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stm32h7/linum-stm32h753bi: Add support to eeprom using the i2c3

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Signed-off-by: Jorge Guzman <jorge.gzm@gmail.com>
This commit is contained in:
Jorge Guzman 2024-03-05 23:35:34 -03:00 committed by Xiang Xiao
parent b4b7710c63
commit 4b5ad956c3
9 changed files with 267 additions and 16 deletions
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13
Documentation/platforms/arm/stm32h7/boards/linum-stm32h753bi/index.rst
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@ -225,7 +225,7 @@ The LINUM-STM32H753BI connects the EEPROM memory and the touchscreen sensor to I
EEPROM MEMORY
--------------
EEPROM memory used is the 24LC256 with 256Kb.
EEPROM memory used is the 24LC256 with 256Kb with the control bytes value 0x54.
TOUCHSCREEN SENSOR
------------------
@ -447,3 +447,14 @@ The SD card can then be mounted by the NSH commands::
test_file.txt
nsh> cat /mnt/test_file.txt
Hello World!!
eeprom
------
Use dd command to write and read data from EEPROM as below:::
nsh> dd if=/dev/console of=/dev/eeprom bs=1 count=35
Witte-Tech Linum-STM32H753BI board
nsh> dd if=/dev/eeprom of=/dev/console bs=4 count=35
Witte-Tech Linum-STM32H753BI board
nsh>

60
boards/arm/stm32h7/linum-stm32h753bi/configs/eeprom/defconfig Normal file
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@ -0,0 +1,60 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_STANDARD_SERIAL is not set
# CONFIG_STM32H7_USE_LEGACY_PINMAP is not set
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="linum-stm32h753bi"
CONFIG_ARCH_BOARD_LINUM_STM32H753BI=y
CONFIG_ARCH_CHIP="stm32h7"
CONFIG_ARCH_CHIP_STM32H753BI=y
CONFIG_ARCH_CHIP_STM32H7=y
CONFIG_ARCH_CHIP_STM32H7_CORTEXM7=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARMV7M_DCACHE=y
CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y
CONFIG_ARMV7M_DTCM=y
CONFIG_ARMV7M_ICACHE=y
CONFIG_BOARD_LOOPSPERMSEC=43103
CONFIG_BUILTIN=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEV_ZERO=y
CONFIG_EEPROM=y
CONFIG_EXAMPLES_ALARM=y
CONFIG_FS_PROCFS=y
CONFIG_I2C=y
CONFIG_I2C_EE_24XX=y
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBM=y
CONFIG_MM_REGIONS=4
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_DISABLE_IFUPDOWN=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_RAM_SIZE=245760
CONFIG_RAM_START=0x20010000
CONFIG_RAW_BINARY=y
CONFIG_RR_INTERVAL=200
CONFIG_RTC_ALARM=y
CONFIG_RTC_DATETIME=y
CONFIG_RTC_DRIVER=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_STM32H7_I2C3=y
CONFIG_STM32H7_PWR=y
CONFIG_STM32H7_RTC=y
CONFIG_STM32H7_USART1=y
CONFIG_SYSTEM_NSH=y
CONFIG_TASK_NAME_SIZE=0
CONFIG_USART1_SERIAL_CONSOLE=y

26
boards/arm/stm32h7/linum-stm32h753bi/include/board.h
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@ -382,21 +382,19 @@
#define GPIO_OTGFS_DM (GPIO_OTGFS_DM_0 | GPIO_SPEED_100MHz)
#define GPIO_OTGFS_DP (GPIO_OTGFS_DP_0 | GPIO_SPEED_100MHz)
/* SDMMC1 Pin mapping
* CLK - PC12
* CMD - PD2
* D0 - PC8
* D1 - PC9
* D2 - PC10
* D3 - PC11
*/
/* SDMMC1 - Used SD Card memory */
#define GPIO_SDMMC1_CK (GPIO_SDMMC1_CK_0 | GPIO_SPEED_100MHz)
#define GPIO_SDMMC1_CMD (GPIO_SDMMC1_CMD_0 | GPIO_SPEED_100MHz)
#define GPIO_SDMMC1_D0 (GPIO_SDMMC1_D0_0 | GPIO_SPEED_100MHz)
#define GPIO_SDMMC1_D1 (GPIO_SDMMC1_D1_0 | GPIO_SPEED_100MHz)
#define GPIO_SDMMC1_D2 (GPIO_SDMMC1_D2_0 | GPIO_SPEED_100MHz)
#define GPIO_SDMMC1_D3 (GPIO_SDMMC1_D3_0 | GPIO_SPEED_100MHz)
#define GPIO_SDMMC1_CK (GPIO_SDMMC1_CK_0 | GPIO_SPEED_100MHz) /* PC12 */
#define GPIO_SDMMC1_CMD (GPIO_SDMMC1_CMD_0 | GPIO_SPEED_100MHz) /* PD2 */
#define GPIO_SDMMC1_D0 (GPIO_SDMMC1_D0_0 | GPIO_SPEED_100MHz) /* PC8 */
#define GPIO_SDMMC1_D1 (GPIO_SDMMC1_D1_0 | GPIO_SPEED_100MHz) /* PC9 */
#define GPIO_SDMMC1_D2 (GPIO_SDMMC1_D2_0 | GPIO_SPEED_100MHz) /* PC10 */
#define GPIO_SDMMC1_D3 (GPIO_SDMMC1_D3_0 | GPIO_SPEED_100MHz) /* PC11 */
/* I2C3 - Used by eeprom memory */
#define GPIO_I2C3_SCL (GPIO_I2C3_SCL_2 | GPIO_SPEED_100MHz) /* PH7 */
#define GPIO_I2C3_SDA (GPIO_I2C3_SDA_2 | GPIO_SPEED_100MHz) /* PH8 */
/****************************************************************************
* Public Data

