Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/system_stm32f4xx.c

Revision:

106:ced8cbb51063

Parent:

87:085cde657901

Child:

125:23cc3068a9e4

--- a/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/system_stm32f4xx.c	Mon Feb 24 10:30:08 2014 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/system_stm32f4xx.c	Wed Feb 26 09:45:12 2014 +0000
@@ -2,8 +2,8 @@
   ******************************************************************************
   * @file    system_stm32f4xx.c
   * @author  MCD Application Team
-  * @version V0.8.0
-  * @date    03-January-2014
+  * @version V1.0.0
+  * @date    18-February-2014
   * @brief   CMSIS Cortex-M4 Device Peripheral Access Layer System Source File.
   *
   *   This file provides two functions and one global variable to be called from 
@@ -26,17 +26,27 @@
   *
   * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
   *
-  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
-  * You may not use this file except in compliance with the License.
-  * You may obtain a copy of the License at:
-  *
-  *        http://www.st.com/software_license_agreement_liberty_v2
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
   *
-  * Unless required by applicable law or agreed to in writing, software 
-  * distributed under the License is distributed on an "AS IS" BASIS, 
-  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  * See the License for the specific language governing permissions and
-  * limitations under the License.
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   ******************************************************************************
   */
@@ -72,13 +82,6 @@
   */
 
 /************************* Miscellaneous Configuration ************************/
-/*!< Uncomment the following line if you need to use external SRAM or SDRAM mounted
-     on STM324xG_EVAL/STM324x9I_EVAL boards as data memory  */
-/* #define DATA_IN_ExtSRAM */ 
-/* #define DATA_IN_ExtSDRAM */
-#if defined(DATA_IN_ExtSRAM) && defined(DATA_IN_ExtSDRAM)
- #error "Please select DATA_IN_ExtSRAM or DATA_IN_ExtSDRAM " 
-#endif /* DATA_IN_ExtSRAM && DATA_IN_ExtSDRAM */
 
 /*!< Uncomment the following line if you need to relocate your vector Table in
      Internal SRAM. */
@@ -121,10 +124,6 @@
   * @{
   */
 
-#if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
-  static void SystemInit_ExtMemCtl(void); 
-#endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
-
 /**
   * @}
   */
@@ -165,10 +164,6 @@
   /* Disable all interrupts */
   RCC->CIR = 0x00000000;
 
-#if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
-  SystemInit_ExtMemCtl(); 
-#endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
-
   /* Configure the Vector Table location add offset address ------------------*/
 #ifdef VECT_TAB_SRAM
   SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
@@ -214,14 +209,14 @@
   *           - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) 
   *             or HSI_VALUE(*) multiplied/divided by the PLL factors.
   *         
-  *         (*) HSI_VALUE is a constant defined in stm32f4xx_hal.h file (default value
+  *         (*) HSI_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value
   *             16 MHz) but the real value may vary depending on the variations
   *             in voltage and temperature.   
   *    
-  *         (**) HSE_VALUE is a constant defined in stm32f4xx_hal.h file (default value
-  *              25 MHz), user has to ensure that HSE_VALUE is same as the real
-  *              frequency of the crystal used. Otherwise, this function may
-  *              have wrong result.
+  *         (**) HSE_VALUE is a constant defined in stm32f4xx_hal_conf.h file (its value
+  *              depends on the application requirements), user has to ensure that HSE_VALUE
+  *              is same as the real frequency of the crystal used. Otherwise, this function
+  *              may have wrong result.
   *                
   *         - The result of this function could be not correct when using fractional
   *           value for HSE crystal.
@@ -277,237 +272,6 @@
   SystemCoreClock >>= tmp;
 }
 
