by Sjaak | Jun 5, 2018 | arm-cortex, Blog, gd32, STM vs GD32, stm32 |
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...
by Sjaak | Mar 15, 2018 | arm-cortex, Blog, gd32, STM vs GD32, stm32 |
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...
by Sjaak | Feb 6, 2018 | arm-cortex, Blog, gd32, LED, STM vs GD32, stm32 |
The defacto ‘hello world’ for microcontrollers is blink a LED at a steady rate. This is exactly what I’m going to do today. I made a small 5×5 development board, soldered it up and started programming. In this first example we not gonna use...
by Sjaak | Jan 31, 2018 | arm-cortex, Blog, gd32, STM vs GD32, stm32 |
I locked myself into the basement with a couple of PCBs, chips and fresh flux for a couple of days. For the STM32F103 vs GD32F103 challenge I needed to have two identical boards with a different microcontroller. As far as I could judge both chips are legit and not...
by Sjaak | Jan 18, 2018 | arm-cortex, Blog, gd32, stm32, testing |
Most of us do know the ST line of ARM chips called STM32. They come in multiple flavours and the STM32F103 is one of the most common entry level family of chips. They are called by ST as mainstream. They are a full featured 32 bit ARM Cortex M3 chip running at...
by Sjaak | Dec 4, 2017 | arm-cortex, Blog, gd32, stm32 |
It has been a while since I wrote about ARM development. I recently made a Black Magic Probe (BMP) clone which acts different then the original. The BMP can source power to the target, but on my version control signal is inverted. Not a big deal, but can give...
