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STM32F103 vs GD32F103 Round 4: SPI Master

STM32F103 vs GD32F103 Round 4: SPI Master

by Sjaak | Jun 5, 2018 | arm-cortex, Blog, gd32, STM vs GD32, stm32 | 9 comments

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...
STM32F103 vs GD32F103 Round 3: UART

STM32F103 vs GD32F103 Round 3: UART

by Sjaak | Mar 15, 2018 | arm-cortex, Blog, gd32, STM vs GD32, stm32 | 10 comments

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...
STM32F103 vs GD32F103 Round 2: Blink a LED

STM32F103 vs GD32F103 Round 2: Blink a LED

by Sjaak | Feb 6, 2018 | arm-cortex, Blog, gd32, LED, STM vs GD32, stm32 | 4 comments

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...
STM32F103 vs GD32F103 Round 1: Solderability

STM32F103 vs GD32F103 Round 1: Solderability

by Sjaak | Jan 31, 2018 | arm-cortex, Blog, gd32, STM vs GD32, stm32 | 4 comments

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...

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