-#if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
-/**
-  * @brief  Setup the external memory controller.
-  *         Called in startup_stm32f4xx.s before jump to main.
-  *         This function configures the external memories (SRAM/SDRAM)
-  *         This SRAM/SDRAM will be used as program data memory (including heap and stack).
-  * @param  None
-  * @retval None
-  */
-void SystemInit_ExtMemCtl(void)
-{
-#if defined (DATA_IN_ExtSDRAM)
-  register uint32_t tmpreg = 0, timeout = 0xFFFF;
-  register uint32_t index;
-
-  /* Enable GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH and GPIOI interface 
-      clock */
-  RCC->AHB1ENR |= 0x000001FC;
-  
-  /* Connect PCx pins to FMC Alternate function */
-  GPIOC->AFR[0]  = 0x0000000c;
-  GPIOC->AFR[1]  = 0x00007700;
-  /* Configure PCx pins in Alternate function mode */  
-  GPIOC->MODER   = 0x00a00002;
-  /* Configure PCx pins speed to 50 MHz */  
-  GPIOC->OSPEEDR = 0x00a00002;
-  /* Configure PCx pins Output type to push-pull */  
-  GPIOC->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PCx pins */ 
-  GPIOC->PUPDR   = 0x00500000;
-  
-  /* Connect PDx pins to FMC Alternate function */
-  GPIOD->AFR[0]  = 0x000000CC;
-  GPIOD->AFR[1]  = 0xCC000CCC;
-  /* Configure PDx pins in Alternate function mode */  
-  GPIOD->MODER   = 0xA02A000A;
-  /* Configure PDx pins speed to 50 MHz */  
-  GPIOD->OSPEEDR = 0xA02A000A;
-  /* Configure PDx pins Output type to push-pull */  
-  GPIOD->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PDx pins */ 
-  GPIOD->PUPDR   = 0x00000000;
-
-  /* Connect PEx pins to FMC Alternate function */
-  GPIOE->AFR[0]  = 0xC00000CC;
-  GPIOE->AFR[1]  = 0xCCCCCCCC;
-  /* Configure PEx pins in Alternate function mode */ 
-  GPIOE->MODER   = 0xAAAA800A;
-  /* Configure PEx pins speed to 50 MHz */ 
-  GPIOE->OSPEEDR = 0xAAAA800A;
-  /* Configure PEx pins Output type to push-pull */  
-  GPIOE->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PEx pins */ 
-  GPIOE->PUPDR   = 0x00000000;
-
-  /* Connect PFx pins to FMC Alternate function */
-  GPIOF->AFR[0]  = 0xcccccccc;
-  GPIOF->AFR[1]  = 0xcccccccc;
-  /* Configure PFx pins in Alternate function mode */   
-  GPIOF->MODER   = 0xAA800AAA;
-  /* Configure PFx pins speed to 50 MHz */ 
-  GPIOF->OSPEEDR = 0xAA800AAA;
-  /* Configure PFx pins Output type to push-pull */  
-  GPIOF->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PFx pins */ 
-  GPIOF->PUPDR   = 0x00000000;
-
-  /* Connect PGx pins to FMC Alternate function */
-  GPIOG->AFR[0]  = 0xcccccccc;
-  GPIOG->AFR[1]  = 0xcccccccc;
-  /* Configure PGx pins in Alternate function mode */ 
-  GPIOG->MODER   = 0xaaaaaaaa;
-  /* Configure PGx pins speed to 50 MHz */ 
-  GPIOG->OSPEEDR = 0xaaaaaaaa;
-  /* Configure PGx pins Output type to push-pull */  
-  GPIOG->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PGx pins */ 
-  GPIOG->PUPDR   = 0x00000000;
-  
-  /* Connect PHx pins to FMC Alternate function */
-  GPIOH->AFR[0]  = 0x00C0CC00;
-  GPIOH->AFR[1]  = 0xCCCCCCCC;
-  /* Configure PHx pins in Alternate function mode */ 
-  GPIOH->MODER   = 0xAAAA08A0;
-  /* Configure PHx pins speed to 50 MHz */ 
-  GPIOH->OSPEEDR = 0xAAAA08A0;
-  /* Configure PHx pins Output type to push-pull */  
-  GPIOH->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PHx pins */ 
-  GPIOH->PUPDR   = 0x00000000;
-  
-  /* Connect PIx pins to FMC Alternate function */
-  GPIOI->AFR[0]  = 0xCCCCCCCC;
-  GPIOI->AFR[1]  = 0x00000CC0;
-  /* Configure PIx pins in Alternate function mode */ 
-  GPIOI->MODER   = 0x0028AAAA;
-  /* Configure PIx pins speed to 50 MHz */ 
-  GPIOI->OSPEEDR = 0x0028AAAA;
-  /* Configure PIx pins Output type to push-pull */  
-  GPIOI->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PIx pins */ 
-  GPIOI->PUPDR   = 0x00000000;
-  
-/*-- FMC Configuration ------------------------------------------------------*/
-  /* Enable the FMC interface clock */
-  RCC->AHB3ENR |= 0x00000001;
-  
-  /* Configure and enable SDRAM bank1 */
-  FMC_Bank5_6->SDCR[0] = 0x000029D0;
-  FMC_Bank5_6->SDTR[0] = 0x01115351;      
-  
