Benoît Thébaudeau 5261bb861d cc2538: lpm: Fix RTIMER_NOW() upon wake-up ... When returning from PM1/2, the sleep timer value (used by RTIMER_NOW()) is not up-to-date until a positive edge on the 32-kHz clock has been detected after the system clock restarted. To ensure an updated value is read, wait for a positive transition on the 32-kHz clock by polling the SYS_CTRL_CLOCK_STA.SYNC_32K bit, before reading the sleep timer value. Because of this RTIMER_NOW() fixup, lpm_exit() has to be called at the very beginning of ISRs waking up the SoC. This also ensures that all clocks and timers are enabled at the correct frequency and updated before using them following wake-up. Without this fix, etimers could sometimes (randomly, depending on timings) become ultra slow (observed from 10x to 40x slower than normal) if the system exited PM1/2 very often. This issue occurred more often with PM1. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>		2013-12-05 20:23:29 +01:00
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dev	cc2538: lpm: Fix RTIMER_NOW() upon wake-up	2013-12-05 20:23:29 +01:00
usb	cc2538: usb: Make the GPIO driving the pull-up optional	2013-11-25 15:15:35 +01:00
cc2538.lds	cc2538: Add header file for flash CCA page and use it	2013-12-05 18:45:51 +01:00
clock.c
cpu.c
cpu.h
dbg.c
dbg.h
debug-uart.h
ieee-addr.c
ieee-addr.h
lpm.c	cc2538: lpm: Fix RTIMER_NOW() upon wake-up	2013-12-05 20:23:29 +01:00
lpm.h	cc2538: lpm: Fix RTIMER_NOW() upon wake-up	2013-12-05 20:23:29 +01:00
Makefile.cc2538	cc2538: Make it possible to use a custom linker script	2013-11-15 15:41:58 +01:00
mtarch.h	A massive all-tree automated update of all double inclusion guard #defines that changes from using two underscores as a prefix, which are reserved, to not using two underscores as a prefix	2013-11-24 20:20:11 +01:00
reg.h
rtimer-arch.c	cc2538: lpm: Fix RTIMER_NOW() upon wake-up	2013-12-05 20:23:29 +01:00
rtimer-arch.h
slip-arch.c
spi-arch.h	cc2538: spi: Add enable and disable functions	2013-11-20 14:20:50 +01:00