Search found 465 matches

Hi

I added to the I2C
#use I2C(MASTER, SLOW=100000, I2C1,SMBUS, STREAM=I2CPORT)
It didn't help

Best wishes
Joe

Thank you for the prompt answer Ttelmah

I am out of office, will test again tomorrow

Best wishes
Joe

Hi Ttelmah

I am working with this PIC16F1847 for many years but first time with I2C.
I used PIC18F26K22 for the CMPS14 with I2C also I2C for EEPROM to other PIC's (with your help in the past) alwa ...

From the data sheet:
Power supply requirements are flexible, you can feed between 3.3 - 5v and the module draws a nominal 18mA
of current. A choice of serial or I2C interfaces can be used for commun ...

Hi Temtronic

I am working with CMPS14 for more than 10 years now, always with 5v
Also worked with previous versions, CMPS11 and CMPS12
It works with uart TTL or I2C
The data sheet states: 3.3v - ...

Hi Temtronic

I am not using the RX of the serial communication so I am not enabling it

Best wishes
Joe

Hi

Changed to:
#int_RDA
void RDA_isr(void)
{
scomrxw=fgetc(PORT1);
}

The problem persist

Best wishes
Joe

Thanks for the advice Ttelmah

I am out from work now, will try first thing in the morning

Best wishes
Joe

I am back with some delay

Below the test program:
/////////////////////////////////////////////////////////////////////
//Project: OSC47I2C
//Program: OSC47I2C.c
//Microcontroller ...

Hi Ttelmah

According to the LED toggling the PIC run at 32 MHz. No Problem there.
By the way, I moved to delay setting to the end of the fuses and the problem persist

Best wishes
Joe

Hi Ttelmah

PLL enabled in software also with the crystal oscillator

Don't have any other place in the software that the oscillator is setup

Will make in the weekend a short program just with ...

Hi Temtronic

The reason of #use delay(...) before the FUSES is because in the past I had problems with this PIC with the internal RC when the #use delay(...) was before #use rs232

Ttelmah advise ...

Hi Temtronic

No reason to do that
1. without the I2C loop the led toggles every 500ms an the serial com works fine on the crystal oscillator
2. on the internal RC everything works fine including ...

Hi Ttelmah and Temtronic

Thank you for the answers

I am using pin B1 SDA1 and pin B4 SCL1 (according to the data sheet)
I am using pin B2 as RX and pin B5 as TX for serial communication
The ch ...

Hi Temtronic

I was thinking that CCS doing that for me:
#use I2C(MASTER, SLOW=100000, I2C1, STREAM=I2CPORT)//I2C1 hardware used

I know that SSP and I2C have the same hardware. can't use ...