queued_spi_dma_b2b_transfer_slave#
Overview#
The queued_spi_dma_b2b_transfer example shows how to use QUEUEDSPI driver in dma way:
In this example, we need two boards, one board is used as QUEUEDSPI master and another board is used as QUEUEDSPI slave. The file ‘queued_spi_dma_b2b_transfer_slave.c’ includes the DSPI slave code.
QUEUEDSPI master sends/receives data to/from QUEUEDSPI slave in dma way. (QUEUEDSPI Slave uses dma way to receive/send the data)
Supported Boards#
TWR-MC56F8200
Hardware requirements
Mini USB cable
TWR-MC56F8200 board
Personal Computer
Board hardware common setting
HW reworkd(workaround):
Connect J18(the mini USB port) pin4 and pin5. Note: This is due to HW design error, correct setting should be: J18 pin4 left empty and pin5 connected GND.
Power setting:
Connect J11 pin1 and pin2 Connect J6 pin1 and J7 pin2
UART setting:
Connect J8 pin3 and pin4 Connect J9 pin3 and pin4
Onboard OSJTAG debugger setting:
Connect J20 pin1 and pin2. Leave J17 open. Note: J17 is only used(connected) when firmware update for onboard debugger OSJTAG. Connect J21 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger OSJTAG. Note: when use external debugger(connected to J14), leave all J21 pins open
Board settings
Master/Slave board connection as below:
Master Board Slave Board
INSTANCE0(QSPI0) CONNECTS TO INSTANCE1(QSPI0)
Pin Name Board Location Pin Name Board Location
SS0 J502 pin 16 SS0 J502 pin 16
MOSI J502 pin 22 MOSI J502 pin 22
MISO J502 pin 18 MISO J502 pin 18
SCK J502 pin 20 SCK J502 pin 20
GND J502 pin 6 GND J502 pin 6
Prepare the Demo
Connect USB cable between the host PC and the JM60 USB(J18) port on the target board. It setups OSJTAG and COM port in PC device manager.
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 with OSJTAG debug configuration.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
QUEUEDSPI board to board dma example -- Slave transfer.
Slave example is running...
This is QUEUEDSPI slave dma transfer completed callback.
QUEUEDSPI transfer all data matched!
Slave receive:
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 40
Slave example is running...
TWR-MC56F8400
Hardware requirements
Mini USB cable
TWR-MC56F8400 board
Personal Computer
Board hardware common setting
Power setting:
Connect J11 pin1 and pin2 Connect J6 pin1 and J7 pin2
UART setting:
Connect J8 pin3 and pin4 Connect J9 pin3 and pin4
Onboard OSJTAG debugger setting:
Connect J20 pin1 and pin2. Leave J17 open. Note: J17 is only used(connected) when firmware update for onboard debugger OSJTAG. Connect J21 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger OSJTAG. Note: when use external debugger(connected to J14), leave all J21 pins open
Board settings
Master/Slave board connection as below:
Master Board Slave Board
INSTANCE0(QSPI0) CONNECTS TO INSTANCE1(QSPI0)
Pin Name Board Location Pin Name Board Location
SS0 J502 pin 16 SS0 J502 pin 16
MOSI J502 pin 22 MOSI J502 pin 22
MISO J502 pin 18 MISO J502 pin 18
SCK J502 pin 20 SCK J502 pin 20
GND J502 pin 6 GND J502 pin 6
Prepare the Demo
Connect USB cable between the host PC and the JM60 USB(J18) port on the target board. It setups OSJTAG and COM port in PC device manager.
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 with OSJTAG debug configuration.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
QUEUEDSPI board to board dma example -- Slave transfer.
Slave example is running...
This is QUEUEDSPI slave dma transfer completed callback.
QUEUEDSPI transfer all data matched!
Slave receive:
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 40
Slave example is running...