ArteryTek/AT32F415_Firmware_Library
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2021-12-14 13:34:31 +08:00
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utilities/at32f415_gen_random_number_demo/src/at32f415_clock.c Normal file
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/**
**************************************************************************
* @file at32f415_clock.c
* @version v2.0.0
* @date 2021-11-26
* @brief system clock config program
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
/* includes ------------------------------------------------------------------*/
#include "at32f415_clock.h"
/**
* @brief system clock config program
* @note the system clock is configured as follow:
* - system clock = hext / 2 * pll_mult
* - system clock source = pll (hext)
* - hext = 8000000
* - sclk = 144000000
* - ahbdiv = 1
* - ahbclk = 144000000
* - apb2div = 2
* - apb2clk = 72000000
* - apb1div = 2
* - apb1clk = 72000000
* - pll_mult = 36
* - flash_wtcyc = 4 cycle
* @param none
* @retval none
*/
void system_clock_config(void)
{
/* config flash psr register */
flash_psr_set(FLASH_WAIT_CYCLE_4);
/* reset crm */
crm_reset();
crm_clock_source_enable(CRM_CLOCK_SOURCE_HEXT, TRUE);
/* wait till hext is ready */
while(crm_hext_stable_wait() == ERROR)
{
}
/* config pll clock resource */
crm_pll_config(CRM_PLL_SOURCE_HEXT_DIV, CRM_PLL_MULT_36);
/* enable pll */
crm_clock_source_enable(CRM_CLOCK_SOURCE_PLL, TRUE);
/* wait till pll is ready */
while(crm_flag_get(CRM_PLL_STABLE_FLAG) != SET)
{
}
/* config ahbclk */
crm_ahb_div_set(CRM_AHB_DIV_1);
/* config apb2clk */
crm_apb2_div_set(CRM_APB2_DIV_2);
/* config apb1clk */
crm_apb1_div_set(CRM_APB1_DIV_2);
/* enable auto step mode */
crm_auto_step_mode_enable(TRUE);
/* select pll as system clock source */
crm_sysclk_switch(CRM_SCLK_PLL);
/* wait till pll is used as system clock source */
while(crm_sysclk_switch_status_get() != CRM_SCLK_PLL)
{
}
/* disable auto step mode */
crm_auto_step_mode_enable(FALSE);
/* update system_core_clock global variable */
system_core_clock_update();
}

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utilities/at32f415_gen_random_number_demo/src/at32f415_int.c Normal file
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/**
**************************************************************************
* @file at32f415_int.c
* @version v2.0.0
* @date 2021-11-26
* @brief main interrupt service routines.
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
/* includes ------------------------------------------------------------------*/
#include "at32f415_int.h"
/** @addtogroup UTILITIES_examples
* @{
*/
/** @addtogroup GEN_random_number_demo
* @{
*/
/**
* @brief this function handles nmi exception.
* @param none
* @retval none
*/
void NMI_Handler(void)
{
}
/**
* @brief this function handles hard fault exception.
* @param none
* @retval none
*/
void HardFault_Handler(void)
{
/* go to infinite loop when hard fault exception occurs */
while (1)
{
}
}
/**
* @brief this function handles memory manage exception.
* @param none
* @retval none
*/
void MemManage_Handler(void)
{
/* go to infinite loop when memory manage exception occurs */
while (1)
{
}
}
/**
* @brief this function handles bus fault exception.
* @param none
* @retval none
*/
void BusFault_Handler(void)
{
/* go to infinite loop when bus fault exception occurs */
while (1)
{
}
}
/**
* @brief this function handles usage fault exception.
* @param none
* @retval none
*/
void UsageFault_Handler(void)
{
/* go to infinite loop when usage fault exception occurs */
while (1)
{
}
}
/**
* @brief this function handles svcall exception.
* @param none
* @retval none
*/
void SVC_Handler(void)
{
}
/**
* @brief this function handles debug monitor exception.
* @param none
* @retval none
*/
void DebugMon_Handler(void)
{
}
/**
* @brief this function handles pendsv_handler exception.
* @param none
* @retval none
*/
void PendSV_Handler(void)
{
}
/**
* @brief this function handles systick handler.
* @param none
* @retval none
*/
void SysTick_Handler(void)
{
}
/**
* @}
*/
/**
* @}
*/

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utilities/at32f415_gen_random_number_demo/src/main.c Normal file
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/**
**************************************************************************
* @file main.c
* @version v2.0.0
* @date 2021-11-26
* @brief main program
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
#include "at32f415_board.h"
#include "at32f415_clock.h"
#include "stdio.h"
#include "random.h"
/** @addtogroup UTILITIES_examples
* @{
*/
/** @addtogroup GEN_random_number_demo
* @{
*/
/* suport printf function, usemicrolib is unnecessary */
#if (__ARMCC_VERSION > 6000000)
__asm (".global __use_no_semihosting\n\t");
void _sys_exit(int x)
{
x = x;
}
/* __use_no_semihosting was requested, but _ttywrch was */
void _ttywrch(int ch)
{
ch = ch;
}
FILE __stdout;
#else
#ifdef __CC_ARM
#pragma import(__use_no_semihosting)
struct __FILE
{
int handle;
};
FILE __stdout;
void _sys_exit(int x)
{
x = x;
}
#endif
#endif
#if defined ( __GNUC__ ) && !defined (__clang__)
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif
/**
* @brief retargets the c library printf function to the usart.
* @param none
* @retval none
*/
PUTCHAR_PROTOTYPE
{
while(usart_flag_get(USART1, USART_TDBE_FLAG) == RESET);
usart_data_transmit(USART1, ch);
return ch;
}
/**
* @brief initialize uart1
* @param bound: uart baudrate
* @retval none
*/
void uart_print_init(uint32_t bound)
{
gpio_init_type gpio_init_struct;
/*enable the uart1 and gpio clock*/
crm_periph_clock_enable(CRM_USART1_PERIPH_CLOCK, TRUE);
crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);
/* configure the uart1 tx pin */
gpio_default_para_init(&gpio_init_struct);
gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
gpio_init_struct.gpio_pins = GPIO_PINS_9;
gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
gpio_init(GPIOA, &gpio_init_struct);
/*configure uart param*/
usart_init(USART1, bound, USART_DATA_8BITS, USART_STOP_1_BIT);
usart_transmitter_enable(USART1, TRUE);
usart_enable(USART1, TRUE);
}
/**
* @brief main function.
* @param none
* @retval none
*/
int main(void)
{
system_clock_config();
at32_board_init();
uart_print_init(115200);
printf("gen random number test\r\n");
randnum_test();
while(1)
{
}
}
/**
* @}
*/
/**
* @}
*/

