From: "ariga masahiro" <ariga@link-lab.co.jp>
To: "Andrew Lunn" <andrew@lunn.ch>
Cc: <ecos-discuss@ecos.sourceware.org>
Subject: [ECOS] Question about interrupt trigger mode.
Date: Fri, 28 Sep 2007 10:06:00 -0000 [thread overview]
Message-ID: <001501c801b7$2de8bed0$1c0110ac@ariga> (raw)
Hi,
My target uses SMSC LAN91C111 chip,CPU is SH7709S.
As ethernet interrupt,uses IRQ3 line.
I build "net" template,eCos source is updated by CVS checkout.
Please help me next 2 questions.
(1)
When IRQ3 aserted,enter into ISR routine,so far so good.
But although IRQ3 line continually hold assert-state(LOW),
and never chang to OFF(HIGH)state,ISR is repeatedly entered.
My question is,if interrupt trigger mode is setted edge trigger mode,
ISR routine is only entered once,isn't it ?
I assume trigger mode is setted by next routine.
packages\kernel\current\src\intr\intr.cxx HAL_INTERRUPT_CONFIGURE(
vector, level, up );
or Cyg_Interrupt::configure_interrupt routine.
I checked source but never found using HAL_INTERRUPT_CONFIGURE or
Cyg_Interrupt::configure_interrupt.
Is it only setted by default ?
I like to quarantee it is working egde trigger mode.
Could I know by cheching global area ?
How should I do to be confirmed that ?
(2)
After IRQ3 was aserted,does eCos's SMSC LAN91C111 driver delete factors
causing IRQ3 toward LAN chip ?
If it does,and it is possible,please let me know where it is done ?
Or is it user's responsibility to do in ISR ?
Please enlighten me.
Masahiro Ariga
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next reply other threads:[~2007-09-28 10:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-28 10:06 ariga masahiro [this message]
2007-10-01 5:01 ` [ECOS] Not working lan91cxx_sc drv ariga masahiro
2007-10-02 1:18 ` ariga masahiro
2007-10-02 4:46 ` ariga masahiro
2007-10-02 5:27 ` ariga masahiro
2007-10-02 7:08 ` ariga masahiro
2007-10-02 10:45 ` ariga masahiro
2007-10-11 9:01 ` [ECOS] Not enter VSR routine when lan91cxx_start executed ariga masahiro
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