DOS ain't dead - uart interrupt tx rx in Dos32 bit open watcom

uart interrupt tx rx in Dos32 bit open watcom (Developers)

posted by RayeR , CZ, 12.11.2013, 01:50

> Doesn't it need to clear some interrupt flag in PIC (send something to PIC
> IO port but I don't remember). I was trying only Rx ISR in DJGPP with Tx
> routine polled so I can't help more.

EDIT I meant
//***************** PIC (Programmable Interrupt Controller) registers *******
#define UART_PIC_IMR 0x21 // PIC Interrupt Mask Register
#define UART_PIC_ITR 0x20 // PIC Interrupt Termination Register

outportb(UART_PIC_ITR, 0x20); // ISR end signal for PIC

---
DOS gives me freedom to unlimited HW access.

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Complete thread:

uart interrupt tx rx in Dos32 bit open watcom - maui, 11.11.2013, 11:14 (Developers)
- uart interrupt tx rx in Dos32 bit open watcom - RayeR, 11.11.2013, 19:34
  - uart interrupt tx rx in Dos32 bit open watcom - RayeR, 12.11.2013, 01:50
- uart interrupt tx rx in Dos32 bit open watcom - tom, 12.11.2013, 12:24
  - uart interrupt tx rx in Dos32 bit open watcom - RayeR, 12.11.2013, 12:30
  - uart interrupt tx rx in Dos32 bit open watcom - bretjohn, 12.11.2013, 16:55
    - uart interrupt tx rx in Dos32 bit open watcom - maui, 12.11.2013, 19:23
      - uart interrupt tx rx in Dos32 bit open watcom - bretjohn, 12.11.2013, 21:12
      - uart interrupt tx rx in Dos32 bit open watcom - tom, 13.11.2013, 11:22
        uart interrupt tx rx in Dos32 bit open watcom - maui, 13.11.2013, 15:49
        uart interrupt tx rx in Dos32 bit open watcom - Oso2k, 13.11.2013, 22:26
        uart interrupt tx rx in Dos32 bit open watcom - maui, 15.11.2013, 19:43
        uart interrupt tx rx in Dos32 bit open watcom - tom, 16.11.2013, 19:02
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 17.11.2013, 04:21
        uart interrupt tx rx in Dos32 bit open watcom - maui, 19.11.2013, 12:42
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 19.11.2013, 20:59
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 22.11.2013, 15:22
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 23.11.2013, 03:09
        uart interrupt tx rx in Dos32 bit open watcom - maui, 24.11.2013, 13:45
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 26.11.2013, 23:25
        uart interrupt tx rx in Dos32 bit open watcom - RayeR, 27.11.2013, 03:26
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 05.01.2014, 20:42
        uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 26.01.2014, 02:06
        uart interrupt tx rx in Dos32 bit open watcom - tom, 27.01.2014, 22:46
- uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:14
  - uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:15
  - uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:16
- uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:32