|
因为原代码是stm的不想再改,所以源文件的库都是用的stm的,看到at32f403a的频率可以到200m所以想其它的代码还是用stm一样,只是把频率用AT的库设置到192m,原代码是先用stm的库设置8m,倍频到72m,然后引用M_At32F40X_SystemClock(24),
24倍频到192m,因为直接加入引用at的库时,和stm的有些冲突,所以把at库里用到的枚举和函数复制过来,设置完成后,用stm的库函数RCC_GetClocksFreq(&RCC_ClocksStatus); //读出时钟配置
如果小于17倍,读出的设置频率和设置的一样,大于17反而会变小,如16倍,读出设置的是128M,24倍本来应该倍频到192M的读出反而是64M,但是如果已设置的128M,实际运行的速度却没有,用指示灯闪烁查看
哪位兄度熟点测试下
- /**
- **************************************************************************
- * @file at32f403a_407_clock.c
- * @version v2.0.9
- * @date 2022-04-25
- * @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 "at32f403a_407_clock.h"
- /** @addtogroup AT32F403A_periph_template
- * @{
- */
- /** @addtogroup 403A_System_clock_configuration System_clock_configuration
- * @{
- */
- /**
- * @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 = 240000000
- * - ahbdiv = 1
- * - ahbclk = 240000000
- * - apb2div = 2
- * - apb2clk = 120000000
- * - apb1div = 2
- * - apb1clk = 120000000
- * - pll_mult = 60
- * - pll_range = GT72MHZ (greater than 72 mhz)
- * @param none
- * @retval none
- */
- typedef struct
- {
- /**
- * @brief crm ctrl register, offset:0x00
- */
- union
- {
- __IO uint32_t ctrl;
- struct
- {
- __IO uint32_t hicken : 1; /* [0] */
- __IO uint32_t hickstbl : 1; /* [1] */
- __IO uint32_t hicktrim : 6; /* [7:2] */
- __IO uint32_t hickcal : 8; /* [15:8] */
- __IO uint32_t hexten : 1; /* [16] */
- __IO uint32_t hextstbl : 1; /* [17] */
- __IO uint32_t hextbyps : 1; /* [18] */
- __IO uint32_t cfden : 1; /* [19] */
- __IO uint32_t reserved1 : 4; /* [23:20] */
- __IO uint32_t pllen : 1; /* [24] */
- __IO uint32_t pllstbl : 1; /* [25] */
- __IO uint32_t reserved2 : 6; /* [31:26] */
- } ctrl_bit;
- };
- /**
- * @brief crm cfg register, offset:0x04
- */
- union
- {
- __IO uint32_t cfg;
- struct
- {
- __IO uint32_t sclksel : 2; /* [1:0] */
- __IO uint32_t sclksts : 2; /* [3:2] */
- __IO uint32_t ahbdiv : 4; /* [7:4] */
- __IO uint32_t apb1div : 3; /* [10:8] */
- __IO uint32_t apb2div : 3; /* [13:11] */
- __IO uint32_t adcdiv_l : 2; /* [15:14] */
- __IO uint32_t pllrcs : 1; /* [16] */
- __IO uint32_t pllhextdiv : 1; /* [17] */
- __IO uint32_t pllmult_l : 4; /* [21:18] */
- __IO uint32_t usbdiv_l : 2; /* [23:22] */
- __IO uint32_t clkout_sel : 3; /* [26:24] */
- __IO uint32_t usbdiv_h : 1; /* [27] */
- __IO uint32_t adcdiv_h : 1; /* [28] */
- __IO uint32_t pllmult_h : 2; /* [30:29] */
- __IO uint32_t pllrange : 1; /* [31] */
- } cfg_bit;
- };
- /**
- * @brief crm clkint register, offset:0x08
- */
- union
- {
- __IO uint32_t clkint;
- struct
- {
- __IO uint32_t lickstblf : 1; /* [0] */
- __IO uint32_t lextstblf : 1; /* [1] */
- __IO uint32_t hickstblf : 1; /* [2] */
- __IO uint32_t hextstblf : 1; /* [3] */
- __IO uint32_t pllstblf : 1; /* [4] */
- __IO uint32_t reserved1 : 2; /* [6:5] */
- __IO uint32_t cfdf : 1; /* [7] */
- __IO uint32_t lickstblien : 1; /* [8] */
- __IO uint32_t lextstblien : 1; /* [9] */
- __IO uint32_t hickstblien : 1; /* [10] */
- __IO uint32_t hextstblien : 1; /* [11] */
- __IO uint32_t pllstblien : 1; /* [12] */
- __IO uint32_t reserved2 : 3; /* [15:13] */
- __IO uint32_t lickstblfc : 1; /* [16] */
- __IO uint32_t lextstblfc : 1; /* [17] */
- __IO uint32_t hickstblfc : 1; /* [18] */
- __IO uint32_t hextstblfc : 1; /* [19] */
- __IO uint32_t pllstblfc : 1; /* [20] */
- __IO uint32_t reserved3 : 2; /* [22:21] */
- __IO uint32_t cfdfc : 1; /* [23] */
- __IO uint32_t reserved4 : 8; /* [31:24] */
- } clkint_bit;
- };
- /**
- * @brief crm apb2rst register, offset:0x0C
- */
- union
- {
- __IO uint32_t apb2rst;
- struct
- {
- __IO uint32_t iomuxrst : 1; /* [0] */
- __IO uint32_t exintrst : 1; /* [1] */
- __IO uint32_t gpioarst : 1; /* [2] */
- __IO uint32_t gpiobrst : 1; /* [3] */
