diff options
Diffstat (limited to 'c/src/lib/libcpu/arm/lpc22xx/timer/timer.c')
| -rw-r--r-- | c/src/lib/libcpu/arm/lpc22xx/timer/timer.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/c/src/lib/libcpu/arm/lpc22xx/timer/timer.c b/c/src/lib/libcpu/arm/lpc22xx/timer/timer.c index 10449ee87f..ad73aeda3c 100644 --- a/c/src/lib/libcpu/arm/lpc22xx/timer/timer.c +++ b/c/src/lib/libcpu/arm/lpc22xx/timer/timer.c @@ -1,28 +1,24 @@ -/* - * RTL22xx board Timer driver +/** + * @file + * @brief RTL22xx board Timer driver * * This uses Timer1 for timing measurments. + */ + +/* + * By Ray Xu <rayx.cn@gmail.com>, modify form Mc9328mxl RTEMS DSP * - * By Ray xu<rayx.cn@gmail.com>, modify form Mc9328mxl RTEMS DSP - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - * - * Notes: - * This file manages the benchmark timer used by the RTEMS Timing Test - * Suite. Each measured time period is demarcated by calls to - * benchmark_timer_initialize() and benchmark_timer_read(). benchmark_timer_read() usually returns - * the number of microseconds since benchmark_timer_initialize() exitted. - * - * It is important that the timer start/stop overhead be determined - * when porting or modifying this code. -*/ + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ -#include <rtems.h> #include <bsp.h> +#include <rtems.h> +#include <rtems/btimer.h> #include <lpc22xx.h> #include "lpc_timer.h" + uint32_t g_start; uint32_t g_freq; @@ -52,7 +48,7 @@ void benchmark_timer_initialize( void ) /* This value is in microseconds. */ #define LEAST_VALID 1 /* Don't trust a clicks value lower than this */ -int benchmark_timer_read( void ) +benchmark_timer_t benchmark_timer_read( void ) { return (T0TC/(LPC22xx_Fpclk/1000000)); /* |