Hello guys!
This question is because of reduced number of interrupts on a micro. I have 3 signals that are low active and only one interrupt. I need to be able to sense every lowering edge of the signals. If I use a nand gate, I will have a problem sensing a second lowering edge because the nand gate output is already set by the first lowering edge. I could use a regular port (GPIO), put I wanna avoid sweeping on the code.
Is there a hardware that could help me interface the signals?
Any sugestion? Anyone?
Thanks in advance.
This question is because of reduced number of interrupts on a micro. I have 3 signals that are low active and only one interrupt. I need to be able to sense every lowering edge of the signals. If I use a nand gate, I will have a problem sensing a second lowering edge because the nand gate output is already set by the first lowering edge. I could use a regular port (GPIO), put I wanna avoid sweeping on the code.
Is there a hardware that could help me interface the signals?
Any sugestion? Anyone?
Thanks in advance.