21014 Module
Overview
The Holyiot [1] 21014 module is built around the Nordic Semiconductor nRF52810 [2] Arm Cortex-M4 SoC with 192 KiB of flash and 24 KiB of RAM. The module have one user button and an RGB LED.
Holyiot 21014 module
Supported Features
The holyiot_21014 board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
holyiot_21014/nrf52810 target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M4 CPU1 |
|
ADC |
on-chip |
Nordic Semiconductor nRF family SAADC node1 |
|
ARM architecture |
on-chip |
Nordic UICR (User Information Configuration Registers)1 |
|
on-chip |
Nordic nRF family BPROT (Block Protection)1 |
||
on-chip |
Nordic EGU (Event Generator Unit)2 |
||
on-chip |
Nordic nRF family SWI (Software Interrupt)4 |
||
Audio |
on-chip |
Nordic PDM (Pulse Density Modulation interface)1 |
|
Clock control |
on-chip |
Nordic nRF clock control node1 |
|
on-chip |
Nordic nRF high-frequency crystal oscillator (nRF52 series)1 |
||
Comparator |
on-chip |
Nordic nRF COMP (analog COMParator)1 |
|
Counter |
on-chip |
Nordic nRF timer node3 |
|
Cryptographic accelerator |
on-chip |
Nordic ECB (AES electronic codebook mode encryption)1 |
|
on-chip |
Nordic nRF family CCM (AES CCM mode encryption)1 |
||
Debug |
on-chip |
ARMv7 instrumentation trace macrocell1 |
|
Flash controller |
on-chip |
Nordic NVMC (Non-Volatile Memory Controller)1 |
|
GPIO & Headers |
on-chip |
NRF5 GPIOTE1 |
|
on-chip |
NRF5 GPIO1 |
||
I2C |
on-chip |
Nordic nRF family TWIM (TWI master with EasyDMA)1 |
|
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv7-M NVIC (Nested Vectored Interrupt Controller)1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
Miscellaneous |
on-chip |
Nordic FICR (Factory Information Configuration Registers)1 |
|
on-chip |
Nordic nRF family PPI (Programmable Peripheral Interconnect)1 |
||
MTD |
on-chip |
Flash node1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
Networking |
on-chip |
Nordic nRF family RADIO peripheral1 |
|
Pin control |
on-chip |
Nordic nRF family Pin Controller1 |
|
Power management |
on-chip |
Nordic nRF power control node1 |
|
PWM |
on-chip |
nRF PWM1 |
|
on-chip |
nRFx S/W PWM1 |
||
Regulator |
on-chip |
Nordic nRF5X regulator (fixed stage of the core supply)1 |
|
Retained memory |
on-chip |
Nordic GPREGRET (General Purpose Register Retention) device2 |
|
RNG |
on-chip |
Nordic nRF family RNG (Random Number Generator)1 |
|
RTC |
on-chip |
Nordic nRF RTC (Real-Time Counter)2 |
|
Sensors |
on-chip |
Nordic nRF family TEMP node1 |
|
on-chip |
Nordic nRF quadrature decoder (QDEC) node1 |
||
Serial controller |
on-chip |
Nordic nRF family UARTE (UART with EasyDMA)1 |
|
SPI |
on-chip |
Nordic nRF family SPI (SPI master)1 |
|
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
ARMv7-M System Tick1 |
|
Watchdog |
on-chip |
Nordic nRF family WDT (Watchdog Timer)1 |
Connections and IOs
Button:
P0.31RGB LED:
P0.29(red),P0.30(green),P0.28(blue)SPI0:
P0.5(SCK),P0.2(MOSI),P0.3(MISO)
Programming and Debugging
The holyiot_21014 board supports the runners and associated west commands listed below.
| flash | debug | debugserver | attach | rtt | |
|---|---|---|---|---|---|
| jlink | ✅ (default) | ✅ (default) | ✅ | ✅ | ✅ |
The board must be programmed using an external SWD probe (for example, a Segger J-Link) connected to the SWDIO, SWCLK, VDD, and GND pads.
Flashing
Follow the instructions in the Nordic nRF5x Segger J-Link page to install and configure the required software. Then build and flash applications as usual (see Building an Application and Run an Application for more details).
Here is an example for the Blinky application:
# From the root of the zephyr repository
west build -b holyiot_21014 samples/basic/blinky
west flash