README
======
This README discusses issues unique to NuttX configurations for the
AT32F437-MINI development board featuring the AT32F437VMT7
MCU. The AT32F437VMT7 is a 288MHz Cortex-M4 operation with 4Mbyte Flash
memory and 384kbytes.
LEDs
====
LED1 = PE2
LED2 = PE3
USART/UART
====
USART1
RX = PA10
TX = PA9
The usart1 is used for console.
./tools/configure.sh at32f437-mini/nsh
make -j16 and flash nuttx.hex,then run it will show:
NuttShell (NSH) NuttX-12.2.1
nsh>
nsh>
nsh> ps
PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK COMMAND
0 0 0 FIFO Kthread N-- Ready 0000000000000000 001016 Idle_Task
2 2 100 RR Task --- Running 0000000000000000 002016 nsh_main
nsh>
USART2/RS485
RX = PD6
TX = PD5
DIR = PD4
CAN
====
CAN1
TX = PD1
RX = PD0
CAN_CHARDRIVER: ./tools/configure.sh at32f437-mini/can_char
CAN_SOCKET: ./tools/configure.sh at32f437-mini/can_socket
USB
====
OTGFS1
D+ = PA12
D- = PA11
SDIO
====
SDIO1
CMD = PD2
CLK = PC12
D0 = PC8
D1 = PC9
D2 = PC10
D3 = PC11
ETH
RMII_REF_CLK = PA1
ETH_MDIO = PA2
RMII_CRS_DV = PA7
ETH_MDC = PC1
RMII_RXD0 = PC4
RMII_RXD1 = PC5
RMII_TX_EN = PB11
RMII_TXD0 = PB12
RMII_TXD1 = PB13
ETH_RST = PA3
The eth used lan8720a as phy
W25QXX
CLK = PB3
MISO = PB4
MOSI = PB5
CS = PD7
RTC
The board used rtc device on chip
PWM
The pwm test with tim20 chanel1 in PE2
ADC
ADC1 chanel8(PB0)
56529d2944