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utilities/at32f415_gen_random_number_demo/src/random.c Normal file
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/**
**************************************************************************
* @file random.c
* @version v2.0.0
* @date 2021-11-26
* @brief set of firmware functions to random function
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
#include "at32f415_board.h"
#include "random.h"
#include "stdio.h"
#include <stdlib.h>
/** @addtogroup UTILITIES_examples
* @{
*/
/** @addtogroup GEN_random_number_demo
* @{
*/
/* define at32 mcu uid address */
#define DEVICE_ID_ADDR1 0x1FFFF7E8
ertc_time_type *time;
uint16_t ertc_clk_div_a = 0;
uint16_t ertc_clk_div_b = 0;
/**
* @brief get uid value as seed
* @param none
* @retval uid_one_word
*/
int get_uid_for_seed (void)
{
uint32_t id[3] = {0};
uint32_t uid_one_word;
/* get uid */
id[0] = *(int*)DEVICE_ID_ADDR1;
id[2] = *(int*)(DEVICE_ID_ADDR1+8);
uid_one_word=id[0]&0x7fffffff+((id[2]&(~0x7fffffff))<<16);
return uid_one_word;
}
/**
* @brief enable ertc as seed
* @param none
* @retval none
*/
#if ENABLE_ERTC_ASSEED
void ertc_init_for_seed (void)
{
/* enable the pwc clock interface */
crm_periph_clock_enable(CRM_PWC_PERIPH_CLOCK, TRUE);
/* allow access to ertc */
pwc_battery_powered_domain_access(TRUE);
/* reset ertc domain */
crm_battery_powered_domain_reset(TRUE);
crm_battery_powered_domain_reset(FALSE);
/* the ertc clock may varies due to lick frequency dispersion. */
/* enable the lick osc */
crm_clock_source_enable(CRM_CLOCK_SOURCE_LICK, TRUE);
/* wait till lick is ready */
while(crm_flag_get(CRM_LICK_STABLE_FLAG) == RESET)
{
}
/* select the ertc clock source */
crm_ertc_clock_select(CRM_ERTC_CLOCK_LICK);
/* ck_spre(1hz) = ertcclk(lick) /(ertc_clk_div_a + 1)*(ertc_clk_div_b + 1)*/
ertc_clk_div_b = 0xFF;
ertc_clk_div_a = 0x7F;
/* enable the ertc clock */
crm_ertc_clock_enable(TRUE);
/* deinitializes the ertc registers */
ertc_reset();
/* wait for ertc apb registers synchronisation */
ertc_wait_update();
/* configure the ertc data register and ertc prescaler */
ertc_divider_set(ertc_clk_div_a, ertc_clk_div_b);
ertc_hour_mode_set(ERTC_HOUR_MODE_24);
/* set the alarm 05h:20min:30s */
ertc_alarm_mask_set(ERTC_ALA, ERTC_ALARM_MASK_DATE_WEEK);
ertc_alarm_week_date_select(ERTC_ALA, ERTC_SLECT_DATE);
ertc_alarm_set(ERTC_ALA, 31, 5, 20, 30, ERTC_AM);
/* enable ertc alarm a interrupt */
ertc_interrupt_enable(ERTC_ALA_INT, TRUE);
/* enable the alarm */
ertc_alarm_enable(ERTC_ALA, TRUE);
ertc_flag_clear(ERTC_ALAF_FLAG);
/* set the date: friday january 11th 2013 */
ertc_date_set(13, 1, 11, 5);
/* set the time to 05h 20mn 00s am */
ertc_time_set(5, 20, 0, ERTC_AM);
/* indicator for the ertc configuration */
ertc_bpr_data_write(ERTC_DT1, 0x32F1);
}
#endif
/**
* @brief random number test
* @param none
* @retval none
*/
void randnum_test( void)
{
#if ENABLE_ERTC_ASSEED
if(ertc_bpr_data_read(ERTC_DT1) != 0x32F1)
{
ertc_init_for_seed();
}
ertc_calendar_get(time);
/* set uid and ertc as seed for random */
srand(ERTC->time + get_uid_for_seed());
#else
/* set only uid as seed for random */
srand(get_uid_for_seed());
#endif
while(1)
{
delay_ms(500);
printf("%d\r\n",rand());
}
}
/**
* @}
*/
/**
* @}
*/