X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f Message-ID: <003a01c4e35a$83224700$67b92951@josepmariaxp> From: "JM Rams" To: Subject: Problems with timer interrupt chaining and SmartDrv Date: Thu, 16 Dec 2004 11:31:28 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0037_01C4E362.C8E7C870" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2741.2600 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2742.200 Reply-To: djgpp AT delorie DOT com This is a multi-part message in MIME format. ------=_NextPart_000_0037_01C4E362.C8E7C870 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable My interrupt comes every 500 micro seconds. If anyone use HD without = smartdrive interrupts works fine every time if it is 9 (If I use INT 5 = the interrupt gets down to 20 ms). When I use smartdrv some intervals = over two interrupts gets down to 20 ms aprox. I soposed that smartdrv = catch CPU control and not reenable interrupts, then I probe to catch HD = interrupt and enable PIC interrupts (outport(0x20...)) and CPU = interrupts (enable()) but it don't works. It may be possible that = smartdrv disable interrupts. ------=_NextPart_000_0037_01C4E362.C8E7C870 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

My interrupt comes every 500 micro = seconds. If=20 anyone use HD without smartdrive interrupts works fine every time if it = is 9 (If=20 I use INT 5 the interrupt gets down to 20 ms). When I use=20 smartdrv some intervals over two interrupts gets down to 20 ms = aprox. I=20 soposed that smartdrv catch CPU control and not reenable = interrupts, then=20 I probe to catch HD interrupt and = enable PIC=20 interrupts (outport(0x20...)) and CPU interrupts (enable()) but it = don't=20 works. It may be possible that smartdrv disable interrupts.

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