diff options
| -rw-r--r-- | bsp/nrf5x/docs/images/nrf52832.png | bin | 0 -> 747242 bytes | |||
| -rw-r--r-- | bsp/nrf5x/libraries/drivers/SConscript | 3 | ||||
| -rw-r--r-- | bsp/nrf5x/libraries/drivers/drv_hwtimer.c | 321 | ||||
| -rw-r--r-- | bsp/nrf5x/nrf52832/README.md | 24 | ||||
| -rw-r--r-- | bsp/nrf5x/nrf52832/board/Kconfig | 51 |
5 files changed, 387 insertions, 12 deletions
diff --git a/bsp/nrf5x/docs/images/nrf52832.png b/bsp/nrf5x/docs/images/nrf52832.png Binary files differnew file mode 100644 index 0000000000..ca63163e12 --- /dev/null +++ b/bsp/nrf5x/docs/images/nrf52832.png diff --git a/bsp/nrf5x/libraries/drivers/SConscript b/bsp/nrf5x/libraries/drivers/SConscript index 7c2a47a734..2dfe2fdb6f 100644 --- a/bsp/nrf5x/libraries/drivers/SConscript +++ b/bsp/nrf5x/libraries/drivers/SConscript @@ -39,6 +39,9 @@ if GetDepend(['BSP_USING_WDT']): if GetDepend(['BSP_USING_ONCHIP_RTC']): src += ['drv_rtc.c'] + +if GetDepend(['BSP_USING_TIM']): + src += ['drv_hwtimer.c'] path = [cwd] diff --git a/bsp/nrf5x/libraries/drivers/drv_hwtimer.c b/bsp/nrf5x/libraries/drivers/drv_hwtimer.c new file mode 100644 index 0000000000..33337cf678 --- /dev/null +++ b/bsp/nrf5x/libraries/drivers/drv_hwtimer.c @@ -0,0 +1,321 @@ +/* + * Copyright (c) 2006-2021, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2021-11-21 chenyingchun first version + */ +#include <rtthread.h> +#include <rtdevice.h> +#include <board.h> +#include <nrfx_timer.h> + +#ifdef SOFTDEVICE_PRESENT +#ifdef BSP_USING_TIM0 +#error "TIMER0 cannot be used when SOFTDEVICE has been used." +#endif +#endif + +#ifdef BSP_USING_TIM + +#define LOG_TAG "drv.hwtimer" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +#ifdef RT_USING_HWTIMER + +#ifndef TIM_DEV_INFO_CONFIG +// maxfreq and minfreq unit is HZ +#define TIM_DEV_INFO_CONFIG \ + { \ + .maxfreq = 16000000, \ + .minfreq = 31250, \ + .maxcnt = 0xFFFFFFFF, \ + .cntmode = HWTIMER_CNTMODE_UP, \ + } +#endif + +typedef struct +{ + nrfx_timer_t timer_inst; + nrfx_timer_config_t timer_cfg; + nrf_timer_cc_channel_t cc_channel; +}nrf5x_timer_info_t; + +struct nrf5x_hwtimer +{ + rt_hwtimer_t timer_device; + nrf5x_timer_info_t timer_info; + char *name; +}; + +static struct nrf5x_hwtimer nrf5x_hwtimer_obj[] = +{ +#ifdef BSP_USING_TIM0 + { + .timer_info.timer_inst = NRFX_TIMER_INSTANCE(0), + .timer_info.timer_cfg = NRFX_TIMER_DEFAULT_CONFIG, + .timer_info.cc_channel = NRF_TIMER_CC_CHANNEL0, + .name = "timer0", + }, +#endif + +#ifdef BSP_USING_TIM1 + { + .timer_info.timer_inst = NRFX_TIMER_INSTANCE(1), + .timer_info.timer_cfg = NRFX_TIMER_DEFAULT_CONFIG, + .timer_info.cc_channel = NRF_TIMER_CC_CHANNEL1, + .name = "timer1", + }, +#endif + +#ifdef BSP_USING_TIM2 + { + .timer_info.timer_inst = NRFX_TIMER_INSTANCE(2), + .timer_info.timer_cfg = NRFX_TIMER_DEFAULT_CONFIG, + .timer_info.cc_channel = NRF_TIMER_CC_CHANNEL2, + .name = "timer2", + }, +#endif + +#ifdef BSP_USING_TIM3 + { + .timer_info.timer_inst = NRFX_TIMER_INSTANCE(3), + .timer_info.timer_cfg = NRFX_TIMER_DEFAULT_CONFIG, + .timer_info.cc_channel = NRF_TIMER_CC_CHANNEL3, + .name = "timer3", + }, +#endif + +#ifdef BSP_USING_TIM4 + { + .timer_info.timer_inst = NRFX_TIMER_INSTANCE(4), + .timer_info.timer_cfg = NRFX_TIMER_DEFAULT_CONFIG, + .timer_info.cc_channel = NRF_TIMER_CC_CHANNEL4, + .name = "timer4", + } +#endif +}; + +static void timer_callback(nrf_timer_event_t event_type, void* p_context) +{ + rt_hwtimer_t *timer_device = (struct rt_hwtimer_device *)p_context; + + // no matter