4
boards/arm/stm32h7/linum-stm32h753bi/src/CMakeLists.txt
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@ -44,6 +44,10 @@ if(CONFIG_FAT_DMAMEMORY)
list(APPEND SRCS stm32_dma_alloc.c)
endif()
if(CONFIG_I2C_EE_24XX)
list(APPEND SRCS stm32_at24.c)
endif()
target_sources(board PRIVATE ${SRCS})
set_property(GLOBAL PROPERTY LD_SCRIPT "${NUTTX_BOARD_DIR}/scripts/flash.ld")

4
boards/arm/stm32h7/linum-stm32h753bi/src/Makefile
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@ -42,6 +42,10 @@ ifeq ($(CONFIG_FAT_DMAMEMORY),y)
CSRCS += stm32_dma_alloc.c
endif
ifeq ($(CONFIG_I2C_EE_24XX),y)
CSRCS += stm32_at24.c
endif
ifeq ($(CONFIG_BOARDCTL),y)
CSRCS += stm32_appinitialize.c
endif

12
boards/arm/stm32h7/linum-stm32h753bi/src/linum-stm32h753bi.h
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@ -160,4 +160,16 @@ int stm32_dma_alloc_init(void);
int stm32_sdio_initialize(void);
#endif
/****************************************************************************
* Name: stm32_at24_init
*
* Description:
* Initialize and register the EEPROM for 24XX driver.
*
****************************************************************************/
#ifdef CONFIG_I2C_EE_24XX
int stm32_at24_init(char *path);
#endif
#endif /* __BOARDS_ARM_STM32H7_LINUM_STM32H753BI_SRC_LINUM_STM32H753BI_H */

96
boards/arm/stm32h7/linum-stm32h753bi/src/stm32_at24.c Normal file
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@ -0,0 +1,96 @@
/****************************************************************************
* boards/arm/stm32h7/linum-stm32h753bi/src/stm32_at24.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/mount.h>
#include <stdbool.h>
#include <stdio.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/i2c/i2c_master.h>
#include <nuttx/eeprom/i2c_xx24xx.h>
#include "stm32_i2c.h"
#include "linum-stm32h753bi.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define AT24_I2C_BUS 3 /* EEPROM chip is configured to use I2C3 */
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: stm32_at24_init
*
* Description:
* Initialize and configure the AT24 serial EEPROM
*
****************************************************************************/
int stm32_at24_init(char *path)
{
FAR struct i2c_master_s *i2c;
static bool initialized = false;
int ret;
/* Have we already initialized? */
if (!initialized)
{
/* No.. Get the I2C bus driver */
finfo("Initialize I2C%d\n", AT24_I2C_BUS);
i2c = stm32_i2cbus_initialize(AT24_I2C_BUS);
if (!i2c)
{
ferr("ERROR: Failed to initialize I2C%d\n", AT24_I2C_BUS);
return -ENODEV;
}
/* Now bind the I2C interface to the AT24 I2C EEPROM driver */
finfo("Bind the AT24 EEPROM driver to I2C%d\n", AT24_I2C_BUS);
ret = ee24xx_initialize(i2c, 0x54, path, EEPROM_24XX256, false);
if (ret < 0)
{
ferr("ERROR: Failed to bind I2C%d to the AT24 EEPROM driver\n",
AT24_I2C_BUS);
return -ENODEV;
}
/* Now we are initialized */
initialized = true;
}
return OK;
}

66
boards/arm/stm32h7/linum-stm32h753bi/src/stm32_bringup.c
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@ -32,6 +32,7 @@
#include <nuttx/kmalloc.h>
#include "stm32_gpio.h"
#include "stm32_i2c.h"
#include "linum-stm32h753bi.h"
@ -48,6 +49,58 @@
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: stm32_i2c_register
*
* Description:
* Register one I2C drivers for the I2C tool.
*
****************************************************************************/
#if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL)
static void stm32_i2c_register(int bus)
{
struct i2c_master_s *i2c;
int ret;
i2c = stm32_i2cbus_initialize(bus);
if (i2c == NULL)
{
syslog(LOG_ERR, "ERROR: Failed to get I2C%d interface\n", bus);
}
else
{
ret = i2c_register(i2c, bus);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to register I2C%d driver: %d\n",
bus, ret);
stm32_i2cbus_uninitialize(i2c);
}
}
}
#endif
/****************************************************************************
* Name: stm32_i2ctool
*
* Description:
* Register I2C drivers for the I2C tool.
*
****************************************************************************/
#if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL)
static void stm32_i2ctool(void)
{
#ifdef CONFIG_STM32H7_I2C3
stm32_i2c_register(3);
#endif
#ifdef CONFIG_STM32H7_I2C4
stm32_i2c_register(4);
#endif
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
@ -142,5 +195,18 @@ int stm32_bringup(void)
}
#endif
#if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL)
stm32_i2ctool();
#endif
#ifdef CONFIG_I2C_EE_24XX
ret = stm32_at24_init("/dev/eeprom");
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize EEPROM HX24LCXXB: %d\n", ret);
return ret;
}
#endif
return OK;
}

2
drivers/eeprom/i2c_xx24xx.c
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@ -873,7 +873,7 @@ int ee24xx_initialize(FAR struct i2c_master_s *bus, uint8_t devaddr,
}
}
finfo("EEPROM device %s, %d bytes, %d per page, addrlen %d, %s\n",
finfo("EEPROM device %s, %" PRIu32 " bytes, %d per page, addrlen %d, %s\n",
devname, eedev->size, eedev->pgsize, eedev->addrlen,
eedev->readonly ? "readonly" : "");