On Mon, 6 Sept 2021 at 03:47, Duo jia wrote:
>
> Thank you for your explanation.
>
>> And finishing the execution of the interrupt routine will automatically
>> allow a pending second interrupt to be taken immediately
>
>
> I think this is a hardware feature. But how to achieve it with qemu
That
Thank you for your explanation.
And finishing the execution of the interrupt routine will automatically
> allow a pending second interrupt to be taken immediately
>
I think this is a hardware feature. But how to achieve it with qemu
Peter Maydell 于2021年9月3日周五 下午7:20写道：
> On Fri, 3 Sept 2021 a
On Fri, 3 Sept 2021 at 11:54, Duo jia wrote:
>
> I do some support on STM8 arch, the reference manual link is:
>>
>> https://www.st.com/resource/en/reference_manual/cd00218714-stm8l050j3-stm8l051f3-stm8l052c6-stm8l052r8-mcus-and-stm8l151l152-stm8l162-stm8al31-stm8al3l-lines-stmicroelectronics.pdf
I do some support on STM8 arch, the reference manual link is:
>
>
> https://www.st.com/resource/en/reference_manual/cd00218714-stm8l050j3-stm8l051f3-stm8l052c6-stm8l052r8-mcus-and-stm8l151l152-stm8l162-stm8al31-stm8al3l-lines-stmicroelectronics.pdf
Chapter 12 describes interrupts as blow：
[image:
On Fri, 3 Sept 2021 at 09:33, Duo jia wrote:
>
> I understand the hardware，but How to achieve this function with qemu？，
>
> For example, this interrupt is not allowed to be nested. When the new
> interrupt comes, how can I detect that the interrupt is executing?
That depends on the hardware. I c
I understand the hardware，but How to achieve this function with qemu？，
For example, this interrupt is not allowed to be nested. When the new
interrupt comes, how can I detect that the interrupt is executing?
Peter Maydell 于2021年9月2日周四 下午3:43写道：
> On Thu, 2 Sept 2021 at 03:18, Duo jia wrote:
>
On Thu, 2 Sept 2021 at 03:18, Duo jia wrote:
>
> Hi,
>thank you for your response.
>As you say
>>
>> "End of interrupt handling is entirely dependent on what the
>> guest hardware being emulated is. Usually the guest software
>> will indicate "interrupt handled" back to the interrupt
>>
Hi,
thank you for your response.
As you say
> "
> *End of interrupt handling is entirely dependent on what the*
> *guest hardware being emulated is. Usually the guest software*
> *will indicate "interrupt handled" back to the interrupt*
> *controller (perhaps by writing a register; depend
Thank you for the detailed explanation.
Peter Maydell 于2021年8月6日周五 下午6:16写道：
>
> On Fri, 6 Aug 2021 at 07:24, Duo jia wrote:
> > I am simulating a device. When an interrupt occurs, another interrupt
> > comes, and the second interrupt will not be triggered because the
> > first interrupt has not
On Fri, 6 Aug 2021 at 07:24, Duo jia wrote:
> I am simulating a device. When an interrupt occurs, another interrupt
> comes, and the second interrupt will not be triggered because the
> first interrupt has not yet finished.
>
> I want to know whether qemu can detect whether the interrupt has been
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