Matrix user forums

Ben

Forgot to add, if IOC B is enabled along with the timer interrupts, the PIC reboots on encoder CW or CCW rotation, but with the other encoder added as IOC A it works OK on that encoder but now when the IOC B encoder is operated nothing is read, the PIC freezes & doesn't reboot.

Paul

Ben

FYI to give more context, this extract is from an encoder & touch screen test program with (2) IOC interrupts where only IOCB doesn't work properly plus (2) timer interrupts which both work, yet all (4) have a warning that the macros may not get called?


//Handler code for [IOC1]
#ifndef MX ...

Ben

Thanks. I tried this and the interrupts are now definitely recognised as demonstrated by the PIC rebooting every time the encoder is rotated left or right. I had a squiz at the c-code and saw CNENB = 0x60 | (0x0,<<8 which is now correct for interrupt on B5 or B6.

But what is "35" doing in ...

Hello.

I have a PIC32MX170F256B FC8 project with 2 rotary encoders each using IOC. An IOC portA to read one and IOC portB to read the other but the portB interrupt don't work, tried all avail 2 pin combinations for the encoder on portB. Verified encoder is working.

Also tested FC8 with ONLY 1 ...

Hello

Another problem with this chip is selecting I2C, channel 2 results in a compile fail. I have been using EEPROM, MAX44009 sensor and BMP280 OK on channel 1 (or software) BUT when I went to channel 2 it doesn't compile & gives errors 'I2CCON' (undeclared first use in this function) etc

Can you ...

Ben

Thanks very much, that makes sense and it worked. It's better than modifying the component definition file.

FYI I noticed this chip's data sheet used ANSELA/B for the analog port config bits like PIC18's BUT a check in other PIC24 datasheets shows ANSA/B etc is used. I did replace ANSEL with ...

Hello, I need help with this component. My previous projects have been 8 bit PICs so before starting work on a 16 bit program I selected the above and went to do a simple test to set the xtal osc and turn on 1 led. Surprisingly it failed to compile to hex in FC8 (tried FC7 but it doesn't have this ...