Afbr-S50-Rd Hardware Interfaces - Broadcom AFBR-S50 Reference Design

AFBR-S50 Time-of-Flight (ToF) Sensor Family Application Note
The following table lists the six multiplexed pins that allow the use of the three available communication interfaces (UART,
1
I2C, and SPI).
AFBR-S50-RD J1
Connector
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8

2.4 AFBR-S50-RD Hardware Interfaces

This section describes two methods of accessing the AFBR-S50-RD interface. The first method represents connecting with
an additional adapter board, and the second one is connecting by using an FTDI cable.
NOTE: The adapter board is primarily intended for communication with the FRDM-KL46Z evaluation kit. Additional
firmware needs to be uploaded to the KL46Z MCU. The data is transferred using the USB connector. Testing was
not performed for the Arduino and STM development boards.
The following table provides a brief overview of the available options.
Adapter Board
Short description Routing board with two connectors that are used to provide
Arduino/FRDM-KL46Z compatible pinout for various
development boards
Pros and Cons Pros: Multiple interfaces, programming and debugging is
possible. More robust solution.
Cons: Additional firmware required.
Debugging Available with JTAG/SWD
Interfaces UART and I2C
1. UART interface implemented in current firmware version (I2C, SPI available but not implemented).
Broadcom
Kinetis KL17Z Pin
Function
PTE16
PTE17
PTE18
PTE19
PTA2
PTA1
Option #1
UART Mode
Not Used
Not Used
Not Used
Not Used
UART TX
UART RX
FTDI cable
Offers a serial connection between the PC and the
AFBR-S50-RD reference design
Pros: Well suited for situations when additional features
are not needed (for example, programming, debugging,
I2C, and so on).
Cons: Only the UART connection is available.
Not available
UART
I2C Mode
Interface Detect
Not Used
SDA
SCL
Not Used
IRQ
Option #2
Reference Design
SPI Mode
CS
SCK
MOSI
MISO
Interface Detect
IRQ
AFBR-S50-RD-AN100
10