The library that sends and receives data in background using buffers and interrupts is called
serial_hw_int_cts There are a lot of samples, even one called 16f877_serial_hw_int_cts.jal It should run on an 16f877A with very little changes. Only thing is, you can't use pins C4/C5 for TX/RX, you are bound to C6/C7 as the usart is internally hard-wired to these pins. With very recent controllers like 18f46k42, you can internally patch the TX/RX lines to any pin of ports B or C, and there's a second uart that can be patched to any pin of port B or D. Greets, Kiste Am Montag, 19. April 2021, 04:38:52 MESZ hat majid ebru <[email protected]> Folgendes geschrieben: Thank you very much I just want to send/receive data with interrupt. How can i do that?! I should use i2c or spi I can't find any sample about interrupt sending/receiving data in pic Kiste در تاریخ یکشنبه ۱۸ آوریل ۲۰۲۱ ساعت ۲۳:۵۵:۴۵ (UTC+4:30) نوشت: > Hi! > > serial_software can't use interrupts. It is a "bit-bang" design which blocks > the processor while sending data, or while waiting for incoming data. > > If you're using a controller which doesn't have a usart peripheral and need > to send or receive asynchronous serial signals without blocking, you would > need to fire one interrupt per bit. There is no library which uses this > approach, and it would also be of little use. One interrupt per bit means you > can only use very low baud rates, unless your controller is a very fast one. > And all the fast controllers do have usart peripherals. > > Greets, > Kiste > > > > > > > Am Sonntag, 18. April 2021, 21:15:21 MESZ hat majid ebru <[email protected]> > Folgendes geschrieben: > > > > > > > Hi > i have two PIC16f877A. > how can i use Interrupt for send& receive data between they?? > i should use Serial_Software > ------------ > > ;@jallib section chipdef > -- chip setup > include 16f877a > pragma target clock 8_000_000 -- xtal frequency > pragma target OSC hs > pragma target WDT disabled > pragma target LVP disabled > enable_digital_io() > include print > include delay > intcon_gie = true -- Enable interrupt generally > -------------------------- Port A --------------------------------- > const bit ADC_HIGH_rESOLUTION = low > const word ADC_rSOUrCE = 2_000 > const byte ADC_NVrEF = ADC_VrEF_POS--ADC_NO_EXT_VrEF--ADC_NO_VrEF-- and one > Vref pin > const byte ADC_NCHANNEL = 3 --- our 6 ADC channel > include adc > include math > adc_init() > var word ADC_Input_general_1 = 0 > var word ADC_Input_general_2 = 0 > var word ADC_Input_general_3 = 0 > -------------------------------------------- ok, now setup serial > alias serial_sw_tx_pin is pin_C4 > alias serial_sw_rx_pin is pin_C5 > pin_C4_direction = output > const serial_sw_baudrate = 9600 > var bit serial_sw_invert = false > include serial_software > serial_sw_init() > -------------------------- Port B --------------------------------- > alias in1 is pin_b0 > pin_b0_direction = input > -------------------------------- > alias in2 is pin_b1 > pin_b1_direction = input > -------------------------------- > alias in3 is pin_b2 > pin_b2_direction = input > -------------------------------- > alias in4 is pin_b3 > pin_b3_direction = input > -------------------------------- > alias in5 is pin_b4 > pin_b4_direction = input > -------------------------------- > alias in6 is pin_b5 > pin_b5_direction = input > -------------------------- Port E --------------------------------- > alias SS1 is pin_e0 > pin_e0_direction = output > SS1 = 0 > -------------------------------- > alias SS2 is pin_e1 > pin_e1_direction = output > SS2 = 0 > -------------------------- Port D --------------------------------- > alias Buzzer1 is pin_d1 > pin_d1_direction = output > Buzzer1 = 0 > -------------------------------- > alias FlashLED1 is pin_d2 > pin_d2_direction = output > FlashLED1 = 0 > -------------------------------- > alias Out_1 is pin_d3 > pin_d3_direction = output > Out_1 = 0 > -------------------------------- > alias Out_5 is pin_d4 > pin_d4_direction = output > Out_5 = 0 > -------------------------------- > alias Out_4 is pin_d5 > pin_d5_direction = output > Out_4 = 0 > -------------------------------- > alias Out_3 is pin_d6 > pin_d6_direction = output > Out_3 = 0 > -------------------------------- > alias Out_2 is pin_d7 > pin_d7_direction = output > Out_2 = 0 > ------------------------------------------------------------------- > var word n = 0 , j = 0 > ------------------------------------------------------------------- > var bit bitOut1 = 0, bitOut2 = 0 > ------------------------------------------------------------------- > var word press = 0 > var word btnDelay = 500, btnDelay_1 = 0, btnDelay_2 = 0 > var word btnDelay_3 = 0, btnDelay_4 = 0 > var word buzDelay = 700, buzCount = 0 , sendByte = 0 > var byte temp1 = 0 > FlashLED1 = 1 > --------------------------------------------------- >>> interrupt >>> ---- > procedure ????? is pragma interrupt > if ????? then > block > -- if recevive 10 => set Out_2 ?????????????? > end block > end if > end procedure > ------------------------------------------------------------------- > forever loop > ----------------------- Buzzer > if buzDelay < buzCount then > buzCount = 0 > end if > if 0 < buzCount then block > Buzzer1 = 1 > buzCount = buzCount + 1 > end block > else > Buzzer1 = 0 > end if > ----------------------- btn1 > if in1 == 1 then > btnDelay_1 = btnDelay_1 + 1 > else > btnDelay_1 = 0 > end if > if btnDelay < btnDelay_1 then block > buzCount = 1 > btnDelay_1 = 0 > Out_1 = 0 > -- send Data to USART ????????????????? > end block > end if > -------------------------------------------------- > if n < 8000 then block > n = n + 1 > end block > else block > n = 0 > FlashLED1 = ! FlashLED1 > end block > end if > ----------------------- > end loop > ----------------------------------------------------------- > > > please help or guide me > > > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/b69ef4ed-22dc-45d7-b710-f616ad6f3ed0n%40googlegroups.com. > > > -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jallib/f78f32c2-569b-4560-8472-098f637c082cn%40googlegroups.com . -- You received this message because you are subscribed to the Google Groups "jallib" group. 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