Anonymous
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Jul 14, 2015
08:22 PM
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Jul 14, 2015
08:22 PM
Hello,
I looked through the BCM20737 datasheet and the BCM02737 Schematic Design Guidelines, but I didn't see this information. Where should I look?
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1 Solution
Jul 14, 2015
08:52 PM
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Jul 14, 2015
08:52 PM
There are up to 14 GPIOs on the module (40 on SOC)
- Most can drive/sink up to 2mA
- Capable of waking device from sleep or deep sleep
- App can configure interrupts (both/either edges, level), pull-up/pull-down High-Z, etc.
- Check theWICED™ Smart Hardware Interfaces to determine availability
3 Replies
Jul 14, 2015
08:52 PM
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Jul 14, 2015
08:52 PM
There are up to 14 GPIOs on the module (40 on SOC)
- Most can drive/sink up to 2mA
- Capable of waking device from sleep or deep sleep
- App can configure interrupts (both/either edges, level), pull-up/pull-down High-Z, etc.
- Check theWICED™ Smart Hardware Interfaces to determine availability
Jul 16, 2015
10:10 AM
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Jul 16, 2015
10:10 AM
Thank you. I didn't know that any pin could be used as an interrupt; that is nice.
BTW, the 2mA drive current is kind of a pain; it forces one to use current buffers for simple LEDs. Most MCUs designed for ultra low power have a drive current of 4mA - 8mA.
Jul 16, 2015
10:28 AM
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Jul 16, 2015
10:28 AM
There's also 4 PWM channels on module (and SoC) and these can sink up to 16mA which make them ideal for controlling things like LEDs and Buzzers.