- __IO uint32_t gpiocrst : 1; /* [4] */
- __IO uint32_t gpiodrst : 1; /* [5] */
- __IO uint32_t gpioerst : 1; /* [6] */
- __IO uint32_t reserved1 : 2; /* [8:7] */
- __IO uint32_t adc1rst : 1; /* [9] */
- __IO uint32_t adc2rst : 1; /* [10] */
- __IO uint32_t tmr1rst : 1; /* [11] */
- __IO uint32_t spi1rst : 1; /* [12] */
- __IO uint32_t tmr8rst : 1; /* [13] */
- __IO uint32_t usart1rst : 1; /* [14] */
- __IO uint32_t adc3rst : 1; /* [15] */
- __IO uint32_t reserved2 : 3; /* [18:16] */
- __IO uint32_t tmr9rst : 1; /* [19] */
- __IO uint32_t tmr10rst : 1; /* [20] */
- __IO uint32_t tmr11rst : 1; /* [21] */
- __IO uint32_t accrst : 1; /* [22] */
- __IO uint32_t i2c3rst : 1; /* [23] */
- __IO uint32_t usart6rst : 1; /* [24] */
- __IO uint32_t uart7rst : 1; /* [25] */
- __IO uint32_t uart8rst : 1; /* [26] */
- __IO uint32_t reserved3 : 5; /* [31:27] */
- } apb2rst_bit;
- };
- /**
- * @brief crm apb1rst register, offset:0x10
- */
- union
- {
- __IO uint32_t apb1rst;
- struct
- {
- __IO uint32_t tmr2rst : 1; /* [0] */
- __IO uint32_t tmr3rst : 1; /* [1] */
- __IO uint32_t tmr4rst : 1; /* [2] */
- __IO uint32_t tmr5rst : 1; /* [3] */
- __IO uint32_t tmr6rst : 1; /* [4] */
- __IO uint32_t tmr7rst : 1; /* [5] */
- __IO uint32_t tmr12rst : 1; /* [6] */
- __IO uint32_t tmr13rst : 1; /* [7] */
- __IO uint32_t tmr14rst : 1; /* [8] */
- __IO uint32_t reserved1 : 2; /* [10:9] */
- __IO uint32_t wwdtrst : 1; /* [11] */
- __IO uint32_t reserved2 : 2; /* [13:12] */
- __IO uint32_t spi2rst : 1; /* [14] */
- __IO uint32_t spi3rst : 1; /* [15] */
- __IO uint32_t spi4rst : 1; /* [16] */
- __IO uint32_t usart2rst : 1; /* [17] */
- __IO uint32_t usart3rst : 1; /* [18] */
- __IO uint32_t uart4rst : 1; /* [19] */
- __IO uint32_t uart5rst : 1; /* [20] */
- __IO uint32_t i2c1rst : 1; /* [21] */
- __IO uint32_t i2c2rst : 1; /* [22] */
- __IO uint32_t usbrst : 1; /* [23] */
- __IO uint32_t reserved3 : 1; /* [24] */
- __IO uint32_t can1rst : 1; /* [25] */
- __IO uint32_t can2rst : 1; /* [26] */
- __IO uint32_t bprrst : 1; /* [27] */
- __IO uint32_t pwcrst : 1; /* [28] */
- __IO uint32_t dacrst : 1; /* [29] */
- __IO uint32_t reserved4 : 2; /* [31:30] */
- } apb1rst_bit;
- };
- /**
- * @brief crm ahben register, offset:0x14
- */
- union
- {
- __IO uint32_t ahben;
- #if defined (AT32F403Axx)
- struct
- {
- __IO uint32_t dma1en : 1; /* [0] */
- __IO uint32_t dma2en : 1; /* [1] */
- __IO uint32_t sramen : 1; /* [2] */
- __IO uint32_t reserved1 : 1; /* [3] */
- __IO uint32_t flashen : 1; /* [4] */
- __IO uint32_t reserved2 : 1; /* [5] */
- __IO uint32_t crcen : 1; /* [6] */
- __IO uint32_t reserved3 : 1; /* [7] */
- __IO uint32_t xmcen : 1; /* [8] */
- __IO uint32_t reserved4 : 1; /* [9] */
- __IO uint32_t sdio1en : 1; /* [10] */
- __IO uint32_t sdio2en : 1; /* [11] */
- __IO uint32_t reserved5 : 20;/* [31:12] */
- } ahben_bit;
- #endif
- #if defined (AT32F407xx)
- struct
- {
- __IO uint32_t dma1en : 1; /* [0] */
- __IO uint32_t dma2en : 1; /* [1] */
- __IO uint32_t sramen : 1; /* [2] */
- __IO uint32_t reserved1 : 1; /* [3] */
- __IO uint32_t flashen : 1; /* [4] */
- __IO uint32_t reserved2 : 1; /* [5] */
- __IO uint32_t crcen : 1; /* [6] */
- __IO uint32_t reserved3 : 1; /* [7] */
- __IO uint32_t xmcen : 1; /* [8] */
- __IO uint32_t reserved4 : 1; /* [9] */
- __IO uint32_t sdio1en : 1; /* [10] */
- __IO uint32_t sdio2en : 1; /* [11] */
- __IO uint32_t reserved5 : 2; /* [13:12] */
- __IO uint32_t emacen : 1; /* [14] */
- __IO uint32_t emactxen : 1; /* [15] */
- __IO uint32_t emacrxen : 1; /* [16] */
- __IO uint32_t reserved6 : 11;/* [27:17] */
- __IO uint32_t emacptpen : 1; /* [28] */
- __IO uint32_t reserved7 : 3; /* [31:29] */
- } ahben_bit;
- #endif
- };
- /**
- * @brief crm apb2en register, offset:0x18
- */
- union
- {
- __IO uint32_t apb2en;
