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| PCB STM32F050 tssop20 |
Feel like I need to explain what type of PCB used in this and other similar projects. This simple 1-sided PCB designed in
Eagle, has dimensions 1"x1.2"(2.5x3cm), and intended to use in compact analog-digital devices. There are two connectors: one for A/D signals (up to
9 channels of
12-bit ADC or in/out for up to
32-bit timers) another for
SWD prog and debugging, power source (+3.3v) and UART(or I2C, or additional PWM).
Recommended values
C10 = 0.1μF
R-R4 = 0-100 Ω
L up to 560 Ω
C11 up to 1μF
BOOT pad (under C11) short on left (grounded)
C1- C9 are optional, usually this pads used for prototyping or temporary components.
Z1 optional too, if used, don't forget change
system_stm32f0xx.c setting to
HSE.
Chip STM32050F4P6 comes with nice
tssop20 package, not so hard to solder even by hand. In my practice solder this package much more easy than tqfp4x or large lqfp packages. On photo early PCB version connected via SWD with programmator on "discovery" board (and also powered from it ).
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