From: "peter_ku" <peter_ku@issc.com.tw>
To: <ecos-discuss@sources.redhat.com>
Subject: [ECOS] E7T timer0 interrupt issue ?
Date: Mon, 20 May 2002 20:31:00 -0000 [thread overview]
Message-ID: <000001c20077$f7e23320$790114ac@issc.com.tw> (raw)
In-Reply-To: <3CE9A88A.B7912FF3@redhat.com>
Hello,
Target = E7T.
I write a simple program to test timer0 interrupt, I want to toggle the led every 1sec. But I can't enter my ISR.
I can see the INTPND = 0x400, and also see my timer0 running!!
Anyone can check the following code?
thanks a lot
Peter
#define TOTAL_THREADS 1
cyg_thread threads[TOTAL_THREADS];
cyg_handle_t handle_thread_show_led;
cyg_handle_t handle_timer0_isr;
cyg_interrupt isr;
char stack[TOTAL_THREADS][4096];
cyg_thread_entry_t show_led_proc;
cyg_ISR_t Timer0_ISR;
cyg_DSR_t Timer0_DSR;
void cyg_user_start(void)
{
cyg_thread_create(4, show_led_proc , (cyg_addrword_t) 0 , "THREAD SHOW LED", (void *) stack[0], 4096,
&handle_thread_show_led, &threads[0]);
cyg_interrupt_create(CYGNUM_HAL_INTERRUPT_TIMER0,99,0,Timer0_ISR, Timer0_DSR, &handle_timer0_isr, &isr);
cyg_interrupt_attach(handle_timer0_isr);
HAL_WRITE_UINT32(E7T_TDATA0,50000000);
HAL_WRITE_UINT32(E7T_TMOD,E7T_TMOD_TE0 | E7T_TMOD_TMD0);
cyg_interrupt_unmask(CYGNUM_HAL_INTERRUPT_TIMER0);
cyg_interrupt_enable();
cyg_thread_resume(handle_thread_show_led);
}
void show_led_proc(cyg_addrword_t data)
{
int i,j;
int temp_data;
HAL_READ_UINT32(E7T_IOPDATA,temp_data);
temp_data |= 0xf0;
HAL_WRITE_UINT32(E7T_IOPDATA,temp_data);
for( ; ; )
{
for( i =0 ; i < 10 ; i++)
{
HAL_READ_UINT32(E7T_IOPDATA,temp_data);
temp_data &= ~SEG_MASK;
temp_data |= numeric_display[i];
HAL_WRITE_UINT32(E7T_IOPDATA,temp_data);
for(j = 0; j < 10000000; j++) { }
}
}
}
cyg_uint32 Timer0_ISR(cyg_vector_t vector, cyg_addrword_t data)
{
cyg_uint32 temp_data;
HAL_READ_UINT32(E7T_IOPDATA,temp_data);
temp_data ^= 0xf0;
HAL_WRITE_UINT32(E7T_IOPDATA,temp_data);
cyg_interrupt_acknowledge(vector);
return CYG_ISR_HANDLED;
}
void Timer0_DSR(cyg_vector_t vector,cyg_ucount32 count, cyg_addrword_t data)
{
}
next prev parent reply other threads:[~2002-05-21 3:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-15 7:24 [ECOS] GNU tools combination for eCos peter_ku
2002-05-20 18:53 ` Jonathan Larmour
2002-05-20 20:31 ` peter_ku [this message]
2002-05-20 20:56 ` [ECOS] E7T timer0 interrupt issue ? Simoncc
2002-05-21 7:34 ` Gary Thomas
2002-05-22 8:22 ` peter_ku
2002-05-28 12:28 ` Jonathan Larmour
2002-05-20 20:41 ` [ECOS] GNU tools combination for eCos peter_ku
2002-05-21 7:44 ` Jonathan Larmour
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='000001c20077$f7e23320$790114ac@issc.com.tw' \
--to=peter_ku@issc.com.tw \
--cc=ecos-discuss@sources.redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).