Support for the QN9080DK base board. More...
Detailed Description
Support for the QN9080DK base board.
General Information
The QN9080DK is the developer board reference from NXP for the QN908x CPUs. The developer kit comes with two boards: a larger PCB with a QFN "module" including a QN9080DHN soldered onto it, altogether referred as the "base board"; and separately a much smaller USB dongle with another QN9080 cpu. This board module supports the "base board" only, including the definitions of the gpio, buttons and LEDs specific to this board.
This board packs a few peripherals and many GPIOs:
MMA8652FC, a 12-bit accelerometer
The board also features a dedicated programmer hardware implemented using NXP's LPC4322, with its dedicated USB port for connecting to a computer on one end and the SWD port and one UART RX/TX pair connected to the QN9080 on the other end. The LPC4322 also has a fast (50 ksps) ADC ADC122S021 connected to a current sense amplifier to monitor the QN9080 current profile directly on the board.
For more information visit NXP's product description page for the QN9080-DK where you can find the User's Guide.
Pinout
Buttons:
| Label | RIOT OS macro | MCU PIN | Function |
|---|---|---|---|
| SW1 | BTN1_PIN | PA24 | User defined |
| SW2 | BTN2_PIN | PA19 | User defined |
| SW3 | nRESET | QN9080 reset |
One RGB led, controlled by three GPIOs
| Label | RIOT OS macro | MCU PIN |
|---|---|---|
| red | LED_RED_PIN | PA31 |
| green | LED_GREEN_PIN | PA25 |
| blue | LED_BLUE_PIN | PA13 |
SPI Flash
| Name | MCU Pin |
|---|---|
| MISO | PA05 |
| MOSI | PA04 |
| SSEL | PA03 |
| SCK | PA30 |
USB
| Name | MCU Pin |
|---|---|
| D+ | PA26 |
| D- | PA27 |
I2C / MMA8652FC G-Sensor
- Note
- The jumper JP11 needs to be in place to connect the I2C sensor to the pins. This is the default when freshly unboxed.
| Name | MCU Pin |
|---|---|
| SCL | PA06 |
| SDA | PA07 |
The MMA8652 sensor has I2C address 0x1d.
Flashing the Board
The integrated programmer by default comes with an "LPC-LINK2" firmware that provides a CMSIS DAP compatible interface. The programmer can be flashed with a Segger J-Link firmware via DFU, see the LPCSCrypt User Guide for details. It seems that the J-Link firmware is indeed a bit more reliable, so if you run into issues during debugging and/or flashing, switching to the J-Link firmware is an option.
Using the Internal Programmer with Default Firmware
In the application directory, run:
OpenOCD support for the QN908x flash is experimental and available as pending patch.
Using the Internal Programmer with J-Link Firmware
In the application directory, run:
- Note
- Instead of passing
QN9080DK_JLINK=1every time, it can also be exported as environment variable.
Using an External Programmer
By setting the jumper at JP2 to EXT the internal LPC4322 debugger/programmer is disconnect and an external programmer can be connected at header P1 using a standard 10 pin 1.27 mm debug connector.
Files | |
| file | board.h |
| Board specific definitions for the QN9080DK base board. | |
| file | gpio_params.h |
| Board specific configuration of direct mapped GPIOs. | |
| file | periph_conf.h |
| Configuration of CPU peripherals for QN9080DK base board board. | |
