Seeing the mini doesn't use the USB port to download code, what is preventing the it from running at a higher clock speed? If nothing, then what would need to be done to change the PLL settings?
Also, are there any plans to make a mini that has a larger pin count or some pads to solder to the unused CPU pins?
Mini Overclock
Started by kingofl337, Aug 07 2012 05:49 PM
4 replies to this topic
#2
Chris Walker
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Posted 15 August 2012 - 11:08 AM
Hi kingofl337,
Technically if you wanted to remove the crystal, switch it to a 20MHz crystal, and then update the source...you could update the PLL settings to match and crank it up to 55MHz.
We've been playing with the idea of a larger Netduino Mini, but once we go beyond DIP24 the form factor starts getting quite a bit bigger...
Chris
The Netduino Mini uses the same 18.432MHz crystal as Netduino and Netduino Plus so that users have a consistent experience across all products. 18.432MHz is required for USB operation.Seeing the mini doesn't use the USB port to download code, what is preventing the it from running at a higher clock speed? If nothing, then what would need to be done to change the PLL settings?
Also, are there any plans to make a mini that has a larger pin count or some pads to solder to the unused CPU pins?
Technically if you wanted to remove the crystal, switch it to a 20MHz crystal, and then update the source...you could update the PLL settings to match and crank it up to 55MHz.
We've been playing with the idea of a larger Netduino Mini, but once we go beyond DIP24 the form factor starts getting quite a bit bigger...
Chris
#3
SteveS
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Posted 16 August 2012 - 10:21 AM
We've been playing with the idea of a larger Netduino Mini, but once we go beyond DIP24 the form factor starts getting quite a bit bigger...
Chris
I have used larger DIP packages. The 40 pin ATMega 644 (yup, Arduino...) is manageable, you just need bigger breadboards.
Of course, you'd lose STAMP pin compatibility, but the extra pin count would be worth it (access to SPI1 for SD support, maybe even breaking out for Ethernet as well). A Netduino Mini+, just add the extra hardware (SD holder and a magjack...)
I'm about to spend a happy few hours updating my motley assortment of N,N+ and NM to 4.2....
Steve
#4
TinkeringTurtle
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Posted 19 August 2012 - 06:22 AM
This comments plays into a question I've been pondering: For finished products in the near future, is it the expectation to continue with the current mini or will there be a mini 2 with the upgraded chip were getting with the go and go base shield?We've been playing with the idea of a larger Netduino Mini, but once we go beyond DIP24 the form factor starts getting quite a bit bigger...
Chris
#5
Chris Walker
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Posted 19 August 2012 - 12:34 PM
Hi Yeorwned,
Chirs
The Netduino Mini is a really careful balance of power consumption, size, and capabilities. The new Cortex chips used on Netduino Go and the Shield Base take a lot more power and don't come in the tiny BGA/QFN form factor. So at this time there is no immediate plan to change Netduino Mini.This comments plays into a question I've been pondering: For finished products in the near future, is it the expectation to continue with the current mini or will there be a mini 2 with the upgraded chip were getting with the go and go base shield?
Chirs
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