benoit poulain / Mbed 2 deprecated Exemple_Blinky

cours 1

Dependencies:   mbed USBDevice

main.h@9:41207561508d, 2020-10-01 (annotated)

Committer:
kanope_benny
Date:
Thu Oct 01 12:11:56 2020 +0000
Revision:
9:41207561508d
update

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kanope_benny 9:41207561508d 1
kanope_benny 9:41207561508d 2 #include "mbed.h"
kanope_benny 9:41207561508d 3
kanope_benny 9:41207561508d 4
kanope_benny 9:41207561508d 5
kanope_benny 9:41207561508d 6 void setup(void)
kanope_benny 9:41207561508d 7 {
kanope_benny 9:41207561508d 8 RCC_ClkInitTypeDef RCC_ClkInitStruct;
kanope_benny 9:41207561508d 9 RCC_OscInitTypeDef RCC_OscInitStruct;
kanope_benny 9:41207561508d 10
kanope_benny 9:41207561508d 11 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
kanope_benny 9:41207561508d 12 RCC_OscInitStruct.HSEState = RCC_HSE_ON;
kanope_benny 9:41207561508d 13
kanope_benny 9:41207561508d 14 RCC_OscInitStruct.LSIState = RCC_LSI_ON;
kanope_benny 9:41207561508d 15 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
kanope_benny 9:41207561508d 16 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
kanope_benny 9:41207561508d 17
kanope_benny 9:41207561508d 18 RCC_OscInitStruct.PLL.PLLM = 25; // VCO input clock = 1 MHz (25 MHz / 25)
kanope_benny 9:41207561508d 19 RCC_OscInitStruct.PLL.PLLN = 192; // VCO output clock = 192 MHz (1 MHz * 192)
kanope_benny 9:41207561508d 20 RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; // PLLCLK = 96 MHz (192 MHz / 2)
kanope_benny 9:41207561508d 21 RCC_OscInitStruct.PLL.PLLQ = 4; // USB clock = 48 MHz (192 MHz / 4) --> Good for USB
kanope_benny 9:41207561508d 22
kanope_benny 9:41207561508d 23 HAL_RCC_OscConfig(&RCC_OscInitStruct);
kanope_benny 9:41207561508d 24
kanope_benny 9:41207561508d 25 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
kanope_benny 9:41207561508d 26 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
kanope_benny 9:41207561508d 27 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
kanope_benny 9:41207561508d 28 HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
kanope_benny 9:41207561508d 29
kanope_benny 9:41207561508d 30 SystemCoreClockUpdate();
kanope_benny 9:41207561508d 31 SystemCoreClock = 96000000;
kanope_benny 9:41207561508d 32
kanope_benny 9:41207561508d 33 //HAL_RCC_MCOConfig(RCC_MCO2, RCC_MCO2SOURCE_SYSCLK, RCC_MCODIV_1); // output SYSCLOCK to pin PC9 to monitor frequency
kanope_benny 9:41207561508d 34 }
kanope_benny 9:41207561508d 35
kanope_benny 9:41207561508d 36