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Tiva Timer: Revert the previous change. Thre is a better way to handler timerout interrupts.

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Removed setting of the initial timer interval load value (or, rather, it is always set to zero for a free-running timer).  Also, do not unconditional enable the timer out interrupt.  The timerout interrupt is not not enabled until tiva_timer32_setinterval() is called.
This commit is contained in:
Gregory Nutt 2015-01-14 07:33:59 -06:00
parent ef409169fa
commit f374e5fde4
3 changed files with 1 additions and 12 deletions
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4
configs/dk-tm4c129x/Kconfig
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@ -65,10 +65,6 @@ config DK_TM4C129X_TIMER_DEVNAME
string "Timer device name"
default "/dev/timer0"
config DK_TM4C129X_TIMER_TIMEOUT
int "Timer interval (microseconds)"
default 10000
config DK_TM4C129X_TIMER_ALTCLK
bool "Use alternate clock source"
default n

1
configs/dk-tm4c129x/README.txt
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@ -684,7 +684,6 @@ Timers
Application Configure -> Examples -> Timer Example
CONFIG_EXAMPLES_TIMER=y
CONFIG_EXAMPLE_TIMER_DEVNAME="/dev/timer0"
CONFIG_EXAMPLE_TIMER_INTERVAL=1000000
CONFIG_EXAMPLE_TIMER_DELAY=100000
CONFIG_EXAMPLE_TIMER_NSAMPLES=20

8
configs/dk-tm4c129x/src/tm4c_timer.c
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@ -83,10 +83,6 @@
# define CONFIG_DK_TM4C129X_TIMER_DEVNAME "/dev/timer0"
#endif
#ifndef CONFIG_DK_TM4C129X_TIMER_TIMEOUT
# define CONFIG_DK_TM4C129X_TIMER_TIMEOUT 10000
#endif
#undef CONFIG_DK_TM4C129X_TIMER_ALTCLK
#define ALTCLK false
@ -107,10 +103,8 @@ int tiva_timer_initialize(void)
int ret;
timvdbg("Registering TIMER%d at %s\n", GPTM, CONFIG_DK_TM4C129X_TIMER_DEVNAME);
timvdbg("Initial timer period: %d uS\n", CONFIG_DK_TM4C129X_TIMER_TIMEOUT);
ret = tiva_timer_register(CONFIG_DK_TM4C129X_TIMER_DEVNAME, GPTM,
CONFIG_DK_TM4C129X_TIMER_TIMEOUT, ALTCLK);
ret = tiva_timer_register(CONFIG_DK_TM4C129X_TIMER_DEVNAME, GPTM, ALTCLK);
if (ret < 0)
{
timdbg("ERROR: Failed to register timer driver: %d\n", ret);