using microprocessors instead of microcontrollers

Discussion related to "under the hood" OpenMV topics.
khiladi
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Joined: Thu Dec 06, 2018 9:42 pm

using microprocessors instead of microcontrollers

Postby khiladi » Thu Dec 06, 2018 9:54 pm

Guys,

Is there a reason you used the STM32 micro controller instead of a microprocessor with image processing DSP libraries such as TMS320 C55. The microprocessors do not seem to be more expensive than the micro controller and can also do the computations such as JPEG compression much faster.

I'm trying to build hardware to get a 30 FPS video for 640 X 480 pixels/frame.

Thanks
~Khiladi
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iabdalkader
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Joined: Sun May 24, 2015 3:53 pm

Re: using microprocessors instead of microcontrollers

Postby iabdalkader » Fri Dec 07, 2018 3:04 pm

khiladi wrote:
Thu Dec 06, 2018 9:54 pm
Is there a reason you used the STM32 micro controller instead of a microprocessor with image processing DSP libraries such as TMS320 C55. The microprocessors do not seem to be more expensive than the micro controller and can also do the computations such as JPEG compression much faster.
Mainly design complexity and power consumption, but they still cost more when you add RAM, PMIC etc...
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kwagyeman
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Re: using microprocessors instead of microcontrollers

Postby kwagyeman » Fri Dec 07, 2018 10:34 pm

Ibrahim chose to use the STM32M4 when we started the project and due to legacy it's pretty much impossible to switch the architecture since we're bound to the STM32 line of CPUs for I/o. That said, we won't continue on the STM32 forever...
Nyamekye,
khiladi
Posts: 2
Joined: Thu Dec 06, 2018 9:42 pm

Re: using microprocessors instead of microcontrollers

Postby khiladi » Sat Dec 08, 2018 8:02 pm

Thanks so much, Guys. This really helps.

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