Modified fomat and add low power

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lin 2017-09-20 11:14:45 +08:00
parent 0266967898
commit e8eaaed1fe
9 changed files with 170 additions and 55 deletions

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Apollo2 MCU是基于Ambiq Micro的Apollo MCU产品系列的第二代控制器。
Ambiq使用专利亚阈值功率优化技术Subthreshold Power Optimized Technology SPOT平台来实现惊人的功耗降低其功耗通常比性能相近的其它MCU产品降低5至10倍。
Apollo2 MCU采用32位ARM Cortex-M4F微控制器集成了高达1 MB的闪存和256 KB的RAM以适应无线电和传感器开销同时仍留有足够的应用代码空间。
Apollo2 MCU采用32位ARM Cortex-M4F微控制器集成了高达1 MB的闪存和256 KB的RAM以适应无线电和传感器开销同时仍留有足够的应用代码空间。该微控制器还包括串行主机和UART端口用于与无线电和传感器通信包括加速度计陀螺仪和磁力计。
board info:Apollo2 Evaluation Boardhttp://ambiqmicro.com/apollo-ultra-low-power-mcu/apollo2-mcu-20170703/
Features
Ultra-low supply current
10 μA/MHz executing from flash at 3.3 V
10 μA/MHz executing from RAM at 3.3 V
High-performance ARM Cortex-M4 Processor
Up to 48 MHz clock frequency
Floating point unit
Memory protection unit
Wake-up interrupt controller with 32 interrupts
Ultra-low power memory:
Up to 1 MB of flash memory for code/data
Up to 256 KB of low leakage RAM for code/data
16kB 1 or 2-way Associative Cache
Ultra-low power interface for off-chip sensors:
14 bit, 15-channel, up to 1.2 MS/s ADC
Voltage Comparator
Temperature sensor with +/-2C accuracy
Flexible serial peripherals:
6x I2C/SPI master for communication with sensors,?radios, and other peripherals
1x I2C/SPI slave for host communications
2x UART for communication with peripherals and?legacy devices
PDM for mono and stereo audio microphone
Rich set of clock sources:
32.768 kHz XTAL oscillator
Low frequency RC oscillator 1.024 kHz
High frequency RC oscillator 48 MHz
RTC based on Ambiqs AM08X5/18X5 families
Wide operating range: 1.8-3.6 V, 40 to 85°C
Compact package options:
2.5 x 2.5 mm 49-pin CSP with 34 GPIO
4.5 x 4.5 mm 64-pin BGA with 50 GPIO
Board info
Apollo2 Evaluation Boardhttp://ambiqmicro.com/apollo-ultra-low-power-mcu/apollo2-mcu-20170703/

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/*
* File : application.c
* File : main.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
@ -23,7 +23,7 @@
*/
#include <rtthread.h>
#include <stdint.h>
#ifdef RT_USING_FINSH
#include <finsh.h>
#include <shell.h>

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/*
* File : board.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2009 RT-Thread Develop Team
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
@ -19,7 +29,19 @@
#include "am_mcu_apollo.h"
#include "hal/am_hal_clkgen.h"
#include "hal/am_hal_cachectrl.h"
#include "hw_uart.h"
#include "uart.h"
#include "led.h"
#ifdef __CC_ARM
extern int Image$$RW_IRAM1$$ZI$$Limit;
#define AM_SRAM_BEGIN (&Image$$RW_IRAM1$$ZI$$Limit)
#elif __ICCARM__
#pragma section="HEAP"
#define AM_SRAM_BEGIN (__segment_end("HEAP"))
#else
extern int __bss_end;
#define NRF_SRAM_BEGIN (&__bss_end)
#endif
#define TICK_RATE_HZ RT_TICK_PER_SECOND
#define SYSTICK_CLOCK_HZ ( 32768UL )
@ -53,13 +75,10 @@ void am_stimer_cmpr0_isr(void)
*/
void SysTick_Configuration(void)
{
/* Set the main clk */
am_hal_clkgen_sysclk_select(AM_HAL_CLKGEN_SYSCLK_MAX);
/* Enable compare A interrupt in STIMER */
am_hal_stimer_int_enable(AM_HAL_STIMER_INT_COMPAREA);
/* Enable the timer interrupt in the NVIC */
/* Enable the timer interrupt in the NVIC, making sure to use the appropriate priority level */
am_hal_interrupt_enable(AM_HAL_INTERRUPT_STIMER_CMPR0);
/* Configure the STIMER and run */
@ -69,15 +88,6 @@ void SysTick_Configuration(void)
AM_HAL_STIMER_CFG_COMPARE_A_ENABLE);
}
/**
* This is the CacheCtrl Enable.
*
*/
void CacheCtrl_Enable(void)
{
am_hal_cachectrl_enable(&am_hal_cachectrl_defaults);
}
/**
* This is the low power operation.
* This function enables several power-saving features of the MCU, and
@ -100,7 +110,7 @@ void am_low_power_init(void)
/* Stop the XT and LFRC */
am_hal_clkgen_osc_stop(AM_HAL_CLKGEN_OSC_XT);
// am_hal_clkgen_osc_stop(AM_HAL_CLKGEN_OSC_LFRC);
am_hal_clkgen_osc_stop(AM_HAL_CLKGEN_OSC_LFRC);
/* Disable the RTC */
am_hal_rtc_osc_disable();
@ -112,7 +122,11 @@ void am_low_power_init(void)
*/
void deep_power_save(void)
{
am_hal_interrupt_master_disable();
am_hal_sysctrl_sleep(AM_HAL_SYSCTRL_SLEEP_DEEP);
am_hal_interrupt_master_enable();
}
/**
@ -120,17 +134,34 @@ void deep_power_save(void)
*/
void rt_hw_board_init(void)
{
/* Set the clock frequency */
SysTick_Configuration();
/* Set the system clock to maximum frequency */
am_hal_clkgen_sysclk_select(AM_HAL_CLKGEN_SYSCLK_MAX);
/* Set the default cache configuration */
CacheCtrl_Enable();
am_hal_cachectrl_enable(&am_hal_cachectrl_defaults);
/* Configure the board for low power operation */
//am_low_power_init();
am_low_power_init();
/* Config SysTick */
SysTick_Configuration();
#ifdef RT_USING_IDLE_HOOK
/* Set sleep deep mode */
rt_thread_idle_sethook(deep_power_save);
#ifndef NO_FPU
/* Enable the floating point module, and configure the core for lazy stacking */
am_hal_sysctrl_fpu_enable();
am_hal_sysctrl_fpu_stacking_enable(true);
#else
am_hal_sysctrl_fpu_disable();
#endif
/* Turn off unused Flash & SRAM */
am_hal_pwrctrl_memory_enable(AM_HAL_PWRCTRL_MEMEN_FLASH512K);
am_hal_pwrctrl_memory_enable(AM_HAL_PWRCTRL_MEMEN_SRAM32K);
#endif
#ifdef RT_USING_CONSOLE
@ -141,6 +172,10 @@ void rt_hw_board_init(void)
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();
#endif
#ifdef RT_USING_HEAP
rt_system_heap_init((void*)AM_SRAM_BEGIN, (void*)AM_SRAM_END);
#endif
}
/*@}*/