- struct
- {
- __IO uint32_t iomuxen : 1; /* [0] */
- __IO uint32_t reserved1 : 1; /* [1] */
- __IO uint32_t gpioaen : 1; /* [2] */
- __IO uint32_t gpioben : 1; /* [3] */
- __IO uint32_t gpiocen : 1; /* [4] */
- __IO uint32_t gpioden : 1; /* [5] */
- __IO uint32_t gpioeen : 1; /* [6] */
- __IO uint32_t reserved2 : 2; /* [8:7] */
- __IO uint32_t adc1en : 1; /* [9] */
- __IO uint32_t adc2en : 1; /* [10] */
- __IO uint32_t tmr1en : 1; /* [11] */
- __IO uint32_t spi1en : 1; /* [12] */
- __IO uint32_t tmr8en : 1; /* [13] */
- __IO uint32_t usart1en : 1; /* [14] */
- __IO uint32_t adc3en : 1; /* [15] */
- __IO uint32_t reserved3 : 3; /* [18:16] */
- __IO uint32_t tmr9en : 1; /* [19] */
- __IO uint32_t tmr10en : 1; /* [20] */
- __IO uint32_t tmr11en : 1; /* [21] */
- __IO uint32_t accen : 1; /* [22] */
- __IO uint32_t i2c3en : 1; /* [23] */
- __IO uint32_t usart6en : 1; /* [24] */
- __IO uint32_t uart7en : 1; /* [25] */
- __IO uint32_t uart8en : 1; /* [26] */
- __IO uint32_t reserved4 : 5; /* [31:27] */
- } apb2en_bit;
- };
- /**
- * @brief crm apb1en register, offset:0x1C
- */
- union
- {
- __IO uint32_t apb1en;
- struct
- {
- __IO uint32_t tmr2en : 1; /* [0] */
- __IO uint32_t tmr3en : 1; /* [1] */
- __IO uint32_t tmr4en : 1; /* [2] */
- __IO uint32_t tmr5en : 1; /* [3] */
- __IO uint32_t tmr6en : 1; /* [4] */
- __IO uint32_t tmr7en : 1; /* [5] */
- __IO uint32_t tmr12en : 1; /* [6] */
- __IO uint32_t tmr13en : 1; /* [7] */
- __IO uint32_t tmr14en : 1; /* [8] */
- __IO uint32_t reserved1 : 2; /* [10:9] */
- __IO uint32_t wwdten : 1; /* [11] */
- __IO uint32_t reserved2 : 2; /* [13:12] */
- __IO uint32_t spi2en : 1; /* [14] */
- __IO uint32_t spi3en : 1; /* [15] */
- __IO uint32_t spi4en : 1; /* [16] */
- __IO uint32_t usart2en : 1; /* [17] */
- __IO uint32_t usart3en : 1; /* [18] */
- __IO uint32_t uart4en : 1; /* [19] */
- __IO uint32_t uart5en : 1; /* [20] */
- __IO uint32_t i2c1en : 1; /* [21] */
- __IO uint32_t i2c2en : 1; /* [22] */
- __IO uint32_t usben : 1; /* [23] */
- __IO uint32_t reserved3 : 1; /* [24] */
- __IO uint32_t can1en : 1; /* [25] */
- __IO uint32_t can2en : 1; /* [26] */
- __IO uint32_t bpren : 1; /* [27] */
- __IO uint32_t pwcen : 1; /* [28] */
- __IO uint32_t dacen : 1; /* [29] */
- __IO uint32_t reserved4 : 2; /* [31:30] */
- } apb1en_bit;
- };
- /**
- * @brief crm bpdc register, offset:0x20
- */
- union
- {
- __IO uint32_t bpdc;
- struct
- {
- __IO uint32_t lexten : 1; /* [0] */
- __IO uint32_t lextstbl : 1; /* [1] */
- __IO uint32_t lextbyps : 1; /* [2] */
- __IO uint32_t reserved1 : 5; /* [7:3] */
- __IO uint32_t rtcsel : 2; /* [9:8] */
- __IO uint32_t reserved2 : 5; /* [14:10] */
- __IO uint32_t rtcen : 1; /* [15] */
- __IO uint32_t bpdrst : 1; /* [16] */
- __IO uint32_t reserved3 : 15;/* [31:17] */
- } bpdc_bit;
- };
- /**
- * @brief crm ctrlsts register, offset:0x24
- */
- union
- {
- __IO uint32_t ctrlsts;
- struct
- {
- __IO uint32_t licken : 1; /* [0] */
- __IO uint32_t lickstbl : 1; /* [1] */
- __IO uint32_t reserved1 : 22;/* [23:2] */
- __IO uint32_t rstfc : 1; /* [24] */
- __IO uint32_t reserved2 : 1; /* [25] */
- __IO uint32_t nrstf : 1; /* [26] */
- __IO uint32_t porrstf : 1; /* [27] */
- __IO uint32_t swrstf : 1; /* [28] */
- __IO uint32_t wdtrstf : 1; /* [29] */
- __IO uint32_t wwdtrstf : 1; /* [30] */
- __IO uint32_t lprstf : 1; /* [31] */
- } ctrlsts_bit;
- };
- /**
- * @brief crm ahbrst register, offset:0x28
- */
- union
- {
- __IO uint32_t ahbrst;
- #if defined (AT32F407xx)
- struct
- {
- __IO uint32_t reserved1 : 14;/* [13:0] */
- __IO uint32_t emacrst : 1; /* [14] */
- __IO uint32_t reserved2 : 17;/* [31:15] */
- } ahbrst_bit;
- #endif
- };
- /**
- * @brief crm reserved1 register, offset:0x2C
- */
- __IO uint32_t reserved1;
- /**
