• State Not Answered
  • Locked Locked
  • Replies 6 replies
  • Subscribers 22 subscribers
  • Views 1771 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

I don't know how I can write my ISR routine with cortex m3

Dear Martinmohsen Gholami

Dear Sir/Madam
I'm new in ARM programming with c .I saw the following code to handle timer ISR :

__irq void TIMER1_IRQHandler(void)
{
.
.
.
return;
}


can you introduce me some documents which I will be able to learn how to write my ISR code and how to use them in my code and learning ISR function instructions?

Thanks and bet regards.
Mohsen

Parents
  • 0 in reply to Dear Martinmohsen Gholami

    Given where you're at on the learning curve it could only help.

    void ADC_IRQHandler(void) {
  volatile uint32_t adstat;

  adstat = LPC_ADC->ADSTAT;                       /* Read ADC clears interrupt     */

  AD_last = (LPC_ADC->ADGDR >> 4) & ADC_VALUE_MAX; /* Store converted value   */

  AD_done = 1;
}

    The M3 doesn't require the __irq directive of the ARM7/9 cores, you will need to become familiar with the NVIC on the M3, and the hardware/peripheral configuration of your NXP part. Reading the manuals would be a good start.

    I'm sure there are other code examples an internet search away.

Reply
  • 0 in reply to Dear Martinmohsen Gholami

    Given where you're at on the learning curve it could only help.

    void ADC_IRQHandler(void) {
  volatile uint32_t adstat;

  adstat = LPC_ADC->ADSTAT;                       /* Read ADC clears interrupt     */

  AD_last = (LPC_ADC->ADGDR >> 4) & ADC_VALUE_MAX; /* Store converted value   */

  AD_done = 1;
}

    The M3 doesn't require the __irq directive of the ARM7/9 cores, you will need to become familiar with the NVIC on the M3, and the hardware/peripheral configuration of your NXP part. Reading the manuals would be a good start.

    I'm sure there are other code examples an internet search away.

Children
No data