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/*
* File : board.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2017-09-14 Haley first implementation
*/
#ifndef __BOARD_H_
#define __BOARD_H_
@ -10,7 +33,13 @@
/* USART driver select. */
#define RT_USING_UART0
#define RT_USING_UART1
//#define RT_USING_UART1
/* LED driver select. */
#define RT_USING_LED0
//#define RT_USING_LED1
//#define RT_USING_LED2
//#define RT_USING_LED3
void rt_hw_board_init(void);

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@ -43,6 +43,7 @@
*/
void rt_hw_led_on(rt_uint8_t LEDNum)
{
#ifdef RT_USING_PIN
if(LEDNum == 0)
rt_pin_write(AM_GPIO_LED0, PIN_LOW);
@ -54,6 +55,7 @@ void rt_hw_led_on(rt_uint8_t LEDNum)
else if(LEDNum == 3)
rt_pin_write(AM_GPIO_LED3, PIN_LOW);
#endif
}
/**
@ -67,6 +69,7 @@ void rt_hw_led_on(rt_uint8_t LEDNum)
*/
void rt_hw_led_off(rt_uint8_t LEDNum)
{
#ifdef RT_USING_PIN
if(LEDNum == 0)
rt_pin_write(AM_GPIO_LED0, PIN_HIGH);
@ -78,6 +81,7 @@ void rt_hw_led_off(rt_uint8_t LEDNum)
else if(LEDNum == 3)
rt_pin_write(AM_GPIO_LED3, PIN_HIGH);
#endif
}
/**
@ -91,6 +95,7 @@ void rt_hw_led_off(rt_uint8_t LEDNum)
*/
int rt_hw_led_init(void)
{
#ifdef RT_USING_PIN
#if defined(RT_USING_LED0)
/* config led */
rt_pin_mode(AM_GPIO_LED0, PIN_MODE_OUTPUT);
@ -122,10 +127,10 @@ int rt_hw_led_init(void)
/* turns off the led */
rt_hw_led_off(3);
#endif /* RT_USING_LED1 */
#endif
return 0;
}
#ifdef RT_USING_PIN
#ifdef RT_USING_COMPONENTS_INIT
INIT_BOARD_EXPORT(rt_hw_led_init);
#endif

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@ -16,14 +16,14 @@
/* SECTION: RT_DEBUG */
/* Thread Debug */
#define RT_DEBUG
//#define RT_DEBUG
//#define RT_DEBUG_INIT 1
#define RT_USING_OVERFLOW_CHECK
//#define RT_USING_OVERFLOW_CHECK
/* Using Hook */
//#define RT_USING_HOOK
//#define RT_USING_IDLE_HOOK
#define RT_USING_IDLE_HOOK
#define IDLE_THREAD_STACK_SIZE 384
@ -60,6 +60,9 @@
#define RT_USING_SMALL_MEM
#define RT_USING_TINY_SIZE
/* Using USER MAIN */
#define RT_USING_USER_MAIN
// <bool name="RT_USING_COMPONENTS_INIT" description="Using RT-Thread components initialization" default="true" />
#define RT_USING_COMPONENTS_INIT
@ -78,13 +81,16 @@
// <string name="RT_CONSOLE_DEVICE_NAME" description="The device name for console" default="uart1" />
#define RT_CONSOLE_DEVICE_NAME "uart0"
/* Using GPIO pin framework */
#define RT_USING_PIN
// #define RT_USING_SPI
/* SECTION: finsh, a C-Express shell */
#define RT_USING_FINSH
/* configure finsh parameters */
#define FINSH_THREAD_PRIORITY 6
#define FINSH_THREAD_STACK_SIZE 512
#define FINSH_THREAD_STACK_SIZE 1024
#define FINSH_HISTORY_LINES 1
/* Using symbol table */
#define FINSH_USING_SYMTAB