- * @brief crm misc1 register, offset:0x30
- */
- union
- {
- __IO uint32_t misc1;
- struct
- {
- __IO uint32_t hickcal_key : 8; /* [7:0] */
- __IO uint32_t reserved1 : 8; /* [15:8] */
- __IO uint32_t clkout_sel : 1; /* [16] */
- __IO uint32_t reserved2 : 7; /* [23:17] */
- __IO uint32_t usbbufs : 1; /* [24] */
- __IO uint32_t hickdiv : 1; /* [25] */
- __IO uint32_t reserved3 : 2; /* [27:26] */
- __IO uint32_t clkoutdiv : 4; /* [31:28] */
- } misc1_bit;
- };
- /**
- * @brief crm reserved2 register, offset:0x4C~0x34
- */
- __IO uint32_t reserved2[7];
- /**
- * @brief crm misc2 register, offset:0x50
- */
- union
- {
- __IO uint32_t misc2;
- struct
- {
- __IO uint32_t reserved1 : 16;/* [15:0] */
- __IO uint32_t clk_to_tmr : 1; /* [16] */
- __IO uint32_t reserved2 : 15;/* [31:17] */
- } misc2_bit;
- };
- /**
- * @brief crm misc3 register, offset:0x54
- */
- union
- {
- __IO uint32_t misc3;
- struct
- {
- __IO uint32_t reserved1 : 4; /* [3:0] */
- __IO uint32_t auto_step_en : 2; /* [5:4] */
- __IO uint32_t reserved2 : 2; /* [7:6] */
- __IO uint32_t hick_to_usb : 1; /* [8] */
- __IO uint32_t hick_to_sclk : 1; /* [9] */
- __IO uint32_t reserved3 : 2; /* [11:10] */
- __IO uint32_t hextdiv : 2; /* [13:12] */
- __IO uint32_t reserved4 : 1; /* [14] */
- __IO uint32_t emac_pps_sel : 1; /* [15] */
- __IO uint32_t reserved5 : 16;/* [31:16] */
- } misc3_bit;
- };
- /**
- * @brief crm reserved3 register, offset:0x58
- */
- __IO uint32_t reserved3;
- /**
- * @brief crm intmap register, offset:0x5C
- */
- union
- {
- __IO uint32_t intmap;
- struct
- {
- __IO uint32_t usbintmap : 1; /* [0] */
- __IO uint32_t reserved1 : 31;/* [31:1] */
- } intmap_bit;
- };
- } crm_type;
- #define CRM ((crm_type *) CRM_BASE)
- typedef enum
- {
- CRM_SCLK_HICK = 0x00, /*!< select high speed internal clock as sclk */
- CRM_SCLK_HEXT = 0x01, /*!< select high speed external crystal as sclk */
- CRM_SCLK_PLL = 0x02 /*!< select phase locking loop clock as sclk */
- } crm_sclk_type;
- void crm_reset(void)
- {
- /* reset the crm clock configuration to the default reset state(for debug purpose) */
- /* set hicken bit */
- CRM->ctrl_bit.hicken = true;
- /* wait hick stable */
- while(CRM->ctrl_bit.hickstbl != SET);
- /* hick used as system clock */
- CRM->cfg_bit.sclksel = CRM_SCLK_HICK;
- /* wait sclk switch status */
- while(CRM->cfg_bit.sclksts != CRM_SCLK_HICK);
- /* reset cfg register, include sclk switch, ahbdiv, apb1div, apb2div, adcdiv,
- clkout pllrcs, pllhextdiv, pllmult, usbdiv and pllrange bits */
- CRM->cfg = 0;
- /* reset hexten, hextbyps, cfden and pllen bits */
- CRM->ctrl &= ~(0x010D0000U);
- /* reset clkout[3], usbbufs, hickdiv, clkoutdiv */
- CRM->misc1 = 0;
- /* disable all interrupts enable and clear pending bits */
- CRM->clkint = 0x009F0000;
- }
- /////////////////////////////////////////////////////////////////////////////////////
- typedef enum
- {
- CRM_CLOCK_SOURCE_HICK = 0x00, /*!< high speed internal clock */
- CRM_CLOCK_SOURCE_HEXT = 0x01, /*!< high speed external crystal */
- CRM_CLOCK_SOURCE_PLL = 0x02, /*!< phase locking loop */
- CRM_CLOCK_SOURCE_LEXT = 0x03, /*!< low speed external crystal */
- CRM_CLOCK_SOURCE_LICK = 0x04 /*!< low speed internal clock */
- } crm_clock_source_type;
- typedef enum {FALSE = 0, TRUE = !FALSE} confirm_state;
- void crm_clock_source_enable(crm_clock_source_type source, confirm_state new_state)
- {
- switch(source)
- {
- case CRM_CLOCK_SOURCE_HICK:
- CRM->ctrl_bit.hicken = new_state;
- break;
- case CRM_CLOCK_SOURCE_HEXT:
- CRM->ctrl_bit.hexten = new_state;
- break;
- case CRM_CLOCK_SOURCE_PLL:
- CRM->ctrl_bit.pllen = new_state;
- break;
- case CRM_CLOCK_SOURCE_LEXT:
- CRM->bpdc_bit.lexten = new_state;
- break;
- case CRM_CLOCK_SOURCE_LICK:
- CRM->ctrlsts_bit.licken = new_state;
