. . . there should be no commercial device that cannot handle at least 100 kHz. thanks hexreader yes I was running it at 64MHz I have picked a 75kHz speed and is compiling OK, I'll reprogram the board to see if that improves my problem. I've got 1 meter cable between an airflow sensor and the pic M...

Hi, How can I select a slower speed for my I2C? say I'd like just 50KHz, not 100kHZ as the default slowest. And this is especially for a remappable I2C on PIC18F27K40. I2C1_Remappable_Init(100000); // Initialize I2C communication If I simply put the desired frequency I2C1_Remappable_Init(50000); // ...

paulfjujo, you got the wrong idea about what I am doing. I have already shown you the Interrupt routine that I am using - the first one in the first post. The one that it bothers you, and you cannot understand it, and you keep posting it thinking that this is the one that I am using in my program, a...

the solution is: case closed!

thanks for answering paulfjujo unfortunately absolutely nothing from your post indicate why my interrupt doesn't trigger. the fact that I did not show you my variables or declarations have got nothing to do with the interrupt not triggering. So, can anybody tell me why the USART Interrupt doesn't wo...

Hi, Why isn't my interrupt for UART working? PIC18F13K22 PIR1.RCIF = 0 ; // EUSART Receive Interrupt Flag bit // 1 = The EUSART receive buffer, RCREG, is full (cleared when RCREG is read) // 0 = The EUSART receive buffer is empty PIR1.TXIF = 1 ; // EUSART Transmit Interrupt Flag bit // 1 = The EUSAR...

Hi, The sample code for this addon board is not working. I can't receive anything from the OOK TX click board, which I can see on the spectrum analyzer that is sending the right data. More so, when this function is active if(!(ookrx_receiveData(0xCE35, &receivedPacket, 1))) { is eating up from proce...

Yeah, I've got it, thanks

for anybody else interested, the above SPI2 remap works perfectly, But the I2C1 needs to be this way to work: /******* I2C1 **********************************/ RC5PPS = 0x10 ; // MSSP1 (SDO/SDA) Out I2C1 Data Output RC5 SSP1DATPPS = 0b10101 ; // MSSP1 Data In I2C1 Data Input RC5 SSP1CLKPPS = 0b10100...

well, forget about that setting the OSC to: HFINTOSC with HFFRQ = 64MHz and CDIV = 1:1 in Edit Project and then code this in: OSCCON1.NOSC2 = 1 ; OSCCON1.NOSC1 = 1 ; // Int OSC 64MHz OSCCON1.NOSC0 = 0 ; OSCCON1.NDIV3 = 0 ; OSCCON1.NDIV2 = 0 ; // Div / 4 OSCCON1.NDIV1 = 1 ; OSCCON1.NDIV0 = 0 ; gives ...

OK janni, How do I set the clock to whatever I want then? And I want 16MHz, Internal OSC. In Edit Project I can only see: HFINTOSC with HFFRQ = 64MHz and CDIV = 1:1 or HFINTOSC with HFFRQ = 4MHz and CDIV = 4:1 These to me look like I can only set the OSC to either 64MHz or 1MHz, and nothing else. Ca...

How do I set the bits for ?
it seems the compiler doesn't recognize these at all.

Thanks.

how do I use I2C without blocking the program in case an i2c device is missing or not repsonding?

thanks janni

I think I've got the remapping sorted out: /******************** PIC18F27K40 PPS Mapping *********************************/ PPSLOCK = 0 ; // 0 PPS is not locked. PPS selections can be changed. /******* UART1 *********************************/ RX1PPS = 0b10111; // Default assignment for RX1 is RC7, s...