| ??? 04/26/07 13:04 Read: times |
#138007 - Serial transmission in scheduller instead of int |
Hi everyone,
I have the following scenario: I have a SW fifo buffer where all the bytes that I want to transmit through serial port of 8051 are stored. I also have a scheduller interrupt triggered every 1ms. I am transitting at speed 9600baud (1,04ms/byte inclusive start/stop bit). Is there any danger if the transmission (fetching 1 byte from FIFO and placing to SBUF when TI is set) is done in the scheduller instead of doing it in the serial vector interrupt? The advantages of such solution is that I have more controll over my program. But is it possible that such scenario would in some case not work? Thank you very much, greetings Attila |
| Topic | Author | Date |
| Serial transmission in scheduller instead of int | 01/01/70 00:00 | |
| danger, maybe, loss of efficiency YES ABSOLUTELY!! | 01/01/70 00:00 | |
| avoiding interrupts means... | 01/01/70 00:00 | |
| Scheduller.... | 01/01/70 00:00 | |
| there is no such thing | 01/01/70 00:00 | |
| Limitation API | 01/01/70 00:00 | |
| API? | 01/01/70 00:00 | |
| Yes ASIC design fixed... | 01/01/70 00:00 | |
| debug possibilities? | 01/01/70 00:00 | |
Monitor is nice idea | 01/01/70 00:00 | |
| 1ms vs 1.04ms | 01/01/70 00:00 | |
| absolutely NOT | 01/01/70 00:00 | |
| ok but 1 byte is transmitted together | 01/01/70 00:00 | |
| if it does, then you need to KISS | 01/01/70 00:00 | |
| I took the 1ms processing tick for granted... | 01/01/70 00:00 | |
| Thanks for the inputs... | 01/01/70 00:00 |