- break;
- default:
- break;
- }
- }
- /////////////////////////////////////////////////////////
- #define REG8(addr) *(volatile uint8_t *)(addr)
- #define REG16(addr) *(volatile uint16_t *)(addr)
- #define REG32(addr) *(volatile uint32_t *)(addr)
- #define CRM_PLL_STABLE_FLAG MAKE_VALUE(0x00, 25) /*!< phase locking loop stable flag */
- #define HEXT_STARTUP_TIMEOUT ((uint16_t)0x3000) /*!< time out for hext start up */
- #define MAKE_VALUE(reg_offset, bit_num) (uint32_t)(((reg_offset) << 16) | (bit_num & 0x1F))
- #define CRM_HEXT_STABLE_FLAG MAKE_VALUE(0x00, 17) /*!< high speed external crystal stable flag */
- #define PERIPH_REG(periph_base, value) REG32((periph_base + (value >> 16)))
- #define PERIPH_REG_BIT(value) (0x1U << (value & 0x1F))
- #define CRM_REG_BIT(value) PERIPH_REG_BIT(value)
- #define CRM_REG(value) PERIPH_REG(CRM_BASE, value)
- bool crm_flag_get(uint32_t flag)
- {
- bool status = RESET;
- if((CRM_REG(flag) & CRM_REG_BIT(flag)) != CRM_REG_BIT(flag))
- {
- status = RESET;
- }
- else
- {
- status = SET;
- }
- return status;
- }
- bool crm_hext_stable_wait(void)
- {
- uint32_t stable_cnt = 0;
- bool status = ERROR;
- while((crm_flag_get(CRM_HEXT_STABLE_FLAG) != SET) && (stable_cnt < HEXT_STARTUP_TIMEOUT))
- {
- stable_cnt ++;
- }
- if(crm_flag_get(CRM_HEXT_STABLE_FLAG) != SET)
- {
- status = ERROR;
- }
- else
- {
- status = SUCCESS;
- }
- return status;
- }
- /////////////////////////////////////////////////////
- typedef enum
- {
- CRM_PLL_SOURCE_HICK = 0x00, /*!< high speed internal clock as pll reference clock source */
- CRM_PLL_SOURCE_HEXT = 0x01, /*!< high speed external crystal as pll reference clock source */
- CRM_PLL_SOURCE_HEXT_DIV = 0x02 /*!< high speed external crystal div as pll reference clock source */
- } crm_pll_clock_source_type;
- typedef enum
- {
- CRM_PLL_MULT_2 = 0, /*!< pll multiplication factor 2 */
- CRM_PLL_MULT_3 = 1, /*!< pll multiplication factor 3 */
- CRM_PLL_MULT_4 = 2, /*!< pll multiplication factor 4 */
- CRM_PLL_MULT_5 = 3, /*!< pll multiplication factor 5 */
- CRM_PLL_MULT_6 = 4, /*!< pll multiplication factor 6 */
- CRM_PLL_MULT_7 = 5, /*!< pll multiplication factor 7 */
- CRM_PLL_MULT_8 = 6, /*!< pll multiplication factor 8 */
- CRM_PLL_MULT_9 = 7, /*!< pll multiplication factor 9 */
- CRM_PLL_MULT_10 = 8, /*!< pll multiplication factor 10 */
- CRM_PLL_MULT_11 = 9, /*!< pll multiplication factor 11 */
- CRM_PLL_MULT_12 = 10, /*!< pll multiplication factor 12 */
- CRM_PLL_MULT_13 = 11, /*!< pll multiplication factor 13 */
- CRM_PLL_MULT_14 = 12, /*!< pll multiplication factor 14 */
- CRM_PLL_MULT_15 = 13, /*!< pll multiplication factor 15 */
- CRM_PLL_MULT_16 = 14, /*!< pll multiplication factor 16 */
- CRM_PLL_MULT_17 = 15, /*!< pll multiplication factor 17 */
- CRM_PLL_MULT_18 = 16, /*!< pll multiplication factor 18 */
- CRM_PLL_MULT_19 = 17, /*!< pll multiplication factor 19 */
- CRM_PLL_MULT_20 = 18, /*!< pll multiplication factor 20 */
- CRM_PLL_MULT_21 = 19, /*!< pll multiplication factor 21 */
- CRM_PLL_MULT_22 = 20, /*!< pll multiplication factor 22 */
- CRM_PLL_MULT_23 = 21, /*!< pll multiplication factor 23 */
- CRM_PLL_MULT_24 = 22, /*!< pll multiplication factor 24 */
- CRM_PLL_MULT_25 = 23, /*!< pll multiplication factor 25 */
- CRM_PLL_MULT_26 = 24, /*!< pll multiplication factor 26 */
- CRM_PLL_MULT_27 = 25, /*!< pll multiplication factor 27 */
- CRM_PLL_MULT_28 = 26, /*!< pll multiplication factor 28 */
- CRM_PLL_MULT_29 = 27, /*!< pll multiplication factor 29 */
- CRM_PLL_MULT_30 = 28, /*!< pll multiplication factor 30 */
- CRM_PLL_MULT_31 = 29, /*!< pll multiplication factor 31 */
- CRM_PLL_MULT_32 = 30, /*!< pll multiplication factor 32 */
- CRM_PLL_MULT_33 = 31, /*!< pll multiplication factor 33 */
