Latest images8051 use TFx as the flag of timer overflow, and RI/TI as the flag of UART send/received.
But I can't find the code that set these flags. Are they implemented?
But I can't find the code that set these flags. Are they implemented?
8051 Timer and UART flags
2 posters
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Re: 8051 Timer and UART flags Tue Oct 03, 2023 12:19 pm
arcachofo
Flags are set in src/microsim/mcuinterrupts.cpp Interrupt::raise().
Most functionality for interrupts is implemented there, but there are some specific cases implemented in i51interrupt, avrinterrupt, etc.
Most functionality for interrupts is implemented there, but there are some specific cases implemented in i51interrupt, avrinterrupt, etc.
3 Re: 8051 Timer and UART flags Tue Oct 03, 2023 2:06 pm
royqh1979
en...I can't get 8051's uart work.
Not sure where's the problem. I just started to learn digital circuit and 8051 mcu since last month...
But debug do make me understand a lot about 8051...
Not sure where's the problem. I just started to learn digital circuit and 8051 mcu since last month...
But debug do make me understand a lot about 8051...
4 Re: 8051 Timer and UART flags Tue Oct 03, 2023 2:22 pm
arcachofo
You are right, my test also fails.I can't get 8051's uart work.
I will have a look.
5 Re: 8051 Timer and UART flags Tue Oct 03, 2023 8:51 pm
arcachofo
Solved some issues when USART is driven by Timer at Rev 1961.
Not sure but this could break something else, still needs some testing with other MCUs.
Not sure but this could break something else, still needs some testing with other MCUs.
6 Re: 8051 Timer and UART flags Wed Oct 04, 2023 2:08 am
royqh1979
arcachofo wrote:Solved some issues when USART is driven by Timer at Rev 1961.
Not sure but this could break something else, still needs some testing with other MCUs.
Great!
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