BlogWhat keeps us busy and awake at night?
It has been a while before I posted something useful. On my search for obscure chips, I came around another interesting Chinese chip (which I don't reveal yet). The chip was advertised as a cheap drop-in replacement for a American IC so I suspected it would be a...read more
As the last days of 2018 are ticking away, it is time to overthink the last year. Last year was a bit of exploring of Chinese chips. We covered the Gigadevices GD32 in dept intro, solderability, blinkaled, UART and SPI. We also found a very cheap ARM microcontroller...read more
A couple of days ago, I got a notice from Tindie all the SWM050 boards were sold. I also noticed the stock on LCSC of these chips had gone down dramatically. Despite I think the use is limited of the chip, there seems to be a quite interest in it. Many thanks to all...read more
Searching the prequisite Chinese websites to satisfy my shopping fetish I came across a neat litte ARM Cortex-M0 chip which is a extremely good bang for buck. It is the SWM050 made by Synwit, which, I believe, is the smallest chip available in a reasonable...read more
This is part 4 in the series where we compare the STM32F103 with its Chinese counterpart the GD32F103. Both are ARM Cortex M3 microcontrollers which are mostly pin, peripheral and register compatible. Now we compare the SPI master peripheral of both chips. SPI is a...read more
Since the GD32F103 can run as fast as 108MHz but has not a proper USB clock divider to provide a 48MHz clock for USB communication we need another way to communicate with the outside world. Since the early days of computing the easiest way to go is a asynchronous...read more