- CRM_PLL_MULT_34 = 32, /*!< pll multiplication factor 34 */
- CRM_PLL_MULT_35 = 33, /*!< pll multiplication factor 35 */
- CRM_PLL_MULT_36 = 34, /*!< pll multiplication factor 36 */
- CRM_PLL_MULT_37 = 35, /*!< pll multiplication factor 37 */
- CRM_PLL_MULT_38 = 36, /*!< pll multiplication factor 38 */
- CRM_PLL_MULT_39 = 37, /*!< pll multiplication factor 39 */
- CRM_PLL_MULT_40 = 38, /*!< pll multiplication factor 40 */
- CRM_PLL_MULT_41 = 39, /*!< pll multiplication factor 41 */
- CRM_PLL_MULT_42 = 40, /*!< pll multiplication factor 42 */
- CRM_PLL_MULT_43 = 41, /*!< pll multiplication factor 43 */
- CRM_PLL_MULT_44 = 42, /*!< pll multiplication factor 44 */
- CRM_PLL_MULT_45 = 43, /*!< pll multiplication factor 45 */
- CRM_PLL_MULT_46 = 44, /*!< pll multiplication factor 46 */
- CRM_PLL_MULT_47 = 45, /*!< pll multiplication factor 47 */
- CRM_PLL_MULT_48 = 46, /*!< pll multiplication factor 48 */
- CRM_PLL_MULT_49 = 47, /*!< pll multiplication factor 49 */
- CRM_PLL_MULT_50 = 48, /*!< pll multiplication factor 50 */
- CRM_PLL_MULT_51 = 49, /*!< pll multiplication factor 51 */
- CRM_PLL_MULT_52 = 50, /*!< pll multiplication factor 52 */
- CRM_PLL_MULT_53 = 51, /*!< pll multiplication factor 53 */
- CRM_PLL_MULT_54 = 52, /*!< pll multiplication factor 54 */
- CRM_PLL_MULT_55 = 53, /*!< pll multiplication factor 55 */
- CRM_PLL_MULT_56 = 54, /*!< pll multiplication factor 56 */
- CRM_PLL_MULT_57 = 55, /*!< pll multiplication factor 57 */
- CRM_PLL_MULT_58 = 56, /*!< pll multiplication factor 58 */
- CRM_PLL_MULT_59 = 57, /*!< pll multiplication factor 59 */
- CRM_PLL_MULT_60 = 58, /*!< pll multiplication factor 60 */
- CRM_PLL_MULT_61 = 59, /*!< pll multiplication factor 61 */
- CRM_PLL_MULT_62 = 60, /*!< pll multiplication factor 62 */
- CRM_PLL_MULT_63 = 61, /*!< pll multiplication factor 63 */
- CRM_PLL_MULT_64 = 62 /*!< pll multiplication factor 64 */
- } crm_pll_mult_type;
- typedef enum
- {
- CRM_PLL_OUTPUT_RANGE_LE72MHZ = 0x00, /*!< pll clock output range less than or equal to 72mhz */
- CRM_PLL_OUTPUT_RANGE_GT72MHZ = 0x01 /*!< pll clock output range greater than 72mhz */
- } crm_pll_output_range_type;
- void crm_pll_config(crm_pll_clock_source_type clock_source, crm_pll_mult_type mult_value, crm_pll_output_range_type pll_range)
- {
- /* config pll clock source */
- if(clock_source == CRM_PLL_SOURCE_HICK)
- {
- CRM->cfg_bit.pllrcs = FALSE;
- }
- else
- {
- CRM->cfg_bit.pllrcs = TRUE;
- if(CRM_PLL_SOURCE_HEXT == clock_source)
- {
- CRM->cfg_bit.pllhextdiv = FALSE;
- }
- else
- {
- CRM->cfg_bit.pllhextdiv = TRUE;
- }
- }
- /* config pll multiplication factor */
- CRM->cfg_bit.pllmult_l = (mult_value & 0x0F);
- CRM->cfg_bit.pllmult_h = ((mult_value & 0x30) >> 4);
- /* config pll output range */
- CRM->cfg_bit.pllrange = pll_range;
- }
- //////////////////////////////////////////////////////
- typedef enum
- {
- CRM_HEXT_DIV_2 = 0x00, /*!< high speed external crystal div2 */
- CRM_HEXT_DIV_3 = 0x01, /*!< high speed external crystal div3 */
- CRM_HEXT_DIV_4 = 0x02, /*!< high speed external crystal div4 */
- CRM_HEXT_DIV_5 = 0x03 /*!< high speed external crystal div5 */
- } crm_hext_div_type;
- void crm_hext_clock_div_set(crm_hext_div_type value)
- {
- CRM->misc3_bit.hextdiv = value;
- }
- ////////////////////////////////////////
- //
- //bool crm_flag_get(uint32_t flag)
- //{
- // bool status = RESET;
- // if((CRM_REG(flag) & CRM_REG_BIT(flag)) != CRM_REG_BIT(flag))
- // {
- // status = RESET;
- // }
- // else
- // {
- // status = SET;
- // }
- // return status;
- //}
- ///////////////////////////////////////////
- typedef enum
- {
- CRM_AHB_DIV_1 = 0x00, /*!< sclk div1 to ahbclk */
- CRM_AHB_DIV_2 = 0x08, /*!< sclk div2 to ahbclk */
- CRM_AHB_DIV_4 = 0x09, /*!< sclk div4 to ahbclk */
