Hardware requirements
Micro USB cable
RD-RW61X-BGA board
Personal Computer
Board settings
Connect JP30 1-2, JP9, JP19, JP23, JP51. Disconnect JP47 and connect JP47-1 to GND(J8-6). Extra rework is needed for the slave board besides the above connection, remove R97, R415, R594 and install R409, R49, R13.
Connect SPI master on board to SPI slave on other board.
Master_board(SPI0) Slave_board(SPI0)
Pin Name Board Location Pin Name Board Location
MISO J5 pin 5 MISO J5 pin 5
MOSI J5 pin 4 MOSI J5 pin 4
SCK J5 pin 6 SCK J5 pin 6
PCS0 J5 pin 3 PCS0 J5 pin 3
GND J5 pin 7 GND J5 pin 7
Prepare the Demo
Connect a micro USB cable between the PC host and the MCU-Link USB port (J7) on the board
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the demo runs successfully, the log would be seen on the terminal like:
SPI CMSIS driver board to board dma example.
This example use one board as master and another as slave.
Master and slave uses DMA way. Slave should start first.
Please make sure you make the correct line connection. Basically, the connection is:
SPI_master -- SPI_slave
CLK -- CLK
PCS -- PCS
MOSI -- MOSI
MISO -- MISO
GND -- GND
Master transmit:
0 1 2 3 4 5 6 7 8 9 A B C D E F
10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F
20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F
30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F
SPI transfer all data matched!
Master received:
0 1 2 3 4 5 6 7 8 9 A B C D E F
10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F
20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F
30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F