Sjaak writes, “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.” More details at smdprutser.nl. Check out the video after the break.
Tag Archives: gd32
STM32F103 vs GD32F103 round 3: UART
Here’s the part 3 of Sjaak’s post comparing the GD32 to the 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 […]
STM32F103 vs GD32F103 round 2: Blink a LED
A follow-up to the STM32F103 vs GD32F103 round 1- Solderability post, Sjaak writes: 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 […]
STM32F103 vs GD32F103 round 1: Solderability
Sjaak writes: 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 counterfeits as we bought […]
First GD32 tests
Sjaak has published a new build, the STM32/GD32F103 QFN32 breakout board: Uptill now I used 0603 sized resistors and capacitors but for this project I switched to 0402 to save a few mm on the board. I have soldered many challenging chip packages so I felt confident. The technique is the same as for bigger […]