ST72324: External Interrupt on rising edge and high level

roberto239955 · ‎2003-01-29

Posted on January 29, 2003 at 11:22

roberto239955 · ‎2003-01-26

Posted on January 27, 2003 at 07:20

Hi,

In case of ''Interrupt on rising edge and high level'' selection for external port pin, the interrupt generated is just one or a sequence until the signal goes down again?

In case of a sequence, wich is the time between one interrupt and the following one?

If somebody knows the answers..... thanks a lot

Fiorenz

stephanie · ‎2003-01-29

Posted on January 29, 2003 at 11:22

The interrupt sensitivity ''rising edge and high level'' launches an interrupt as soon as a rising edge is detected on the I/O and several interrupts while the line is high (5V). So a lot of interrupts can be launched and latched!

Concerning the time, it depends only on the time spent in your external interrupt routine (2 ext its can be consecutive immediately without coming back in the main routine).

[ This message was edited by: stef on 29-01-2003 15:54 ]