NXP SC18IS604-EVB

1 1 5 4 9 1 (RESET)

The NXP [9] SC18IS604-EVB [10] is an evaluation kit for the SC18IS604 [16] chip, an SPI to I2C bus bridge with an integrated GPIO controller. Apart from the bridge it features:

• 5 LED connected to the GPIO pins

• 1 PCA9533 [14], an 4-bit PWM controller connected to the outgoing I2C bus which controls:

  • 4 additional dimmable LEDs

• 1 24LC02B [18] 256×8-bit EEPROM, also connected to the outgoing I2C bus

Note

There is currently no device driver support for the PCA9533 LED dimmer, either in Zephyr or in Bridle. Therefore, this shield will not set up the 4-bit PWM controller; the additional dimmable LEDs cannot be used by application code.

Design Data

• SC18IS604-EVB User Manual [11]

• SC18IS604-EVB Design Files [12]

• SC18IS604-EVB Schematic [13]

Data Sheets

• SC18IS604 [16]

• SC18IS604 Datasheet [17]

• PCA9533 [14]

• PCA9533 Datasheet [15]

• 24LC02B [18]

• 24AA02/24LC02B/24FC02 Datasheet Rev. N (2021/08) [19]

• 24AA02/24LC02B/24FC02 Datasheet Rev. M (2021/03) [20]

• 24AA02/24LC02B/24FC02 Datasheet Rev. L (2019/05) [21]

Utilization

The shield abstraction of these breakout boards is deliberately kept small. It is purely for evaluating the necessary drivers and Devicetree bindings on known integration platforms.

Since the shield does not use a standard plug-on design, it must be manually wired to the correct signals on the host board. This wiring is represented by an additional shield, depending on the signal routing. This shields can be used with any development board or shield that provides a Devicetree node with the nxp,sc18is604-evb-hif-header property in the compatibility. That is needed for GPIO mapping of the reset and interrupt line. Users can rely on the NXP SC18IS604-EVB Interconnection Shield or create their own interconnection shields with the necessary mappings in them.

Programming

If the host board has an Arduino UNO R3 connector available, its signals can be used to connect the shield. The NXP SC18IS604-EVB Interconnection Shield contains already the required signal definitions for this configuration. To use this (or another) connector shield, include it in the shield list for your build:

west build -b <your_board> --shield "x_nxp_sc18is604_evb;nxp_sc18is604_evb" <your-application>

Hello Shell on Nucleo F746ZG

Set --shield x_nxp_sc18is604_evb;nxp_sc18is604_evb when you invoke west build or -DSHIELD=x_nxp_sc18is604_evb;nxp_sc18is604_evb for cmake. For example:

west build -b nucleo_f746zg -p --shield "x_nxp_sc18is604_evb nxp_sc18is604_evb" -d build/nxp_sc18is604_evb bridle/samples/helloshell
west flash -d build/nxp_sc18is604_evb

boot logging output

[00:00:00.005,000] <inf> mfd_sc18is604: sc18is604@0: found "SC18IS604 1.0.3"
*** Booting Zephyr OS build v4.3.0… ***

Simple test execution on target

(text in bold is a command input)

BasicsLEDGPIOI2CEEPROM

uart:~$ hello -h
hello - say hello
uart:~$ hello
Hello from shell.