- CRM_AHB_DIV_8 = 0x0A, /*!< sclk div8 to ahbclk */
- CRM_AHB_DIV_16 = 0x0B, /*!< sclk div16 to ahbclk */
- CRM_AHB_DIV_64 = 0x0C, /*!< sclk div64 to ahbclk */
- CRM_AHB_DIV_128 = 0x0D, /*!< sclk div128 to ahbclk */
- CRM_AHB_DIV_256 = 0x0E, /*!< sclk div256 to ahbclk */
- CRM_AHB_DIV_512 = 0x0F /*!< sclk div512 to ahbclk */
- } crm_ahb_div_type;
- void crm_ahb_div_set(crm_ahb_div_type value)
- {
- CRM->cfg_bit.ahbdiv = value;
- }
- //////////////////////////
- typedef enum
- {
- CRM_APB2_DIV_1 = 0x00, /*!< ahbclk div1 to apb2clk */
- CRM_APB2_DIV_2 = 0x04, /*!< ahbclk div2 to apb2clk */
- CRM_APB2_DIV_4 = 0x05, /*!< ahbclk div4 to apb2clk */
- CRM_APB2_DIV_8 = 0x06, /*!< ahbclk div8 to apb2clk */
- CRM_APB2_DIV_16 = 0x07 /*!< ahbclk div16 to apb2clk */
- } crm_apb2_div_type;
- void crm_apb2_div_set(crm_apb2_div_type value)
- {
- CRM->cfg_bit.apb2div = value;
- }
- ///////////////////////////////////////
- typedef enum
- {
- CRM_APB1_DIV_1 = 0x00, /*!< ahbclk div1 to apb1clk */
- CRM_APB1_DIV_2 = 0x04, /*!< ahbclk div2 to apb1clk */
- CRM_APB1_DIV_4 = 0x05, /*!< ahbclk div4 to apb1clk */
- CRM_APB1_DIV_8 = 0x06, /*!< ahbclk div8 to apb1clk */
- CRM_APB1_DIV_16 = 0x07 /*!< ahbclk div16 to apb1clk */
- } crm_apb1_div_type;
- void crm_apb1_div_set(crm_apb1_div_type value)
- {
- CRM->cfg_bit.apb1div = value;
- }
- ////////////////////////////////////////
- typedef enum
- {
- CRM_AUTO_STEP_MODE_DISABLE = 0x00, /*!< disable auto step mode */
- CRM_AUTO_STEP_MODE_ENABLE = 0x03 /*!< enable auto step mode */
- } crm_auto_step_mode_type;
- void crm_auto_step_mode_enable(bool new_state)
- {
- if(new_state == TRUE)
- CRM->misc3_bit.auto_step_en = CRM_AUTO_STEP_MODE_ENABLE;
- else
- CRM->misc3_bit.auto_step_en = CRM_AUTO_STEP_MODE_DISABLE;
- }
- ////////////////////////////////////////////////
- void crm_sysclk_switch(crm_sclk_type value)
- {
- CRM->cfg_bit.sclksel = value;
- }
- ///////////////////////////////////////////
- crm_sclk_type crm_sysclk_switch_status_get(void)
- {
- return (crm_sclk_type)CRM->cfg_bit.sclksts;
- }
- /////////////////////////////////////////
- #define HICK_VALUE ((uint32_t)8000000) /*!< value of the high speed internal clock in hz */
- #define HEXT_VALUE ((uint32_t)N_ConfigSys_CrystalOsc) /*!< value of the high speed exernal crystal in hz */
- unsigned int system_core_clock = HICK_VALUE; /*!< system clock frequency (core clock) */
- void system_core_clock_update(void)
- {
- uint32_t hext_prediv = 0, pll_mult = 0, pll_mult_h = 0, pll_clock_source = 0, temp = 0, div_value = 0;
- crm_sclk_type sclk_source;
- static const uint8_t sys_ahb_div_table[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
- /* get sclk source */
- sclk_source = crm_sysclk_switch_status_get();
- switch(sclk_source)
- {
- case CRM_SCLK_HICK:
- if(((CRM->misc3_bit.hick_to_sclk) != RESET) && ((CRM->misc1_bit.hickdiv) != RESET))
- system_core_clock = HICK_VALUE * 6;
- else
- system_core_clock = HICK_VALUE;
- break;
- case CRM_SCLK_HEXT:
- system_core_clock = HEXT_VALUE;
- break;
- case CRM_SCLK_PLL:
- pll_clock_source = CRM->cfg_bit.pllrcs;
- {
- /* get multiplication factor */
- pll_mult = CRM->cfg_bit.pllmult_l;
- pll_mult_h = CRM->cfg_bit.pllmult_h;
- /* process high bits */
- if((pll_mult_h != 0U) || (pll_mult == 15U)){
- pll_mult += ((16U * pll_mult_h) + 1U);
- }
- else
- {
- pll_mult += 2U;
- }
- if (pll_clock_source == 0x00)
- {
- /* hick divided by 2 selected as pll clock entry */
- system_core_clock = (HICK_VALUE >> 1) * pll_mult;
- }
- else
- {
- /* hext selected as pll clock entry */
- if (CRM->cfg_bit.pllhextdiv != RESET)
- {
- hext_prediv = CRM->misc3_bit.hextdiv;
- /* hext clock divided by 2 */
- system_core_clock = (HEXT_VALUE / (hext_prediv + 2)) * pll_mult;
- }
- else
