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wuxx / u-things

iot project with USB interface
GNU General Public License v2.0
1 stars 2 forks source link

rewrite the udelay #3

Closed wuxx closed 7 years ago

wuxx commented 7 years ago

rewrite the udelay(), without the timer. (just use volatile inline asm)

wuxx commented 7 years ago

no need now, use systick is just ok.