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rohitkumarkv07
Associate III
Apr 17, 2024 7:57 AM UTC
Question

STM32F407 clock setup using registers

Hello, 

I ty to configure the clock setup of stm32f407 board using registers .

But I am not getting the values of Registers in the SFR while debugging.

Since I am enabling the GPIOD in the AHB1ENR registers but still I am not getting the value during the debug.

This topic has been closed for replies.

8 replies

rohitkumarkv07Author
Associate III
Apr 17, 2024 7:58 AM UTC

..

Andrew Neil
Andrew Neil
Super User
Apr 17, 2024 8:00 AM UTC

Try using CubeMX to generate the setup you require, then extract the register values from that.

 

Please use this button to properly post source code:

AndrewNeil_0-1713340992769.png

 

 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
rohitkumarkv07Author
Associate III
Apr 17, 2024 8:09 AM UTC
#include "Mcu.h"
#include"stm32f407xx.h"
int main()
{


	Mcu_Init(&Mcu_ConfigSet[0]);
	Mcu_InitClock(0);
	Mcu_Init(&Mcu_ConfigSet[0]);
	while(1)
	{
		;
	}
}
#include <Mcu_Internal.h>



PwrConfigType PWR_ConfigSet[1] =
{
		{
				/*PwrCRConfgVal*/
				{
						VOS_SCALE_1 ,
						FPDS_NOT_POWER_DOWN ,
						DBP_DISABLED,
						PLS20V ,
						PVDE_DISABLED ,
						PDDS_STOP_MODE ,
						LPDS_STOP_MODE,
				},

				/*PwrCSRConfgVal*/
				{
						BRE_DISABLED ,
						EWUP_NOT_WAKEUP,
				}
		}
};

FLASHConfigType FLASH_ConfigSet[1]=
{
		{
				/*FLASHACRConfgVal*/
				{
						DCRST_NOT_RESET ,
						ICRST_NOT_RESET,
						LATENCY_FIVE_STATE,
						DCEN_ENABLED,
						ICEN_ENABLED,
						PRFTEN_ENABLED,
				}
		}
};

McuClockConfigType Mcu_ClockConfigSet[1] =
{
		/*Mcu_ClockConfigSet-1*/
		{
				/*McuCRConfgVal*/
				{
						/*HSION */
						HSION_OFF,
						/*HSITRIM */
						HSITRIM,
						/*HSEON */
						HSE_ON,
						/*HSEBYP */
						HSEBYP_OFF,
						/*CSSON */
						CSS_OFF,
						/*PLLON */
						PLL_ON,
						/*PLLI2SON */
						PLLI2S_OFF,

				},
				/*McuPLLCFGRConfgVal*/
				{

						/*PLLM*/
						PLLM_8,
						/*PLLN*/
						PLLN_336,
						/*PLLP*/
						PLLP_2,
						/*PLLSRC_HSE*/
						PLLSRC_HSE,
						/*PLLQ*/
						PLLQ_7,

				},

				/*McuCFGRConfgVal*/
				{
						PRE2_AHB_2,
						PRE1_AHB_4,
						HRPE_SYSCLK_1,
						SW_PLL ,
						MCO2_SYSCLK,
					 MCO2PRE_2 ,
						MCO1PRE_2 ,
						I2SSRC_PLL ,
						MCO1_HSE ,
			 		RTC_PREHSE_1,
				},


				/*McuCIRConfgVal*/
				{
						PLLI2SRDYIELI_DISABLED,
						PLLRDYIELI_DISABLED ,
						HSERDYIEI_DISABLED ,
						HSIRDYIEI_DISABLED ,
						LSERDYIEI_DISABLED ,
						LSIRDYIEI_DISABLED,

