From: mutazilah@nospicedham.gmail.com   
      
   On Saturday, April 15, 2023 at 10:20:57 AM UTC+8, Paul Edwards wrote:   
      
   > uartEnableTBE(&uart);   
      
   I have found that I need this in order to get an   
   interrupt, as expected.   
      
   > uartTxCh(&uart, ch);    
      
   But I was surprised to find that I didn't need this.   
      
   Basically it appears that TBE wakes up once to let   
   me know that it is currently empty, but once I start   
   sending it data, and then halting, it doesn't feel the   
   need to let me know it is empty again.   
      
   But my whole design is centered around being   
   informed of that.   
      
   Maybe what is happening is that interrupts are disabled   
   so often/sometimes the character is transmitted   
   immediately and it isn't allowed to interrupt, so it doesn't.   
      
   I then enable interrupts and hlt but the show is already over.   
      
   So maybe what I need to do instead is send the character   
   after enabling interrupts.   
      
   I'll try that next. Not as neat as the previous generic solution.   
      
   BFN. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)