STM32F103C8T6 ARM STM32 Minimum System Development Board
October 26, 2020
STM32F103C6T6 versus STM32F103C8T6
I have only ever worked with the C8T6, but I noticed a seller offering the STMF103C6T6
for a doller less per board and wondered what was up.
- 32 of flash instead of 64k
- 10k of SRAM instead of 20k
- 3 timers instead of 4
- 2 uart instead of 3
- 1 i2c instead of 2
- 1 spi instead of 2
This is all fine, as long as you know what you are getting and don't buy the C6 by mistake when
you think you are buying the C8. Also note that some (many?) C8 devices actually have 128K of usable flash.
Blue Pill and clone chips
I think most people are aware by now that the STM32F103C8T6 on the blue pill
board is not a part made by ST, despite the labeling.
I am not going to get into the ethics of Chinese cloning here,
but want to talk about the implications of using silicon that may or may
not act according to expectations.
The good news is that I have yet to have any problems related to this,
and in fact some of the clone chips have better specs and/or fixed bugs.
Some recent articles
Weird IDcode issue
I have another page discussing the following error when using the STLINK:
Warn : UNEXPECTED idcode: 0x2ba01477
Error: expected 1 of 1: 0x1ba01477
Feedback? Questions?
Drop me a line!
Tom's Computer Info / tom@mmto.org