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Updates for STM3210E-EVAL SRAM

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4579 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-04-09 19:38:26 +00:00
parent 72eaacf985
commit 479255aae3
3 changed files with 132 additions and 102 deletions
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configs/stm3210e-eval/README.txt
+16
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@@ -16,6 +16,7 @@ Contents
- LEDs - LEDs
- Temperature Sensor - Temperature Sensor
- RTC - RTC
- FSMC SRAM
- STM3210E-EVAL-specific Configuration Options - STM3210E-EVAL-specific Configuration Options
- Configurations - Configurations
@@ -350,6 +351,21 @@ RTC
overflow interrupt may be lost even if the STM32 is powered down only momentarily. overflow interrupt may be lost even if the STM32 is powered down only momentarily.
Therefore hi-res solution is only useful in systems where the power is always on. Therefore hi-res solution is only useful in systems where the power is always on.
FSMC SRAM
=========
The 8-Mbit SRAM is connected to the STM32 at PG10 which will be FSMC_NE3, Bank1
SRAM3. This memory will appear at address 0x68000000.
The on-board SRAM can be configured by setting
CONFIG_STM32_FSMC=y : Enables the FSMC
CONFIG_STM32_FSMC_SRAM=y : Enable external SRAM support
CONFIG_HEAP2_BASE=0x68000000 : SRAM will be located at 0x680000000
CONFIG_HEAP2_END=(0x68000000+(1*1024*1024)) : The size of the SRAM is 1Mbyte
CONFIG_MM_REGIONS=2 : There will be two memory regions
: in the heap
STM3210E-EVAL-specific Configuration Options STM3210E-EVAL-specific Configuration Options
============================================ ============================================
configs/stm3210e-eval/include/board.h
+8
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@@ -144,6 +144,14 @@
# define SDIO_SDXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT) # define SDIO_SDXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT)
#endif #endif
/* SRAM definitions *****************************************************************/
/* The 8 Mbit SRAM is provided on the PT3 board using the FSMC_NE3 chip select. */
/* This is the Bank1 SRAM3 address: */
#define BOARD_SRAM_BASE 0x68000000 /* Bank2 SRAM3 base address */
#define BOARD_SRAM_SIZE (1*1024*1024) /* 8-Mbit = 1-Mbyte */
/* LED definitions ******************************************************************/ /* LED definitions ******************************************************************/
/* The STM3210E-EVAL board has 4 LEDs that we will encode as: */ /* The STM3210E-EVAL board has 4 LEDs that we will encode as: */
configs/stm3210e-eval/src/up_boot.c
+108 -102
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@@ -1,102 +1,108 @@
/************************************************************************************ /************************************************************************************
* configs/stm3210e-eval/src/up_boot.c * configs/stm3210e-eval/src/up_boot.c
* arch/arm/src/board/up_boot.c * arch/arm/src/board/up_boot.c
* *
* Copyright (C) 2009 Gregory Nutt. All rights reserved. * Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr> * Author: Gregory Nutt <gnutt@nuttx.org>
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
* are met: * are met:
* *
* 1. Redistributions of source code must retain the above copyright * 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. * notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright * 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in * notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the * the documentation and/or other materials provided with the
* distribution. * distribution.
* 3. Neither the name NuttX nor the names of its contributors may be * 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software * used to endorse or promote products derived from this software
* without specific prior written permission. * without specific prior written permission.
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. * POSSIBILITY OF SUCH DAMAGE.
* *
************************************************************************************/ ************************************************************************************/
/************************************************************************************ /************************************************************************************
* Included Files * Included Files
************************************************************************************/ ************************************************************************************/
#include <nuttx/config.h> #include <nuttx/config.h>
#include <debug.h> #include <debug.h>
#include <arch/board/board.h> #include <arch/board/board.h>
#include "up_arch.h" #include "up_arch.h"
#include "stm3210e-internal.h" #include "stm3210e-internal.h"
/************************************************************************************ /************************************************************************************
* Definitions * Definitions
************************************************************************************/ ************************************************************************************/
/************************************************************************************ /************************************************************************************
* Private Functions * Private Functions
************************************************************************************/ ************************************************************************************/
/************************************************************************************ /************************************************************************************
* Public Functions * Public Functions
************************************************************************************/ ************************************************************************************/
/************************************************************************************ /************************************************************************************
* Name: stm32_boardinitialize * Name: stm32_boardinitialize
* *
* Description: * Description:
* All STM32 architectures must provide the following entry point. This entry point * All STM32 architectures must provide the following entry point. This entry point
* is called early in the intitialization -- after all memory has been configured * is called early in the intitialization -- after all memory has been configured
* and mapped but before any devices have been initialized. * and mapped but before any devices have been initialized.
* *
************************************************************************************/ ************************************************************************************/
void stm32_boardinitialize(void) void stm32_boardinitialize(void)
{ {
/* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function /* If the FSMC and FSMC_SRAM are selected, then enable SRAM access */
* stm32_spiinitialize() has been brought into the link.
*/ #if defined(CONFIG_STM32_FSMC) && defined(CONFIG_STM32_FSMC_SRAM)
stm32_selectsram();
#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2) #endif
if (stm32_spiinitialize)
{ /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
stm32_spiinitialize(); * stm32_spiinitialize() has been brought into the link.
} */
#endif
#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
/* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not if (stm32_spiinitialize)
* disabled, and 3) the weak function stm32_usbinitialize() has been brought {
* into the build. stm32_spiinitialize();
*/ }
#endif
#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)
if (stm32_usbinitialize) /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
{ * disabled, and 3) the weak function stm32_usbinitialize() has been brought
stm32_usbinitialize(); * into the build.
} */
#endif
#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)
/* Configure on-board LEDs if LED support has been selected. */ if (stm32_usbinitialize)
{
#ifdef CONFIG_ARCH_LEDS stm32_usbinitialize();
up_ledinit(); }
#endif #endif
}
/* Configure on-board LEDs if LED support has been selected. */
#ifdef CONFIG_ARCH_LEDS
up_ledinit();
#endif
}