configs/nucleo-l432kc: Added support for AT45DB Serial Flash
This commit is contained in:
Daniel P. Carvalho
Gregory Nutt
parent
bde9b10b1d
commit
578114a74f
@ -108,7 +108,7 @@
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#define NR_IRQS 48
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/* Common register save structgure created by up_saveusercontext() and by
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/* Common register save structure created by up_saveusercontext() and by
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* ISR/IRQ interrupt processing.
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*/
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@ -52,6 +52,7 @@ Contents
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- USARTs and Serial Consoles
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- QFN32
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- mbed
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- SPI Flash support
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- Configurations
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Nucleo-32 Boards
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@ -441,6 +442,61 @@ Serial Consoles
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As shipped, SB62 and SB63 are open and SB13 and SB14 closed, so the
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virtual COM port is enabled.
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SPI Flash support:
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=====================
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We can use an external SPI Serial Flash with nucleo-l432kc board. In this
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case we tested with AT45DB081D (8Mbit = 1MiB).
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You can connect the AT45DB081D memory in the nucleo-l432kc board this way:
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--------------------------------
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| Memory nucleo-l432kc |
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|------------------------------|
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| SI ---> D11 (PB5) |
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| SCK ---> D13 (PB3) |
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| /RESET ---> 3V3 |
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| /CS ---> D10 (PA11) |
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| /WP ---> 3V3 |
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| VCC ---> 3V3 |
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| GND ---> GND |
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| SO ---> D12 (PB4) |
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--------------------------------
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You can start with default "nucleo-l432kc/nsh" configuration option and
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enable/disable these options using "make menuconfig" :
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System Type --->
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STM32L4 Peripheral Support --->
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[*] SPI1
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Device Drivers --->
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-*- Memory Technology Device (MTD) Support --->
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-*- SPI-based AT45DB flash
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(1000000) AT45DB Frequency
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File Systems --->
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[*] NXFFS file system
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Then after compiling and flashing the file nuttx.bin you can test the flash
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this way:
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nsh> ls /mnt
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/mnt:
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at45db/
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nsh> echo "Testing" > /mnt/at45db/file.txt
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nsh> ls /mnt/at45db
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/mnt/at45db:
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file.txt
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nsh> cat /mnt/at45db/file.txt
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Testing
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nsh>
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Configurations
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==============
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@ -56,6 +56,10 @@ ifeq ($(CONFIG_DAC7571),y)
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CSRCS += stm32_dac7571.c
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endif
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ifeq ($(CONFIG_MTD_AT45DB),y)
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CSRCS += stm32_at45db.c
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endif
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ifeq ($(CONFIG_SENSORS_QENCODER),y)
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CSRCS += stm32_qencoder.c
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endif
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@ -54,6 +54,7 @@
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#define HAVE_PROC 1
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#define HAVE_RTC_DRIVER 1
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#define HAVE_AT45DB 1
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#if !defined(CONFIG_FS_PROCFS)
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# undef HAVE_PROC
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@ -70,6 +71,12 @@
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# undef HAVE_RTC_DRIVER
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#endif
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/* Check if we can support AT45DB FLASH file system */
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#if !defined(CONFIG_STM32L4_SPI1) || !defined(CONFIG_MTD_AT45DB)
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# undef HAVE_AT45DB
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#endif
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/* LED. User LD3: the green LED is a user LED connected to Arduino signal D13
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* corresponding to MCU I/O PB3 (pin 26)
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* target.
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@ -83,6 +90,14 @@
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GPIO_SPEED_50MHz)
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#define LED_DRIVER_PATH "/dev/userleds"
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/* SPI chip selects */
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#ifdef CONFIG_MTD_AT45DB
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# define AT45DB_SPI1_CS \
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(GPIO_PORTA | GPIO_PIN11 | GPIO_OUTPUT_SET | GPIO_OUTPUT | GPIO_PUSHPULL | \
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GPIO_SPEED_50MHz)
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#endif
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/************************************************************************************
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* Public Data
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************************************************************************************/
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@ -156,6 +171,18 @@ int stm32l4_adc_setup(void);
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int stm32_dac7571initialize(FAR const char *devpath);
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#endif
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/************************************************************************************
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* Name: stm32_at45dbinitialize
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*
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* Description:
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* Initialize and register the AT45DB driver.
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*
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************************************************************************************/
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#ifdef CONFIG_MTD_AT45DB
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int stm32_at45dbinitialize(int minor);
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#endif
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/****************************************************************************
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* Name: board_timer_driver_initialize
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*
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@ -170,6 +170,18 @@ int board_app_initialize(uintptr_t arg)
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}
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#endif
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#ifdef HAVE_AT45DB
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/* Initialize and register the ATDB FLASH file system. */
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ret = stm32_at45dbinitialize(0);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to initialize AT45DB minor %d: %d\n",
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0, ret);
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return ret;
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}
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#endif
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#ifdef CONFIG_PWM
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/* Initialize PWM and register the PWM device. */
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@ -82,20 +82,39 @@ struct spi_dev_s *g_spi2;
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void stm32l4_spiinitialize(void)
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{
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#ifdef CONFIG_STM32L4_SPI1
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/* Configure SPI1-based devices */
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g_spi1 = stm32l4_spibus_initialize(1);
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spiinfo("SPI1 initialized\n");
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#endif
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#ifdef CONFIG_STM32L4_SPI2
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/* Configure SPI-based devices */
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g_spi2 = stm32l4_spibus_initialize(2);
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if (!g_spi1)
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{
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spierr("ERROR: FAILED to initialize SPI port 1\n");
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}
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else
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{
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spiinfo("INFO: SPI port 1 initialized\n");
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}
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/* Setup CS, EN & IRQ line IOs */
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spiinfo("SPI2 initialized\n");
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#ifdef CONFIG_MTD_AT45DB
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(void)stm32l4_configgpio(AT45DB_SPI1_CS); /* FLASH chip select */
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#endif
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#endif
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#ifdef CONFIG_STM32L4_SPI2
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/* Configure SPI2-based devices */
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g_spi2 = stm32l4_spibus_initialize(2);
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if (!g_spi2)
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{
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spierr("ERROR: FAILED to initialize SPI port 2\n");
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}
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else
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{
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spiinfo("INFO: SPI port 2 initialized\n");
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}
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/* Setup CS, EN & IRQ line IOs */
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#endif
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}
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@ -129,6 +148,12 @@ void stm32l4_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected
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{
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spiinfo("devid: %08X CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
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#ifdef CONFIG_MTD_AT45DB
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if (devid == SPIDEV_FLASH(0))
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{
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stm32l4_gpiowrite(AT45DB_SPI1_CS, !selected);
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}
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#endif
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}
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uint8_t stm32l4_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
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