[bsp] [ESP32_C3]add hwtimer support for ESP32C3 (#8263)
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@ -45,7 +45,7 @@ Each peripheral supporting condition for this BSP is as follows:
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| WIFI | Partial support | There are currently some problems, such as `rt_mq_recive` cannot be used in ISR, etc. |
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| BLE | Partially supported | There are currently some problems, such as `NimBLE` running errors after starting for a while |
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| GDBStub | Support | You can use the GDB provided by ESP-IDF by turning on the `BSP_ENABLE_GDBSTUB` switch, which will enter GDB mode after a chip error |
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| HWTIMER | Support |
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Note:
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1. WIFI and BLE cannot be enabled at the same time. When using the BLE driver, be sure to turn off the `RT_USING_WIFI` and `LWIP` switches in `menuconfig`. In addition, due to limited capabilities and lack of debugging equipment, there are problems with WIFI and BLE driver operation. If it can be solved, please contact [timwcx@qq.com](mailto:timwcx@qq.com).
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@ -52,7 +52,7 @@
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| WIFI | 部分支持 | 目前存在一些问题，例如不能在ISR中使用`rt_mq_recive`等 |
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| BLE | 部分支持 | 目前存在一些问题，例如`NimBLE`启动一段时间后运行错误 |
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| GDBStub | 支持 | 通过开启`BSP_ENABLE_GDBSTUB`开关即可使用ESP-IDF所提供的GDB，其会在芯片出错后进入GDB模式 |
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| HWTIMER | 支持 |
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注：
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1、WIFI和BLE不能同时启用，在使用BLE驱动时注意在`menuconfig`中关闭`RT_USING_WIFI`和`LWIP`开关。另外由于能力有限且缺乏调试设备，WIFI和BLE驱动运行都有问题，如果可以解决联系[timwcx@qq.com](mailto:timwcx@qq.com)。
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@ -169,7 +169,7 @@ Linux 下可以使用先前下载的 esptool 进行烧录
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### Linux 下进行烧录
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### Linux
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```sh
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esptool.py -b 115200 --before default_reset --after hard_reset write_flash --flash_mode dio --flash_size detect --flash_freq 80m 0x0 path/to/your/bootloader.bin 0x08000 path/to/your/partition-table.bin 0x010000 path/to/your/rtthread.bin
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@ -76,6 +76,16 @@ menu "On-chip Peripheral Drivers"
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bool "Enable BLE"
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default n
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config BSP_USING_HWTIMER
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bool "Enable HWTIMER"
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select RT_USING_HWTIMER
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default n
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if BSP_USING_HWTIMER
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config BSP_USING_TIMER0
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bool "Enable HWTIMER0"
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default n
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endif
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endmenu
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config BSP_ENABLE_GDBSTUB
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@ -0,0 +1,166 @@
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-11-15 BetMul first version
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*/
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#include "drv_hwtimer.h"
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "driver/gptimer.h"
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#include "sdkconfig.h"
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#ifdef RT_USING_HWTIMER
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/**
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* handle interrupt for hwtimer.
