| ??? 08/08/10 15:49 Modified: 08/08/10 15:49 Read: times |
#177882 - Still a Missing Part of Scheme Responding to: ???'s previous message |
Johan:
It still appears that there is a missing part of the scheme that you describe. You say to "Call" Send_Char(). Possibly you meant to "Jmp To" Send_Char() and perform special handling of stack. Unless you do something like that the stack still has to unwind through to the RETI at the end of the serial interrupt routine!! There is of course the possibility to mess around with the pushed stack contents and the SP value in one of the routines to effectively purge the extra level of stack contents but such devious manipulations were not shown in the parts of the scheme exposed so far. Michael Karas |
| Topic | Author | Date |
| Writing to SBUF in Serial Routine | 01/01/70 00:00 | |
| Sure... | 01/01/70 00:00 | |
| yes, but | 01/01/70 00:00 | |
| TX inside serialint | 01/01/70 00:00 | |
| Pardon?? | 01/01/70 00:00 | |
| Pardon accepted | 01/01/70 00:00 | |
| Still a Missing Part of Scheme | 01/01/70 00:00 | |
| Pardon | 01/01/70 00:00 | |
| Will that work in 'C' ? | 01/01/70 00:00 | |
| Assembler if you want | 01/01/70 00:00 | |
| Why send_char? | 01/01/70 00:00 | |
| Why send_char | 01/01/70 00:00 | |
| You missed the point | 01/01/70 00:00 | |
| Call a routine from an interrupt | 01/01/70 00:00 | |
| Still misunderstanding | 01/01/70 00:00 | |
misunderstandings | 01/01/70 00:00 | |
| what happened to the OP? | 01/01/70 00:00 |