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stm32f4discovery: Add Modbus Slave example

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This commit is contained in:
Alan C. Assis 2021-04-04 16:11:10 -03:00 committed by Xiang Xiao
parent 15b99d1f4b
commit 87fe0e6072
2 changed files with 80 additions and 0 deletions
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65
boards/arm/stm32/stm32f4discovery/configs/modbus_slave/defconfig Normal file
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@ -0,0 +1,65 @@
#
# 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_ARCH_FPU is not set
# CONFIG_MB_TCP_ENABLED is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_CMDPARMS is not set
# CONFIG_NSH_DISABLE_MB is not set
# CONFIG_NSH_DISABLE_MH is not set
# CONFIG_NSH_DISABLE_MW is not set
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="stm32f4discovery"
CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y
CONFIG_ARCH_BUTTONS=y
CONFIG_ARCH_CHIP="stm32"
CONFIG_ARCH_CHIP_STM32=y
CONFIG_ARCH_CHIP_STM32F407VG=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LATE_INITIALIZE=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_EXAMPLES_MODBUS=y
CONFIG_EXAMPLES_MODBUS_PORT=1
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_INTELHEX_BINARY=y
CONFIG_MAX_TASKS=16
CONFIG_MM_REGIONS=2
CONFIG_MODBUS=y
CONFIG_MODBUS_SLAVE=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RAW_BINARY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_SERIAL_TERMIOS=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_STM32_JTAG_SW_ENABLE=y
CONFIG_STM32_PWR=y
CONFIG_STM32_SPI1=y
CONFIG_STM32_USART1=y
CONFIG_STM32_USART2=y
CONFIG_SYSTEM_NSH=y
CONFIG_USART1_BAUD=38400
CONFIG_USART1_PARITY=2
CONFIG_USART1_RS485=y
CONFIG_USART2_RXBUFSIZE=128
CONFIG_USART2_SERIAL_CONSOLE=y
CONFIG_USART2_TXBUFSIZE=128
CONFIG_USER_ENTRYPOINT="nsh_main"

15
boards/arm/stm32/stm32f4discovery/include/board.h
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@ -241,6 +241,21 @@
# define GPIO_CAN2_TX GPIO_CAN2_TX_1
#endif
/* USART1 */
#ifdef CONFIG_USART1_RS485
/* Lets use for RS485 on pins: PB6 and PB7 */
# define GPIO_USART1_TX GPIO_USART1_TX_2
# define GPIO_USART1_RX GPIO_USART1_RX_2
/* RS485 DIR pin: PA15 */
# define GPIO_USART1_RS485_DIR (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_50MHz |\
GPIO_OUTPUT_CLEAR | GPIO_PORTA | GPIO_PIN15)
#endif
/* USART2:
*
* The STM32F4 Discovery has no on-board serial devices, but the console is