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 by efox ¦  Mon Jul 06, 2009 6:28 am ¦  Forum: Everything ARM and LPC ¦  Topic: multiple edge trigger irq - how to ? ¦  Replies: 6 ¦  Views: 1298

With the ARM7, you will need to work out which (GPIO) port generate the interrupt and branch to a handler for that port. Then you need to determine the pin that caused the interrupt and deal with it accordingly. So what you are saying is that any GPIO interrupt (whether Pin1 or Pin25) interrupt, it...

multiple edge trigger irq - how to ?

 by efox ¦  Sun Jul 05, 2009 7:44 pm ¦  Forum: Everything ARM and LPC ¦  Topic: multiple edge trigger irq - how to ? ¦  Replies: 6 ¦  Views: 1298

Ive been playing around with an Atmel AT91SAM7S64 (ARM7TDMI) for a little bit. Gradually trying to learn the thing. There are a number of pins that can be configured for IRQ. My question is, is it possible to have a different ISR for each different pin OR do all IRQ fall under one ISR and within tha...

 by efox ¦  Wed Jan 02, 2008 5:50 am ¦  Forum: Wireless/RF ¦  Topic: Bluetooth general questions (BGB203) ¦  Replies: 4 ¦  Views: 1524

excellent. id love to hear what you have learned. i could be wrong, but i do believe that there is a master and a slave because one of the layers of a bt stack is host controller interface. Thats my reasoning. But i do vaguely remember reading somewhere that its also possible to set them just to com...

 by efox ¦  Mon Dec 31, 2007 12:51 pm ¦  Forum: Wireless/RF ¦  Topic: Bluetooth general questions (BGB203) ¦  Replies: 4 ¦  Views: 1524

I've been doing a bit of reading since the start of this thread and it I just want to make sure that what I'm saying is true. Any bluetooth module that spe has may be used as the master. What determines if it is the master is if it has come controller (any microcontroller) that sends the nessary hos...

Bluetooth general questions (BGB203)

 by efox ¦  Fri Dec 28, 2007 12:15 pm ¦  Forum: Wireless/RF ¦  Topic: Bluetooth general questions (BGB203) ¦  Replies: 4 ¦  Views: 1524

I am thinking of building a bluetooth controlled robot and I have a couple of questions which I could not seem to find. 1. Can the BGB203 (sku #WRL-08461) be used as both master and slave ? There may or may not be using a PC as I want the robot(s) to transmit data to a master controller (could be a ...