candleLightFD
Overview
The candleLight FD is an open-hardware USB to CAN FD adapter board available from Linux Automation GmBH. Find more information about the board at the Linux Automation website.
Hardware
The candleLight FD board is equipped with a STM32G0B1CBT6 microcontroller and features an USB-C connector, a DB-9M connector for the CAN bus, and two user LEDs. Schematics and component placement drawings are available in the candleLight FD GitHub repository.
Supported Features
The candlelightfd 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.
candlelightfd/stm32g0b1xx target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M0+ CPU1 |
|
ADC |
on-chip |
STM32 ADC1 |
|
CAN |
on-chip |
||
Clock control |
on-chip |
STM32F0/G0 RCC (Reset and Clock controller)1 |
|
on-chip |
STM32 HSE Clock1 |
||
on-chip |
STM32G0 HSI Clock1 |
||
on-chip |
STM32 LSE Clock1 |
||
on-chip |
Generic fixed-rate clock provider1 |
||
on-chip |
STM32G0 main PLL1 |
||
on-chip |
STM32 HSI48 Clock1 |
||
Counter |
on-chip |
STM32 counters8 |
|
DAC |
on-chip |
STM32 family DAC1 |
|
DMA |
on-chip |
STM32 DMA controller (V2)2 |
|
on-chip |
STM32 DMAMUX controller1 |
||
Flash controller |
on-chip |
STM32 Family flash controller1 |
|
GPIO & Headers |
on-chip |
STM32 GPIO Controller6 |
|
I2C |
on-chip |
STM32 I2C V2 controller3 |
|
Interrupt controller |
on-chip |
ARMv6-M NVIC (Nested Vectored Interrupt Controller) controller1 |
|
on-chip |
STM32G0 External Interrupt Controller1 |
||
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
Memory controller |
on-chip |
STM32 Battery Backed RAM1 |
|
MTD |
on-chip |
STM32 flash memory1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
PHY |
on-chip |
This binding is to be used by all the usb transceivers which are built-in with USB IP1 |
|
on-board |
Simple GPIO controlled CAN transceiver1 |
||
Pin control |
on-chip |
STM32 Pin controller1 |
|
PWM |
on-chip |
STM32 PWM8 |
|
Reset controller |
on-chip |
STM32 Reset and Clock Control (RCC) Controller1 |
|
RTC |
on-chip |
STM32 RTC1 |
|
Sensors |
on-chip |
STM32 family TEMP node for production calibrated sensors with two calibration temperatures1 |
|
on-chip |
STM32 VREF+1 |
||
on-chip |
STM32 VBAT1 |
||
Serial controller |
on-chip |
STM32 USART6 |
|
on-chip |
STM32 LPUART2 |
||
SMbus |
on-chip |
STM32 SMBus controller3 |
|
SPI |
on-chip |
STM32 SPI controller with embedded Rx and Tx FIFOs3 |
|
SRAM |
on-chip |
Generic on-chip SRAM description1 |
|
USB Type-C Port Controller |
on-chip |
STM32 USB Type-C / Power Delivery2 |
|
Timer |
on-chip |
ARMv6-M System Tick1 |
|
on-chip |
STM32 low-power timer (LPTIM)1 |
||
on-chip |
STM32 timers10 |
||
USB |
on-chip |
STM32 USB controller1 |
|
Watchdog |
on-chip |
STM32 watchdog1 |
|
on-chip |
STM32 system window watchdog1 |
candlelightfd/stm32g0b1xx/dual target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M0+ CPU1 |
|
ADC |
on-chip |
STM32 ADC1 |
|
CAN |
on-chip |
STM32 FDCAN CAN FD controller2 |
|
Clock control |
on-chip |
STM32F0/G0 RCC (Reset and Clock controller)1 |
|
on-chip |
STM32 HSE Clock1 |
||
on-chip |
STM32G0 HSI Clock1 |
||
on-chip |
STM32 LSE Clock1 |
||
on-chip |
Generic fixed-rate clock provider1 |
||
on-chip |
STM32G0 main PLL1 |
||
on-chip |
STM32 HSI48 Clock1 |
||
Counter |
on-chip |
STM32 counters8 |
|
DAC |
on-chip |
STM32 family DAC1 |
|
DMA |
on-chip |
STM32 DMA controller (V2)2 |
|
on-chip |
STM32 DMAMUX controller1 |
||
Flash controller |
on-chip |
STM32 Family flash controller1 |
|
GPIO & Headers |
on-chip |
STM32 GPIO Controller6 |
|
I2C |
on-chip |
STM32 I2C V2 controller3 |
|
Interrupt controller |
on-chip |
ARMv6-M NVIC (Nested Vectored Interrupt Controller) controller1 |
|
on-chip |
STM32G0 External Interrupt Controller1 |
||
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
Memory controller |
on-chip |
STM32 Battery Backed RAM1 |
|
MTD |
on-chip |
STM32 flash memory1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
PHY |
on-chip |
This binding is to be used by all the usb transceivers which are built-in with USB IP1 |
|
on-board |
Simple GPIO controlled CAN transceiver2 |
||
Pin control |
on-chip |
STM32 Pin controller1 |
|
PWM |
on-chip |
STM32 PWM8 |
|
Reset controller |
on-chip |
STM32 Reset and Clock Control (RCC) Controller1 |
|
RTC |
on-chip |
STM32 RTC1 |
|
Sensors |
on-chip |
STM32 family TEMP node for production calibrated sensors with two calibration temperatures1 |
|
on-chip |
STM32 VREF+1 |
||
on-chip |
STM32 VBAT1 |
||
Serial controller |
on-chip |
STM32 USART6 |
|
on-chip |
STM32 LPUART2 |
||
SMbus |
on-chip |
STM32 SMBus controller3 |
|
SPI |
on-chip |
STM32 SPI controller with embedded Rx and Tx FIFOs3 |
|
SRAM |
on-chip |
Generic on-chip SRAM description1 |
|
USB Type-C Port Controller |
on-chip |
STM32 USB Type-C / Power Delivery2 |
|
Timer |
on-chip |
ARMv6-M System Tick1 |
|
on-chip |
STM32 low-power timer (LPTIM)1 |
||
on-chip |
STM32 timers10 |
||
USB |
on-chip |
STM32 USB controller1 |
|
Watchdog |
on-chip |
STM32 watchdog1 |
|
on-chip |
STM32 system window watchdog1 |
System Clock
The STM32G0B1CBT6 PLL is driven by an external crystal oscillator (HSE) running at 8 MHz and configured to provide a system clock of 60 MHz. This allows generating a FDCAN1 and FDCAN2 core clock of 80 MHz.
Programming and Debugging
Build and flash applications as usual (see Building an Application and Run an Application for more details).
If flashing via USB DFU, short jumper BOOT when applying power to the candleLight FD in order to
enter the built-in DFU mode.
Variants
The candleLight FD is can be retrofitted with a second transceiver, making it a dual CAN FD device:
candlelightfd: The default variant.candlelightfd_stm32g0b1xx_dual: Variant for the dual CAN FD.
Here is an example for the Blinky application.
# From the root of the zephyr repository
west build -b candlelightfd samples/basic/blinky
west flash