uart:~$ hwinfo devid
Length: 8
ID: 0x8c998be1de969148

uart:~$ kernel version
Zephyr version 4.3.0

uart:~$ bridle version
Bridle version 4.3.0

uart:~$ bridle version long
Bridle version 4.3.0.0

uart:~$ bridle info
Zephyr: 4.3.0
Bridle: 4.3.0

uart:~$ device list
devices:
- rcc@40023800 (READY)
  DT node labels: rcc
- reset-controller (READY)
  DT node labels: rctl
- interrupt-controller@40013c00 (READY)
  DT node labels: exti
- gpio@40022800 (READY)
  DT node labels: gpiok
- gpio@40022400 (READY)
  DT node labels: gpioj
- gpio@40022000 (READY)
  DT node labels: gpioi
- gpio@40021C00 (READY)
  DT node labels: gpioh
- gpio@40021800 (READY)
  DT node labels: gpiog
- gpio@40021400 (READY)
  DT node labels: gpiof
- gpio@40021000 (READY)
  DT node labels: gpioe
- gpio@40020C00 (READY)
  DT node labels: gpiod
- gpio@40020800 (READY)
  DT node labels: gpioc
- gpio@40020400 (READY)
  DT node labels: gpiob
- gpio@40020000 (READY)
  DT node labels: gpioa
- serial@40011400 (READY)
  DT node labels: usart6 arduino_serial
- serial@40004800 (READY)
  DT node labels: usart3
- adc@40012000 (READY)
  DT node labels: adc1
- dac@40007400 (READY)
  DT node labels: dac1
- flash-controller@40023c00 (READY)
  DT node labels: flash
- i2c@40005800 (READY)
  DT node labels: i2c2
- i2c@40005400 (READY)
  DT node labels: i2c1 arduino_i2c
- pwm (READY)
  DT node labels: pwm1
- spi@40013000 (READY)
  DT node labels: spi1 arduino_spi nxp_sc18is604_evb_spi
- sc18is604@0 (READY)
  DT node labels: sc18is604_0
- sc18is604-0-i2c (READY)
  DT node labels: sc18is604_0_i2c nxp_sc18is604_evb_i2c
- sc18is604-0-eeprom@50 (READY)
  DT node labels: nxp_sc18is604_evb_eeprom
- sc18is604-0-gpio (READY)
  DT node labels: sc18is604_0_gpio
- memory@40024000 (READY)
  DT node labels: backup_sram
- sc18is604-0-gpio-leds (READY)
  DT node labels: nxp_sc18is604_evb_gpio_leds
- leds (READY)
  DT node labels: leds
- dietemp (READY)
  DT node labels: die_temp
- vbat (READY)
  DT node labels: vbat
- vref (READY)
  DT node labels: vref

uart:~$ history
[  0] history
[  1] device list
[  2] bridle info
[  3] bridle version long
[  4] bridle version
[  5] kernel version
[  6] hwinfo devid
[  7] hello
[  8] hello -h

More Samples and Tests

On-Shield LED Blinky by GPIO

See also Zephyr sample: Blinky.

west build -b nucleo_f746zg -p --shield "x_nxp_sc18is604_evb nxp_sc18is604_evb" -d build/nxp_sc18is604_evb zephyr/samples/basic/blinky
west flash -d build/nxp_sc18is604_evb

On-Shield LED Blinky by PWM

Do not use!

Not yet, because of missing PCA9533 device driver support.

See also Zephyr sample: PWM Blinky.

west build -b nucleo_f746zg -p --shield "x_nxp_sc18is604_evb nxp_sc18is604_evb" -d build/nxp_sc18is604_evb zephyr/samples/basic/blinky_pwm
west flash -d build/nxp_sc18is604_evb

On-Shield LED Fade by PWM

Do not use!

Not yet, because of missing PCA9533 device driver support.

See also Zephyr sample: Fade LED.

west build -b nucleo_f746zg -p --shield "x_nxp_sc18is604_evb nxp_sc18is604_evb" -d build/nxp_sc18is604_evb zephyr/samples/basic/fade_led
west flash -d build/nxp_sc18is604_evb

On-Shield EEPROM Read/Write

See also Zephyr sample: EEPROM.

west build -b nucleo_f746zg -p --shield "x_nxp_sc18is604_evb nxp_sc18is604_evb" -d build/nxp_sc18is604_evb zephyr/samples/drivers/eeprom
west flash -d build/nxp_sc18is604_evb

References

API

SC18IM604 MFD Interface

SC18IM604 GPIO Controller

SC18IM604 I2C Controller

Links

[1]

https://zephyrproject.org/

[2]

https://www.doxygen.org/

[3] (1,2,3,4,5,6,7)

https://www.python.org/downloads

[4]

https://pypi.org/project/Pillow

[5] (1,2)

https://pypi.org/project/Sphinx

[6]

https://www.sphinx-doc.org/en/master/usage/theming.html

[7] (1,2)

https://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html

[8]

https://sitemaps.org/protocol.html

[9]

https://www.nxp.com/

[10]

https://www.nxp.com/products:SC18IS604-EVB

[11]

https://www.nxp.com/docs/en/user-manual/UM11665.pdf

[12]

https://www.nxp.com/webapp/Download?colCode=DESIGN-FILES-SC18IS604-EVB

[13]

https://www.nxp.com/webapp/Download?colCode=SPF-50629

[14] (1,2,3)

https://www.nxp.com/products:PCA9533

[15] (1,2)

https://www.nxp.com/docs/en/data-sheet/PCA9533.pdf

[16] (1,2)

https://www.nxp.com/products:SC18IS604

[17]

https://www.nxp.com/docs/en/data-sheet/SC18IS604.pdf

[18] (1,2,3)

https://www.microchip.com/product/24LC02B

[19]

https://ww1.microchip.com/downloads/en/DeviceDoc/24AA02-24LC02B-24FC02-2K-I2C-Serial-EEPROM-20001709N.pdf

[20]

https://ww1.microchip.com/downloads/en/DeviceDoc/24AA02-24LC02B-24FC02-2K-I2C-Serial-EEPROM-20001709M.pdf

[21]

https://ww1.microchip.com/downloads/en/DeviceDoc/24AA02-24LC02B-24FC02-Data-Sheet-20001709L.pdf