Hauke Petersen
6 years ago
committed by
GitHub
14 changed files with 182 additions and 351 deletions
@ -1,135 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Freie Universität Berlin |
||||
* |
||||
* This file is subject to the terms and conditions of the GNU Lesser General |
||||
* Public License v2.1. See the file LICENSE in the top level directory for more |
||||
* details. |
||||
*/ |
||||
|
||||
/**
|
||||
* @ingroup cpu_nrf51822 |
||||
* @{ |
||||
* |
||||
* @file |
||||
* @brief Real-time timer driver implementation |
||||
* |
||||
* @author Hauke Petersen <hauke.petersen@fu-berlin.de> |
||||
* |
||||
* @} |
||||
*/ |
||||
|
||||
#include <stdlib.h> |
||||
#include <stdio.h> |
||||
|
||||
#include "cpu.h" |
||||
#include "board.h" |
||||
#include "periph_conf.h" |
||||
#include "periph/rtt.h" |
||||
|
||||
/* guard file in case no RTC device was specified */ |
||||
#if RTT_NUMOF |
||||
|
||||
/*
|
||||
* @brief Callback for the active alarm |
||||
*/ |
||||
static rtt_cb_t alarm_cb; |
||||
|
||||
/**
|
||||
* @brief Argument for the active alarm callback |
||||
*/ |
||||
static void *alarm_arg; |
||||
|
||||
/**
|
||||
* @brief Callback for the overflow event |
||||
*/ |
||||
static rtt_cb_t overflow_cb; |
||||
|
||||
/**
|
||||
* @brief Argument for the overflow callback |
||||
*/ |
||||
static void *overflow_arg; |
||||
|
||||
void rtt_init(void) |
||||
{ |
||||
rtt_poweron(); |
||||
|
||||
/* configure interrupt */ |
||||
NVIC_SetPriority(RTT_IRQ, RTT_IRQ_PRIO); |
||||
NVIC_EnableIRQ(RTT_IRQ); |
||||
|
||||
/* set prescaler */ |
||||
RTT_DEV->PRESCALER = RTT_PRESCALER; |
||||
|
||||
/* enable the low-frequency clock */ |
||||
NRF_CLOCK->TASKS_LFCLKSTART = 1; |
||||
|
||||
/* start the actual RTT thing */ |
||||
RTT_DEV->TASKS_START = 1; |
||||
} |
||||
|
||||
void rtt_set_overflow_cb(rtt_cb_t cb, void *arg) |
||||
{ |
||||
overflow_cb = cb; |
||||
overflow_arg = arg; |
||||
RTT_DEV->INTENSET = RTC_INTENSET_OVRFLW_Msk; |
||||
} |
||||
|
||||
void rtt_clear_overflow_cb(void) |
||||
{ |
||||
RTT_DEV->INTENCLR = RTC_INTENCLR_OVRFLW_Msk; |
||||
} |
||||
|
||||
uint32_t rtt_get_counter(void) |
||||
{ |
||||
return RTT_DEV->COUNTER; |
||||
} |
||||
|
||||
void rtt_set_counter(uint32_t counter) |
||||
{ |
||||
(void) counter; |
||||
/* not supported for the NRF51822? -> could not find out how to do this */ |
||||
} |
||||
|
||||
void rtt_set_alarm(uint32_t alarm, rtt_cb_t cb, void *arg) |
||||
{ |
||||
alarm_cb = cb; |
||||
alarm_arg = arg; |
||||
RTT_DEV->CC[0] = (alarm & RTT_MAX_VALUE); |
||||
RTT_DEV->INTENSET = RTC_INTENSET_COMPARE0_Msk; |
||||
} |
||||
|
||||
uint32_t rtt_get_alarm(void) |
||||
{ |
||||
return RTT_DEV->CC[0]; |
||||
} |
||||
|
||||
void rtt_clear_alarm(void) |
||||
{ |
||||
RTT_DEV->INTENCLR = RTC_INTENSET_COMPARE0_Msk; |
||||
} |
||||
|
||||
void rtt_poweron(void) |
||||
{ |
||||
RTT_DEV->POWER = 1; |
||||
} |
||||
|
||||
void rtt_poweroff(void) |
||||
{ |
||||
RTT_DEV->POWER = 0; |
||||
} |
||||
|
||||
void RTT_ISR(void) |
||||
{ |
||||
if (RTT_DEV->EVENTS_COMPARE[0] == 1) { |
||||
RTT_DEV->EVENTS_COMPARE[0] = 0; |
||||
RTT_DEV->INTENCLR = RTC_INTENSET_COMPARE0_Msk; |
||||
alarm_cb(alarm_arg); |
||||
} |
||||
if (RTT_DEV->EVENTS_OVRFLW == 1) { |
||||
RTT_DEV->EVENTS_OVRFLW = 0; |
||||
overflow_cb(overflow_arg); |
||||
} |
||||
cortexm_isr_end(); |
