Tuesday, March 2, 2021

Writing USB firmware on the CH55x MCUs

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Over the last several months, I've been familiarizing myself with the CH552 and CH551 MCUs .  Most recently, I've been learning how ...
2 comments:
Tuesday, January 26, 2021

Quirks of the CH55x MCUs

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Over the past several months, I've been been learning to use  the CH551 and CH552  MCUs.  Learning generic 8051 programming was the easy...
1 comment:
Tuesday, January 19, 2021

GD32E230: a better STM32F0?

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  On my last LCSC order, I bought a few GD32E230  chips, specifically the GD32E230K8T6.  I chose the LQFP parts since I have lots of QFP32 b...
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Saturday, January 2, 2021

Trying to test a "ten cent" tiny ARM-M0 MCU part 2

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After my first look at the HK32F030MF4P6 , I wondered if the HK part, unlike the STM32F030 it is modeled after, does not have 5V tolerant IO...
Sunday, December 13, 2020

Trying to test a "ten cent" tiny ARM-M0 MCU

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  A few months ago, while browsing LCSC , I found a surprisingly cheap ARM M0 MCU .  At the time it was 16.6c in single-unit quantities, wit...
Monday, December 7, 2020

STM32 Starting Small

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  For software development, I often prefer to work close to the hardware.  Libraries that abstract away the hardware not only use up limited...
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Monday, October 5, 2020

LGT8F328P EDMINI board

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Earlier this year I purchased a EDMINI board from Electrodragon .  It uses a LGT8F328P chip, which supports the AVR instruction set.  The in...
4 comments: