Programming And Debug Interface; Uart Interface; Serial Flash; Table 1 Uart Interface Jumpers - Murata SN8000 EVK User Manual


Reset button

Application button

Application LED

Serial flash (8M bits) and interface connectors

UART interface connectors

Ribbon connector to select I/O pins of the SN8000 module

Pads for header to access select I/O pins of the STM32F

2.2.1 Programming and debug interface

The SN8000 EVB provides a mechanism for programming and debugging applications on the STM32F
through the USB-JTAG interface. The instructions for installing the driver for the USB-JTAG interface are
described in Section 2.4.

2.2.2 UART interface

The EVB also provides a serial interface to the STM32F processor through the USB-UART interface. The
instructions for installing the driver for that interface are described in Section 2.4. Connectors CN4-CN7
may be removed to disconnect the USB-UART interface. The ordering of the jumpers in the illustration
below listed from top to bottom is CN4, 5, 6, 7 and 8. The left column of the pins is connected to the USB-
UART port, and the right column is connected to STM32F. Jumper on CN8 should be removed.
Connector
CN4
CN5
CN6
CN7

2.2.3 Serial flash

The EVB has an 8MBits Winbond W25Q80BL ([4]) serial flash that may be used for over-the-air FW
upgrade by the WICED SDK (Section 2.4). The jumpers on connectors CN10-CN12 may be removed to
disconnect the serial flash from the module so that those pins may be connected to the customer platform
for other purposes. The ordering of the jumpers in the illustration below listed from left to right is CN10,
11, 13 and 12. The bottom row of the pins is connected to the serial flash, and the top row is connected to
STM32F.
Connector
CN10
STM32F pins Signal
PA12 RTS/
PA11 CTS/
PA9 TXD
PA10 RXD

Table 1 UART interface jumpers

Serial flash
STM32F pins Flash Signal
PA4 CS/
Page 9 of 30
SN8000 EVK User Guide
Remark
Jumper on to use USB-UART interface
Jumper on to use USB-UART interface
Jumper on to use USB-UART interface
Jumper on to use USB-UART interface
Serial flash interface
(CN10, 11, 13, 12)
Remark
Jumper on to use serial flash