||||
} |
||||
|
||||
#endif /* RTT_NUMOF */ |
||||
@ -1,127 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2015 Jan Wagner <mail@jwagner.eu> |
||||
* 2016 Freie Universität Berlin |
||||
* |
||||
* This file is subject to the terms and conditions of the GNU Lesser |
||||
* General Public License v2.1. See the file LICENSE in the top level |
||||
* directory for more details. |
||||
*/ |
||||
|
||||
/**
|
||||
* @ingroup cpu_nrf52 |
||||
* @{ |
||||
* |
||||
* @file |
||||
* @brief Implementation of the peripheral real-time timer interface |
||||
* |
||||
* @author Hauke Petersen <hauke.petersen@fu-berlin.de> |
||||
* @author Jan Wagner <mail@jwagner.eu> |
||||
* |
||||
* @} |
||||
*/ |
||||
|
||||
#include <stdlib.h> |
||||
|
||||
#include "cpu.h" |
||||
#include "board.h" |
||||
#include "periph_conf.h" |
||||
#include "periph/rtt.h" |
||||
|
||||
/*
|
||||
* @brief Callback for the active alarm |
||||
*/ |
||||
static rtt_cb_t alarm_cb; |
||||
|
||||
/**
|
||||
* @brief Argument for the active alarm callback |
||||
*/ |
||||
static void *alarm_arg; |
||||
|
||||
/**
|
||||
* @brief Callback for the overflow event |
||||
*/ |
||||
static rtt_cb_t overflow_cb; |
||||
|
||||
/**
|
||||
* @brief Argument for the overflow callback |
||||
*/ |
||||
static void *overflow_arg; |
||||
|
||||
void rtt_init(void) |
||||
{ |
||||
/* configure interrupt */ |
||||
NVIC_EnableIRQ(RTT_IRQ); |
||||
/* set prescaler */ |
||||
RTT_DEV->PRESCALER = RTT_PRESCALER; |
||||
/* enable the low-frequency clock */ |
||||
NRF_CLOCK->TASKS_LFCLKSTART = 1; |
||||
/* start the actual RTT thing */ |
||||
RTT_DEV->TASKS_START = 1; |
||||
} |
||||
|
||||
void rtt_set_overflow_cb(rtt_cb_t cb, void *arg) |
||||
{ |
||||
overflow_cb = cb; |
||||
overflow_arg = arg; |
||||
RTT_DEV->INTENSET = RTC_INTENSET_OVRFLW_Msk; |
||||
} |
||||
|
||||
void rtt_clear_overflow_cb(void) |
||||
{ |
||||
RTT_DEV->INTENCLR = RTC_INTENCLR_OVRFLW_Msk; |
||||
} |
||||
|
||||
uint32_t rtt_get_counter(void) |
||||
{ |
||||
return RTT_DEV->COUNTER; |
||||
} |
||||
|
||||
void rtt_set_counter(uint32_t counter) |
||||
{ |
||||
(void) counter; |
||||
/* not supported by the nRF52 */ |
||||
} |
||||
|
||||
void rtt_set_alarm(uint32_t alarm, rtt_cb_t cb, void *arg) |
||||
{ |
||||
alarm_cb = cb; |
||||
alarm_arg = arg; |
||||
RTT_DEV->CC[0] = (alarm & RTT_MAX_VALUE); |
||||
RTT_DEV->INTENSET = RTC_INTENSET_COMPARE0_Msk; |
||||
} |
||||
|
||||
uint32_t rtt_get_alarm(void) |
||||
{ |
||||
return RTT_DEV->CC[0]; |
||||
} |
||||
|
||||
void rtt_clear_alarm(void) |
||||
{ |
||||
RTT_DEV->INTENCLR = RTC_INTENSET_COMPARE0_Msk; |
||||
} |
||||
|
||||
void rtt_poweron(void) |
||||
{ |
||||
RTT_DEV->TASKS_START = 1; |
||||
} |
||||
|
||||
void rtt_poweroff(void) |
||||
{ |
||||
RTT_DEV->TASKS_STOP = 1; |
||||
} |
||||
|
||||
void RTT_ISR(void) |
||||
{ |
||||
if (RTT_DEV->EVENTS_COMPARE[0] == 1) { |
||||
RTT_DEV->EVENTS_COMPARE[0] = 0; |
||||
RTT_DEV->INTENCLR = RTC_INTENSET_COMPARE0_Msk; |
||||
alarm_cb(alarm_arg); |
||||
} |
||||
|
||||
if (RTT_DEV->EVENTS_OVRFLW == 1) { |
||||
RTT_DEV->EVENTS_OVRFLW = 0; |
||||
overflow_cb(overflow_arg); |
||||
} |
||||
|
||||
cortexm_isr_end(); |
||||
} |
||||
@ -0,0 +1,137 @@
|
||||
/*
|
||||
* Copyright (C) 2014-2017 Freie Universität Berlin |
||||
* 2015 Jan Wagner <mail@jwagner.eu> |
||||
* |
||||
