AT-START-F407 User Manual
2020.11.20
12
Rev 1.20
3.6
LED indicators
Power LED1
Red indicates that the board is powered by 3.3 V
User LED2
Red, connected to the PD13 pin of AT32F407VGT7.
User LED3
Yellow, connected to the PD14 pin of AT32F407VGT7.
User LED4
Green, connected to the PD15 pin of AT32F407VGT7.
3.7
Buttons
Reset button B1
Connected to NRST to reset
AT32F407VGT7
User button B2
It is, by default, connected to the PA0 of AT32F407VGT7, and alternatively used as a wake-up
button (R19 ON, R21 OFF); Or connected to PC13 and alternatively used as TAMPER-RTC
button (R19 OFF, R21 ON)
3.8
USB device
AT-START-F407 board supports USB full-speed device communication through an USB micro-B
connector (CN1). V
BUS
can
be used as 5 V power supply of AT-START-F407 board.
3.9
Connect to Bank3 of Flash memory via SPIM interface
The SPI Flash EN25QH128A on the board is connected to the AT32F407VGT7 via SPIM interface
and used as Bank 3 of expanded Flash memory.
When using the Bank 3 of the Flash memory via SPIM interface, the JP8 one-piece jumper, as
shown in
,
should select the left SPIM side. In this case, PB1, PA8, PB10 PB11, PB6 and
PB7 are not connected to the external LQFP100 I/O extension connector. These 6 pins are marked
by adding [
*
] after the pin name of extension connector on the PCB silkscreen.
Table 2. GPIO and SPIM jumper setting
Jumper
Settings
JP8 connected to I/O
Use I/O and Ethernet MAC function (Default setting before shipping)
JP8 connected to SPIM
Use the SPIM function
Summary of Contents for AT-START-F407
Page 17: ...AT START F407 User Manual 2020 11 20 17 Rev 1 20 4 Schematic Figure 4 Schematic AT Link EZ...
Page 18: ...AT START F407 User Manual 2020 11 20 18 Rev 1 20 Figure 5 Schematic microcontroller...
Page 20: ...AT START F407 User Manual 2020 11 20 20 Rev 1 20 Figure 7 Schematic extension connectors...