- {
- system_core_clock = HEXT_VALUE * pll_mult;
- }
- }
- }
- break;
- default:
- system_core_clock = HICK_VALUE;
- break;
- }
- /* compute sclk, ahbclk frequency */
- /* get ahb division */
- temp = CRM->cfg_bit.ahbdiv;
- div_value = sys_ahb_div_table[temp];
- /* ahbclk frequency */
- system_core_clock = system_core_clock >> div_value;
- }
- //////////////////////////////////////
- //设置时钟,有错误最大只能到17倍频
- void M_At32F40X_SystemClock(uint32_t RCC_PLLMul_x )
- {
- /* reset crm */
- crm_pll_mult_type T_bp;
- //处理倍频
- switch(RCC_PLLMul_x)
- {
- case 2:
- T_bp = CRM_PLL_MULT_2;
- break;
- case 3:
- T_bp = CRM_PLL_MULT_3;
- break;
- case 4:
- T_bp = CRM_PLL_MULT_4;
- break;
- case 5:
- T_bp = CRM_PLL_MULT_5;
- break;
- case 6:
- T_bp = CRM_PLL_MULT_6;
- break;
- case 7:
- T_bp = CRM_PLL_MULT_7;
- break;
- case 8:
- T_bp = CRM_PLL_MULT_8;
- break;
- case 9:
- T_bp = CRM_PLL_MULT_9;
- break;
- case 10:
- T_bp = CRM_PLL_MULT_10;
- break;
- case 11:
- T_bp = CRM_PLL_MULT_11;
- break;
- case 12:
- T_bp = CRM_PLL_MULT_12;
- break;
- case 13:
- T_bp = CRM_PLL_MULT_13;
- break;
- case 14:
- T_bp = CRM_PLL_MULT_14;
- break;
- case 15:
- T_bp = CRM_PLL_MULT_15;
- break;
- case 16:
- T_bp = CRM_PLL_MULT_16;
- break;
- case 17:
- T_bp = CRM_PLL_MULT_17;
- break;
- case 18:
- T_bp = CRM_PLL_MULT_18;
- break;
- case 19:
- T_bp = CRM_PLL_MULT_19;
- break;
- case 20:
- T_bp = CRM_PLL_MULT_20;
- break;
- case 21:
- T_bp = CRM_PLL_MULT_21;
- break;
- case 22:
- T_bp = CRM_PLL_MULT_22;
- break;
- case 23:
- T_bp = CRM_PLL_MULT_23;
- break;
- case 24:
- T_bp = CRM_PLL_MULT_24;
- break;
- case 25:
- T_bp = CRM_PLL_MULT_25;
- break;
- case 26:
- T_bp = CRM_PLL_MULT_26;
- break;
- case 27:
- T_bp = CRM_PLL_MULT_27;
- break;
- case 28:
- T_bp = CRM_PLL_MULT_28;
- break;
- case 29:
- T_bp = CRM_PLL_MULT_29;
- break;
- case 30:
- T_bp = CRM_PLL_MULT_30;
- break;
- case 31:
- T_bp = CRM_PLL_MULT_31;
- break;
- case 32:
- T_bp = CRM_PLL_MULT_32;
- break;
- case 33:
- T_bp = CRM_PLL_MULT_33;
- break;
- case 34:
- T_bp = CRM_PLL_MULT_34;
- break;
- case 35:
- T_bp = CRM_PLL_MULT_35;
- break;
- case 36:
- T_bp = CRM_PLL_MULT_36;
- break;
- case 37:
- T_bp = CRM_PLL_MULT_37;
- break;
- case 38:
- T_bp = CRM_PLL_MULT_38;
- break;
- case 39:
- T_bp = CRM_PLL_MULT_39;
- break;
- case 40:
- T_bp = CRM_PLL_MULT_40;
- break;
- case 41:
- T_bp = CRM_PLL_MULT_41;
- break;
- case 42:
- T_bp = CRM_PLL_MULT_42;
- break;
- case 43:
- T_bp = CRM_PLL_MULT_43;
- break;
- case 44:
- T_bp = CRM_PLL_MULT_44;
- break;
- case 45:
- T_bp = CRM_PLL_MULT_45;
- break;
- case 46:
- T_bp = CRM_PLL_MULT_46;
- break;
- case 47:
- T_bp = CRM_PLL_MULT_47;
- break;
- case 48:
- T_bp = CRM_PLL_MULT_48;
- break;
- case 49:
- T_bp = CRM_PLL_MULT_49;
- break;
- case 50:
- T_bp = CRM_PLL_MULT_50;
- break;
- case 51:
- T_bp = CRM_PLL_MULT_51;
- break;
- case 52:
- T_bp = CRM_PLL_MULT_52;
- break;
- case 53:
- T_bp = CRM_PLL_MULT_53;
- break;
- case 54:
- T_bp = CRM_PLL_MULT_54;
- break;
- case 55:
- T_bp = CRM_PLL_MULT_55;
- break;
- case 56:
- T_bp = CRM_PLL_MULT_56;
- break;
- case 57:
- T_bp = CRM_PLL_MULT_57;
- break;
- case 58:
- T_bp = CRM_PLL_MULT_58;
- break;
- case 59:
- T_bp = CRM_PLL_MULT_59;
- break;
- case 60:
- T_bp = CRM_PLL_MULT_60;
- break;
- case 61:
- T_bp = CRM_PLL_MULT_61;
- break;
- case 62:
- T_bp = CRM_PLL_MULT_62;
- break;
- case 63:
- T_bp = CRM_PLL_MULT_63;
- break;
- case 64:
- T_bp = CRM_PLL_MULT_64;
- break;
- default:
- T_bp = CRM_PLL_MULT_4;
- break;
- }
- /* reset crm */
- crm_reset();
- /* enable hext */
- 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, T_bp, CRM_PLL_OUTPUT_RANGE_GT72MHZ);
- /* 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();
- }
复制代码 |
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