ardupilot/libraries/AP_HAL_ChibiOS/hwdef/HolybroGPS/hwdef-bl.dat

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# hw definition file for processing by chibios_pins.py
# MCU class and specific type
MCU STM32F4xx STM32F412Rx
FLASH_RESERVE_START_KB 0
# two sectors for bootloader, two for storage
FLASH_BOOTLOADER_LOAD_KB 64
# board ID for firmware load
APJ_BOARD_ID 1035
# setup build for a peripheral firmware
env AP_PERIPH 1
# debug on USART2
STDOUT_SERIAL SD2
STDOUT_BAUDRATE 57600
# crystal frequency
OSCILLATOR_HZ 16000000
define CH_CFG_ST_FREQUENCY 1000000
# assume 512k flash part
FLASH_SIZE_KB 512
# order of UARTs
SERIAL_ORDER USART2
# workaround missing define in headers
define RCC_AHB1RSTR_OTGHRST 0x20000000
# blue LED
PB15 LED_BOOTLOADER OUTPUT HIGH
define HAL_LED_ON 0
# USART2
PA2 USART2_TX USART2
PA3 USART2_RX USART2
# SWD debugging
PA13 JTMS-SWDIO SWD
PA14 JTCK-SWCLK SWD
define HAL_USE_SERIAL TRUE
define STM32_SERIAL_USE_USART1 FALSE
define STM32_SERIAL_USE_USART2 TRUE
define STM32_SERIAL_USE_USART3 FALSE
define HAL_NO_GPIO_IRQ
define HAL_USE_EMPTY_IO TRUE
# avoid timer and RCIN threads to save memory
define HAL_NO_TIMER_THREAD
define HAL_NO_RCIN_THREAD
define DMA_RESERVE_SIZE 0
define HAL_DISABLE_LOOP_DELAY
# enable CAN support
PA11 CAN1_RX CAN1
PA12 CAN1_TX CAN1
PB2 GPIO_CAN1_SILENT OUTPUT PUSHPULL SPEED_LOW LOW
PB12 CAN2_RX CAN2
PB13 CAN2_TX CAN2
PA4 GPIO_CAN2_SILENT OUTPUT PUSHPULL SPEED_LOW LOW
define CAN_APP_NODE_NAME "org.ardupilot.HolybroGPS"
# make bl baudrate match debug baudrate for easier debugging
define BOOTLOADER_BAUDRATE 57600
# use a smaller bootloader timeout
define HAL_BOOTLOADER_TIMEOUT 2500
# Add CS pins to ensure they are high in bootloader
PA8 ACC_CS CS