Search found 36 matches

I have found a method call RTOS.

Is RTOS suitable to run 2 critical task which required more than 2 interrupts as both high priority.

Or PIC itself is not meant for RTOS? Any advice will be appr ...

Dear All,

I really wish you can help me for the below:

I am doing a RFID controller, I have 8 unit RFID controller(Slave) which linked with each other via BUS(I use ex_PBUSM.c for the communicat ...

Thank you, Ttelmah.

Yes.
I see you are not using INT_EXT, so that caveat vanishes. :-)
You are listing INT_RDA twice. Presmably (hopefully) the second is INT_RDA2?.

Best Wishes

Will the caveat appear if I use INT ...

I have corrected some bug.

ext_int_edge( 2, h_to_l );
enable_interrupts(int_ext2);

But still can't work.... Please help!

Dear All,

I have study the whole code for ex_PBUSM.c

I have modify the program, but the master just won't receive the data send by slave. My compiler is 4.104. I have debugged for 2 days. I just ...

Thank you Humberto for your kind sharing.

It helps me look into this matter from different perspective. Thanks!

Just make sure your buffer size is multiple of 8, it will solve your problem.

Dear All,

in the ex_PBUSM.c example, in line 71.

#bit intf=11.1

May I know what is this line means?

Thank you very much on your help.

I really appreciate the help. Thanks!!

Dear All,

enum pbus_states {PBUS_IDLE=0x80,PBUS_NEED_LEN=0x81,PBUS_NEED_TO=0x82,
PBUS_NEED_FROM=0x83,PBUS_NEED_CS=0x84};

Humberto

Does anyone know what is P ...

anyone? Please...................

hi all,

Does anyone know what is the difference among the following:

1) PBUSM
2) EX_RS485
3) MODBUS

Basically I need to have 16 Slaves and be linked to a PC. The PC will send commands to sl ...

oppss...... sorry

I have tested the program PBUSM.c today.

It works fine but only can send 8 bytes data.

Can anyone confirm that?

Thanks!

Sounds like bad grounds, either open or high resistance.

All USB converters have a CPU in them, can generate EMI (noise), so your circuits must have great grounds and shielding (even small value ca ...