* This file is subject to the terms and conditions of the GNU Lesser |
||||
* General Public License v2.1. See the file LICENSE in the top level |
||||
* directory for more details. |
||||
*/ |
||||
|
||||
/**
|
||||
* @ingroup cpu_nrf5x_common |
||||
* @{ |
||||
* |
||||
* @file |
||||
* @brief RTT implementation for NRF5x CPUs |
||||
* |
||||
* @author Hauke Petersen <hauke.petersen@fu-berlin.de> |
||||
* @author Jan Wagner <mail@jwagner.eu> |
||||
* |
||||
* @} |
||||
*/ |
||||
|
||||
#include "cpu.h" |
||||
#include "nrf_clock.h" |
||||
#include "periph/rtt.h" |
||||
|
||||
/* get the IRQ configuration */ |
||||
#if (RTT_DEV == 1) |
||||
#define DEV NRF_RTC1 |
||||
#define ISR isr_rtc1 |
||||
#define IRQn RTC1_IRQn |
||||
#elif (RTT_DEV == 2) |
||||
#define DEV NRF_RTC2 |
||||
#define ISR isr_rtc2 |
||||
#define IRQn RTC2_IRQn |
||||
#else |
||||
#error "RTT configuration: invalid or no RTC device specified (RTT_DEV)" |
||||
#endif |
||||
|
||||
#define LFCLK_FREQ (32768U) |
||||
|
||||
/* allocate memory for callbacks and their args */ |
||||
static rtt_cb_t alarm_cb; |
||||
static void *alarm_arg; |
||||
static rtt_cb_t overflow_cb; |
||||
static void *overflow_arg; |
||||
|
||||
void rtt_init(void) |
||||
{ |
||||
/* enable the low-frequency clock */ |
||||
clock_start_lf(); |
||||
/* make sure device is powered */ |
||||
#ifdef CPU_FAM_NRF51 |
||||
DEV->POWER = 1; |
||||
#endif |
||||
/* stop the RTT during configuration */ |
||||
DEV->TASKS_STOP = 1; |
||||
/* configure interrupt */ |
||||
NVIC_EnableIRQ(IRQn); |
||||
/* set prescaler */ |
||||
DEV->PRESCALER = (LFCLK_FREQ / RTT_FREQUENCY) - 1; |
||||
/* start the actual RTT thing */ |
||||
DEV->TASKS_START = 1; |
||||
} |
||||
|
||||
void rtt_set_overflow_cb(rtt_cb_t cb, void *arg) |
||||
{ |
||||
overflow_cb = cb; |
||||
overflow_arg = arg; |
||||
DEV->INTENSET = RTC_INTENSET_OVRFLW_Msk; |
||||
} |
||||
|
||||
void rtt_clear_overflow_cb(void) |
||||
{ |
||||
DEV->INTENCLR = RTC_INTENCLR_OVRFLW_Msk; |
||||
} |
||||
|
||||
uint32_t rtt_get_counter(void) |
||||
{ |
||||
return DEV->COUNTER; |
||||
} |
||||
|
||||
void rtt_set_counter(uint32_t counter) |
||||
{ |
||||
(void) counter; |
||||
/* not supported by the nRF5x */ |
||||
} |
||||
|
||||
void rtt_set_alarm(uint32_t alarm, rtt_cb_t cb, void *arg) |
||||
{ |
||||
alarm_cb = cb; |
||||
alarm_arg = arg; |
||||
DEV->CC[0] = (alarm & RTT_MAX_VALUE); |
||||
DEV->INTENSET = RTC_INTENSET_COMPARE0_Msk; |
||||
} |
||||
|
||||
uint32_t rtt_get_alarm(void) |
||||
{ |
||||
return DEV->CC[0]; |
||||
} |
||||
|
||||
void rtt_clear_alarm(void) |
||||
{ |
||||
DEV->INTENCLR = RTC_INTENSET_COMPARE0_Msk; |
||||
} |
||||
|
||||
void rtt_poweron(void) |
||||
{ |
||||
#ifdef CPU_FAM_NRF51 |
||||
DEV->POWER = 1; |
||||
#endif |
||||
DEV->TASKS_START = 1; |
||||
} |
||||
|
||||
void rtt_poweroff(void) |
||||
{ |
||||
DEV->TASKS_STOP = 1; |
||||
#ifdef CPU_FAM_NRF51 |
||||
DEV->POWER = 0; |
||||
#endif |
||||
} |
||||
|
||||
void ISR(void) |
||||
{ |
||||
if (DEV->EVENTS_COMPARE[0] == 1) { |
||||
DEV->EVENTS_COMPARE[0] = 0; |
||||
DEV->INTENCLR = RTC_INTENSET_COMPARE0_Msk; |
||||
alarm_cb(alarm_arg); |
||||
} |
||||
|
||||
if (DEV->EVENTS_OVRFLW == 1) { |
||||
DEV->EVENTS_OVRFLW = 0; |
||||
overflow_cb(overflow_arg); |
||||
} |
||||
|
||||
cortexm_isr_end(); |
||||
} |
||||
Loading…
Reference in new issue