-  /* SDRAM initialization sequence */
-  /* Clock enable command */
-  FMC_Bank5_6->SDCMR = 0x00000011; 
-  tmpreg = FMC_Bank5_6->SDSR & 0x00000020; 
-  while((tmpreg != 0) && (timeout-- > 0))
-  {
-    tmpreg = FMC_Bank5_6->SDSR & 0x00000020; 
-  }
-
-  /* Delay */
-  for (index = 0; index<1000; index++);
-  
-  /* PALL command */
-  FMC_Bank5_6->SDCMR = 0x00000012;           
-  timeout = 0xFFFF;
-  while((tmpreg != 0) && (timeout-- > 0))
-  {
-    tmpreg = FMC_Bank5_6->SDSR & 0x00000020; 
-  }
-  
-  /* Auto refresh command */
-  FMC_Bank5_6->SDCMR = 0x00000073;
-  timeout = 0xFFFF;
-  while((tmpreg != 0) && (timeout-- > 0))
-  {
-    tmpreg = FMC_Bank5_6->SDSR & 0x00000020; 
-  }
- 
-  /* MRD register program */
-  FMC_Bank5_6->SDCMR = 0x00046014;
-  timeout = 0xFFFF;
-  while((tmpreg != 0) && (timeout-- > 0))
-  {
-    tmpreg = FMC_Bank5_6->SDSR & 0x00000020; 
-  } 
-  
-  /* Set refresh count */
-  tmpreg = FMC_Bank5_6->SDRTR;
-  FMC_Bank5_6->SDRTR = (tmpreg | (0x0000027C<<1));
-  
-  /* Disable write protection */
-  tmpreg = FMC_Bank5_6->SDCR[0]; 
-  FMC_Bank5_6->SDCR[0] = (tmpreg & 0xFFFFFDFF);
-#endif /* DATA_IN_ExtSDRAM */
-
-#if defined(DATA_IN_ExtSRAM)
-/*-- GPIOs Configuration -----------------------------------------------------*/
-   /* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
-  RCC->AHB1ENR   |= 0x00000078;
-  
-  /* Connect PDx pins to FMC Alternate function */
-  GPIOD->AFR[0]  = 0x00ccc0cc;
-  GPIOD->AFR[1]  = 0xcccccccc;
-  /* Configure PDx pins in Alternate function mode */  
-  GPIOD->MODER   = 0xaaaa0a8a;
-  /* Configure PDx pins speed to 100 MHz */  
-  GPIOD->OSPEEDR = 0xffff0fcf;
-  /* Configure PDx pins Output type to push-pull */  
-  GPIOD->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PDx pins */ 
-  GPIOD->PUPDR   = 0x00000000;
-
-  /* Connect PEx pins to FMC Alternate function */
-  GPIOE->AFR[0]  = 0xc00cc0cc;
-  GPIOE->AFR[1]  = 0xcccccccc;
-  /* Configure PEx pins in Alternate function mode */ 
-  GPIOE->MODER   = 0xaaaa828a;
-  /* Configure PEx pins speed to 100 MHz */ 
-  GPIOE->OSPEEDR = 0xffffc3cf;
-  /* Configure PEx pins Output type to push-pull */  
-  GPIOE->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PEx pins */ 
-  GPIOE->PUPDR   = 0x00000000;
-
-  /* Connect PFx pins to FMC Alternate function */
-  GPIOF->AFR[0]  = 0x00cccccc;
-  GPIOF->AFR[1]  = 0xcccc0000;
-  /* Configure PFx pins in Alternate function mode */   
-  GPIOF->MODER   = 0xaa000aaa;
-  /* Configure PFx pins speed to 100 MHz */ 
-  GPIOF->OSPEEDR = 0xff000fff;
-  /* Configure PFx pins Output type to push-pull */  
-  GPIOF->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PFx pins */ 
-  GPIOF->PUPDR   = 0x00000000;
-
-  /* Connect PGx pins to FMC Alternate function */
-  GPIOG->AFR[0]  = 0x00cccccc;
-  GPIOG->AFR[1]  = 0x000000c0;
-  /* Configure PGx pins in Alternate function mode */ 
-  GPIOG->MODER   = 0x00085aaa;
-  /* Configure PGx pins speed to 100 MHz */ 
-  GPIOG->OSPEEDR = 0x000cafff;
-  /* Configure PGx pins Output type to push-pull */  
-  GPIOG->OTYPER  = 0x00000000;
-  /* No pull-up, pull-down for PGx pins */ 
-  GPIOG->PUPDR   = 0x00000000;
-  
-/*-- FMC/FSMC Configuration --------------------------------------------------*/                                                                               
-  /* Enable the FMC/FSMC interface clock */
-  RCC->AHB3ENR         |= 0x00000001;
-  
-#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx) 
-  /* Configure and enable Bank1_SRAM2 */
-  FMC_Bank1->BTCR[2]  = 0x00001011;
-  FMC_Bank1->BTCR[3]  = 0x00000201;
-  FMC_Bank1E->BWTR[2] = 0x0fffffff;
-#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */ 
-
-#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx)|| defined(STM32F417xx)
-  /* Configure and enable Bank1_SRAM2 */
-  FSMC_Bank1->BTCR[2]  = 0x00001011;
-  FSMC_Bank1->BTCR[3]  = 0x00000201;
-  FSMC_Bank1E->BWTR[2] = 0x0fffffff;
-#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx */
-
-#endif /* DATA_IN_ExtSRAM */
- 
-}
-#endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
 /**
   * @}
   */