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*/
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static bool mcu_hwtimer_intr_handler(gptimer_handle_t gptimer, const gptimer_alarm_event_data_t *edata, void *user_ctx)
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{
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rt_interrupt_enter();
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rt_hwtimer_t *hwtimer = (rt_hwtimer_t *)user_ctx;
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rt_device_hwtimer_isr(hwtimer);
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rt_interrupt_leave();
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return 0;
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}
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/**
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* init the hwtimer
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*/
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static void mcu_hwtimer_init(rt_hwtimer_t *timer, rt_uint32_t state)
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{
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gptimer_handle_t gptimer = (gptimer_handle_t)timer->parent.user_data;
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// let the gptimer into enable status
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ESP_ERROR_CHECK(gptimer_enable(gptimer));
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}
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/**
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* start the hwtimer, change status into running
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*/
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static rt_err_t mcu_hwtimer_start(rt_hwtimer_t *timer, rt_uint32_t cnt, rt_hwtimer_mode_t mode)
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{
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gptimer_handle_t gptimer = (gptimer_handle_t)timer->parent.user_data;
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gptimer_alarm_config_t alarm_config = {
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.alarm_count = cnt,
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};
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if (mode == HWTIMER_MODE_ONESHOT)
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{
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}
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else
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{
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alarm_config.reload_count = 0;
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alarm_config.flags.auto_reload_on_alarm = true;
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}
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ESP_ERROR_CHECK(gptimer_set_alarm_action(gptimer, &alarm_config));
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ESP_ERROR_CHECK(gptimer_start(gptimer));
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return RT_EOK;
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}
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/**
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* stop the hwtimer, change the status from running into enable
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*/
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static void mcu_hwtimer_stop(rt_hwtimer_t *timer)
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{
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gptimer_handle_t gptimer = (gptimer_handle_t)timer->parent.user_data;
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ESP_ERROR_CHECK(gptimer_stop(gptimer));
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}
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/**
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* get count
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*/
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static rt_uint32_t mcu_hwtimer_count_get(rt_hwtimer_t *timer)
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{
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gptimer_handle_t gptimer = (gptimer_handle_t)timer->parent.user_data;
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// get count number
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uint64_t value;
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ESP_ERROR_CHECK(gptimer_get_raw_count(gptimer, &value));
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return (rt_uint32_t)value;
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}
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/**
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* control the hwtimer
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*/
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static rt_err_t mcu_hwtimer_control(rt_hwtimer_t *timer, rt_uint32_t cmd, void *args)
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{
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rt_err_t err = RT_EOK;
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switch (cmd)
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{
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case HWTIMER_CTRL_FREQ_SET:
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err = -RT_ERROR;
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break;
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case HWTIMER_CTRL_INFO_GET:
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err = -RT_ERROR;
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break;
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case HWTIMER_CTRL_MODE_SET:
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timer->mode = *(rt_uint32_t *)args;
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break;
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case HWTIMER_CTRL_STOP:
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mcu_hwtimer_stop(timer);
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break;
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}
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return err;
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}
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static struct rt_hwtimer_device _hwtimer;
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static const struct rt_hwtimer_ops _hwtimer_ops =
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{
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.init = mcu_hwtimer_init,
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.start = mcu_hwtimer_start,
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.stop = mcu_hwtimer_stop,
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.count_get = mcu_hwtimer_count_get,
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.control = mcu_hwtimer_control};
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static const struct rt_hwtimer_info _hwtimer_info =
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{
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// TODO:what is the true max and min?
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.maxfreq = 1000000UL,
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.minfreq = 1000000UL,
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.maxcnt = 0xFFFF,
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.cntmode = HWTIMER_MODE_ONESHOT};
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int rt_hw_hwtimer_init(void)
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{
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char *name = "timer0";
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gptimer_handle_t gptimer = NULL;
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gptimer_config_t timer_config = {
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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.resolution_hz = 1 * 1000 * 1000,
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};
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gptimer_event_callbacks_t cbs = {
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.on_alarm = mcu_hwtimer_intr_handler,
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};
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ESP_ERROR_CHECK(gptimer_new_timer(&timer_config, &gptimer));
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ESP_ERROR_CHECK(gptimer_register_event_callbacks(gptimer, &cbs, &_hwtimer));
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_hwtimer.info = &_hwtimer_info;
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_hwtimer.ops = &_hwtimer_ops;
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return rt_device_hwtimer_register(&_hwtimer, name, (void *)gptimer);
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}
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INIT_DEVICE_EXPORT(rt_hw_hwtimer_init);
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#endif /* RT_USING_HWTIMER */
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@ -0,0 +1,20 @@
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-11-15 BetMul first version
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*/
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#ifndef __DRV_HWTIMER_H__
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#define __DRV_HWTIMER_H__
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#include <rtconfig.h>
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#ifdef RT_USING_HWTIMER
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int rt_hw_hwtimer_init(void);
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#endif
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#endif /* __DRV_HWTIMER_H__ */
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