what event_type is(NRF_TIMER_EVENT_COMPARE0 or others), call same function "rt_device_hwtimer_isr" + LOG_D("timer_callback event_type = %d, inst_id = %d, cc conunt = %d\r\n", + event_type, timer_info->timer_inst.instance_id, timer_info->timer_inst.cc_channel_count); + rt_device_hwtimer_isr(timer_device); +} + +static void timer_init(struct rt_hwtimer_device *timer, rt_uint32_t state) +{ + nrf5x_timer_info_t *timer_info = RT_NULL; + nrfx_timer_config_t *timer_cfg = RT_NULL; + + RT_ASSERT(timer != RT_NULL); + if (state) + { + timer_info = (nrf5x_timer_info_t *)timer->parent.user_data; + timer_cfg = &(timer_info->timer_cfg); + timer_cfg->bit_width = NRF_TIMER_BIT_WIDTH_32; + timer_cfg->p_context = timer; + + nrfx_timer_init(&(timer_info->timer_inst), timer_cfg, timer_callback); + } +} + +static rt_err_t timer_start(rt_hwtimer_t *timer, rt_uint32_t t, rt_hwtimer_mode_t opmode) +{ + nrf5x_timer_info_t *timer_info = RT_NULL; + nrf_timer_short_mask_t mask = NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK; + + RT_ASSERT(timer != RT_NULL); + + timer_info = (nrf5x_timer_info_t *)timer->parent.user_data; + + if (opmode == HWTIMER_MODE_ONESHOT) + { + // means TIMER_SHORTS_COMPARE0_STOP_Msk or TIMER_SHORTS_COMPARE1_STOP_Msk ..., according to cc_channel. + mask = (nrf_timer_short_mask_t)(1 << (timer_info->cc_channel + 8)); + } + else + { + // means TIMER_SHORTS_COMPARE0_CLEAR_Msk or TIMER_SHORTS_COMPARE1_CLEAR_Msk ..., according to cc_channel. + mask = (nrf_timer_short_mask_t)(1 << timer_info->cc_channel); + } + + nrfx_timer_extended_compare(&(timer_info->timer_inst), timer_info->cc_channel, t, mask, true); + nrfx_timer_enable(&(timer_info->timer_inst)); + return RT_EOK; +} + +static void timer_stop(rt_hwtimer_t *timer) +{ + nrf5x_timer_info_t *timer_info = RT_NULL; + + RT_ASSERT(timer != RT_NULL); + + timer_info = (nrf5x_timer_info_t *)timer->parent.user_data; + + nrfx_timer_disable(&(timer_info->timer_inst)); + + /* set time count register to zero*/ + nrfx_timer_clear(&(timer_info->timer_inst)); +} + +static nrf_timer_frequency_t frequency_convert(rt_uint32_t freq) +{ + nrf_timer_frequency_t frequency = NRF_TIMER_FREQ_1MHz; + switch (freq) + { + case 16000000: + { + frequency = NRF_TIMER_FREQ_16MHz; + break; + } + + case 8000000: + { + frequency = NRF_TIMER_FREQ_8MHz; + break; + } + + case 2000000: + { + frequency = NRF_TIMER_FREQ_2MHz; + break; + } + + case 1000000: + { + frequency = NRF_TIMER_FREQ_1MHz; + break; + } + + case 500000: + { + frequency = NRF_TIMER_FREQ_500kHz; + break; + } + + case 250000: + { + frequency = NRF_TIMER_FREQ_250kHz; + break; + } + + case 125000: + { + frequency = NRF_TIMER_FREQ_125kHz; + break; + } + + case 62500: + { + frequency = NRF_TIMER_FREQ_62500Hz; + break; + } + + case 31250: + { + frequency = NRF_TIMER_FREQ_31250Hz; + break; + } + + default: + { + break; + } + } + + return frequency; +} + +static rt_err_t timer_ctrl(rt_hwtimer_t *timer, rt_uint32_t cmd, void *arg) +{ + rt_err_t result = RT_EOK; + nrf5x_timer_info_t *timer_info = RT_NULL; + nrfx_timer_t *timer_inst = RT_NULL; + + RT_ASSERT(timer != RT_NULL); + RT_ASSERT(arg != RT_NULL); + + timer_info = (nrf5x_timer_info_t *)timer->parent.user_data; + timer_inst = &(timer_info->timer_inst); + + switch (cmd) + { + case HWTIMER_CTRL_FREQ_SET: + { + rt_uint32_t freq; + /* set timer frequence */ + freq = *((rt_uint32_t *)arg); + + nrf_timer_frequency_set(timer_inst->p_reg, frequency_convert(freq)); + break; + } + default: + { + result = -RT_ENOSYS; + break; + } + + } + + return result; +} + +static rt_uint32_t timer_counter_get(rt_hwtimer_t *timer) +{ + rt_uint32_t count = 0; + nrf5x_timer_info_t *timer_info = RT_NULL; + + RT_ASSERT(timer != RT_NULL); + + timer_info = (nrf5x_timer_info_t *)timer->parent.user_data; + + // capture method will copy the current counter register to the specified cc channel (here is NRF_TIMER_CC_CHANNEL5). + // the specified cc channel cannot be same with the already used cc channels + count = nrfx_timer_capture(&(timer_info->timer_inst), NRF_TIMER_CC_CHANNEL5); + return count; +} + +static const struct rt_hwtimer_info _info = TIM_DEV_INFO_CONFIG; +static const struct rt_hwtimer_ops _ops = +{ + .init = timer_init, + .start = timer_start, + .stop = timer_stop, + .count_get = timer_counter_get, + .control = timer_ctrl, +}; + +static int nrf5x_hwtimer_init(void) +{ + int i = 0; + int result = RT_EOK; + + for (i = 0; i < sizeof(nrf5x_hwtimer_obj) / sizeof(nrf5x_hwtimer_obj[0]); i++) + { + nrf5x_hwtimer_obj[i].timer_device.info = &_info; + nrf5x_hwtimer_obj[i].timer_device.ops = &_ops; + if (rt_device_hwtimer_register(&nrf5x_hwtimer_obj[i].timer_device, nrf5x_hwtimer_obj[i].name, &nrf5x_hwtimer_obj[i].timer_info) == RT_EOK) + { + LOG_D("%s register success", nrf5x_hwtimer_obj[i].name); + } + else + { + LOG_E("%s register failed", nrf5x_hwtimer_obj[i].name); + result = -RT_ERROR; + } + } + + return result; +} +INIT_BOARD_EXPORT(nrf5x_hwtimer_init); + +#endif /* RT_USING_HWTIMER */ +#endif /* BSP_USING_TIM */ + diff --git a/bsp/nrf5x/nrf52832/README.md b/bsp/nrf5x/nrf52832/README.md index e5f46d456f..a1c8a0742d 100644 --- a/bsp/nrf5x/nrf52832/README.md +++ b/bsp/nrf5x/nrf52832/README.md @@ -14,7 +14,7 @@ PCA10040-nRF52832是Nordic 官方的开发板，搭载nRF52832 芯片，基于AR 开发板外观如下图所示 - + PCA10040-nrf52832开发板常用 **板载资源** 如下： @@ -34,17 +34,17 @@ PCA10040-nrf52832开发板常用 **板载资源** 如下： 本 BSP 目前对外设的支持情况如下： -| **片上外设** | **支持情况** | **备注** | -| :----------- | :----------: | :------: | -| GPIO | 支持 | GPION | -| UART | 支持 | UART0 | -| PWM | 支持 | 支持 | -| SPI | 支持 | 支持 | -| RTC | 支持 | | -| ADC | 支持 | | -| | | | -| | | | -| | | | +| **片上外设** | **支持情况** | **备注** | +| :----------- | :----------: | :-----------: | +| GPIO | 支持 | GPION | +| UART | 支持 | UART0 | +| PWM | 支持 | 支持 | +| SPI | 支持 | 支持 | +| RTC | 支持 | | +| ADC | 支持 | | +| TIMER | 支持 | TIMER0~TIMER4 | +| | | | +| | | | diff --git a/bsp/nrf5x/nrf52832/board/Kconfig b/bsp/nrf5x/nrf52832/board/Kconfig index 416722fd64..bc61640851 100644 --- a/bsp/nrf5x/nrf52832/board/Kconfig +++ b/bsp/nrf5x/nrf52832/board/Kconfig @@ -419,6 +419,57 @@ menu "On-chip Peripheral Drivers" range 0 2 default 2 endif + + config BSP_USING_TIM + bool "Enable TIMER" + select RT_USING_HWTIMER + default n + if BSP_USING_TIM + config NRFX_TIMER_ENABLED + int + default 1 + config BSP_USING_TIM0 + bool "Enable TIMER0" + default n + if BSP_USING_TIM0 + config NRFX_TIMER0_ENABLED + int + default 1 + endif + config BSP_USING_TIM1 + bool "Enable TIMER1" + default n + if BSP_USING_TIM1 + config NRFX_TIMER1_ENABLED + int + default 1 + endif + config BSP_USING_TIM2 + bool "Enable TIMER2" + default n + if BSP_USING_TIM2 + config NRFX_TIMER2_ENABLED + int + default 1 + endif + config BSP_USING_TIM3 + bool "Enable TIMER3" + default n + if BSP_USING_TIM3 + config NRFX_TIMER3_ENABLED + int + default 1 + endif + + config BSP_USING_TIM4 + bool "Enable TIMER4" + default n + if BSP_USING_TIM4 + config NRFX_TIMER4_ENABLED + int + default 1 + endif + endif endmenu choice |
