I am trying to get a 16MHz from an external 4MHz crystal with 4x PLL, however, I seem to be having internal OSC to be driving instead. I read in this forum about the internal OSC will switch ov ...

#use i2c(master, sda=PIN_B4, scl=PIN_B6,force_sw)

does it enough for PIC16F690 software I2c bus?

The software stay in loop in routine ext_eeprom_ready(). It seems there's no ack from ...

Hi,

setup_adc_ports generates following incorrect assemblies, on target 16F1827.

Compiler version "CCS PCM C Compiler, Version 4.104, 51616"

1. There are no registers at BANK 3 0x10 ...

Hi,

I rewrote and emulated i2c_isr_state(), except to retrieve RW from SSPCON.RW instead of SSPBUF.0. It didn't work on 16F690, 16F916, 16F887 M/SSP slave.

It seems RW flag has not been set on S ...

Hi PCM Programmer,

I read your explanation.

My question is why doesn't the i2c_isr_state() function extract the R/W flag from SSPCON.RW (0x94 bit 2)?

Doesn't the SSPCON.RW carry the ADDR R/W ...

Hi,

The disassembly of i2c_isr_state() reveals that it reads SSPBUF.0 to determine if the ADDR is for read or write, instead of probing SSPCON RW flag. Why is that so?

The Microchip AN734 shown ...

Then with V4, the option to specify the rate was added. Slow and fast, then basically behave the same, if the same rate is selected,...

Hi, didn't quite understand this "V4" option. Do yo ...

#use I2C(master, sda=PIN_c4, scl=PIN_c3,slow=25000)

Hi, exactly how does the "SLOW" and "FAST" affect the SCL? And when do we use each of them?

Just do this and you'll get correct ASM code:
set_tris_a(PORTA_MASK);

My intent was to set only specific bit but not others. I found the work arounds, and list the result of various meth ...

Hi,

Tried your suggestion.

It works on F690, however, it doesn't work on F887. Here is the error and the source code for F887:

*** Error 103 "main.c" Line 6(2,6): Constant out of th ...

Hi,

I am keeping these ram locations for cross page access without having to flipping pages.

On CCS PCM C Compiler (Version 4.073) with F690, the compiler does not seem to use the location.

H ...

Here you go, the source,

#include <16F690.h>

#define PORTA_MASK 0x01

#byte TRISA = 0x85

void main() {
set_tris_a(TRISA | PORTA_MASK);
}

and the c ...