				},
				/*McuAHB1ENRConfgVal*/
				{
						OTGHSULPIEN_DISABLED,
						OTGHSEN_DISABLED,
						ETHMACPTPEN_DISABLED,
						ETHMACRXEN_DISABLED,
						ETHMACTXEN_DISABLED,
						ETHMACEN_DISABLED,
						DMA2EN_DISABLED,
						DMA1EN_DISABLED,
						CCMDATARAMEN_DISABLED,
						BKPSRAMEN_DISABLED,
						CRCEN_DISABLED,
						GPIOIEN_DISABLED,
						GPIOHEN_DISABLED,
						GPIOGEN_DISABLED,
						GPIOFEN_DISABLED,
						GPIOEEN_DISABLED,
						GPIODEN_ENABLED,
						GPIOCEN_DISABLED,
						GPIOBEN_DISABLED,
						GPIOAEN_DISABLED
				},
				/*McuAHB2ENRConfgVal*/
				{
						OTGFSEN_DISABLED,
						RNGEN_DISABLED,
						HASHEN_DISABLED,
						CRYPEN_DISABLED,
						DCMIEN_DISABLED,
				},
				/*McuAPB3ENRConfgVal*/
				{
						FSMCEN_DISABLED,
				},
				/*McuAPB1ENRConfgVal*/
				{
						DACEN_DISABLED,
						PWREN_ENABLED,
						CAN2EN_DISABLED,
						CAN1EN_DISABLED,
						I2C3EN_DISABLED,
						I2C2EN_DISABLED,
						I2C1EN_DISABLED,
						UART5EN_DISABLED,
						UART4EN_DISABLED,
						USART3EN_DISABLED,
						USART2EN_DISABLED,
						SPI3EN_DISABLED,
						SPI2EN_DISABLED,
						WWDGEN_DISABLED,
						TIM14EN_DISABLED,
						TIM13EN_DISABLED,
						TIM12EN_DISABLED,
						TIM7EN_DISABLED,
						TIM6EN_DISABLED,
						TIM5EN_DISABLED,
						TIM4EN_DISABLED,
						TIM3EN_DISABLED,
						TIM2EN_ENABLED,
				},
				/*McuAPB2ENRConfgVal*/
				{
						TIM11EN_DISABLED,
						TIM10EN_DISABLED,
						TIM9EN_DISABLED,
						SYSCFGEN_DISABLED,
						SPI1EN_DISABLED,
						SDIOEN_DISABLED,
						ADC3EN_DISABLED,
						ADC2EN_DISABLED,
						ADC1EN_DISABLED,
						USART6EN_DISABLED,
						USART1EN_DISABLED,
						TIM8EN_DISABLED,
						TIM1EN_DISABLED,
				},
				/*McuBDCRConfgVal*/
				{

						BDRST_RESET_NOTACTIVATED ,
						RTCEN_CLOCK_DISABLED ,
						RTCSEL_NO ,
						LSEBYP_NOT_BYPASSED ,
						LSEON_OFF,

				},
				/*McuCSRConfgVal*/
				{
						LSION_OFF,
				},
				/*McuSSCGRConfgVal*/
				{

						SSCGEN_DISABLE,
						SPREADSEL_CENTRE,

				},
				/*McuPLLI2SCFGRConfgVal*/
				{

						PLLI2SR2 ,
						PLLI2SN0,

				},
		}

};


Mcu_ConfigType Mcu_ConfigSet[1]=
{
		{
				&PWR_ConfigSet[0],

				&Mcu_ClockConfigSet[0],

				&FLASH_ConfigSet[0]
		}
};

 

This is my code for stm32f407 board for the clock setup using registers. can you look at this and help me with this.

Andrew Neil
Andrew Neil
Super User
Apr 17, 2024 8:18 AM UTC

You haven't showed the code for your Mcu_InitClock() function.

Again, why not create a working setup using CubeMX - then take the required settings from that?

Then debug your code against the Cube code.

Just on a question of style why:

Mcu_ConfigType Mcu_ConfigSet[1]=
{
		{
				&PWR_ConfigSet[0],
				&Mcu_ClockConfigSet[0],
				&FLASH_ConfigSet[0]
		}
};

instead of just

Mcu_ConfigType Mcu_ConfigSet[1]=
{
		{
				PWR_ConfigSet,
				Mcu_ClockConfigSet,
				FLASH_ConfigSet
		}
};

 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
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