blackmagic

History

chrysn bc5146b710 unified systick handling

the only change this results in in the example binaries is in the
hackrf-jellybean/systick example, where the the check in
systick_set_clocksource for overflowing from the stm32 area gets used.

2012-10-18 22:48:14 +02:00

Makefile

Work on scs.h register and also nvic.h.

2012-06-09 18:27:42 +02:00

README

Work on scs.h register and also nvic.h.

2012-06-09 18:27:42 +02:00

systickdemo.c

unified systick handling

2012-10-18 22:48:14 +02:00

README

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README
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This program exercises the SysTick Interrupt of ARM CortexM4 on Jellybean's LPC43xx.
It also enable Cycle Counter to be used for accurate delay independant from Clock Frequency.
The Demo Use Cycle Counter and SysTick Interrupt to compute number of cycles executed per second.
The result is LED1/2 & 3 Blink with an accurate 1s Period (using SysTick) (Checked visualy and with Oscilloscope).