TOP Contributors

  1. MIKROE (2642 codes)
  2. Alcides Ramos (347 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (112 codes)
  5. Chisanga Mumba (90 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (136217 times)
  2. FAT32 Library (69478 times)
  3. Network Ethernet Library (55705 times)
  4. USB Device Library (45989 times)
  5. Network WiFi Library (41638 times)
  6. FT800 Library (40779 times)
  7. GSM click (28788 times)
  8. PID Library (26327 times)
  9. mikroSDK (26051 times)
  10. microSD click (25139 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

I2C MUX click

Rating:

5

Author: MIKROE

Last Updated: 2020-03-27

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: I2C

Downloaded: 2214 times

Not followed.

License: MIT license  

I2C MUX Click is an quad bidirectional translating I2C and SMBus switch with reset function, intended for applications with I2C slave address conflicts (multiple, identical temp sensors). It features a quad bidirectional translating switch controlled via the I2C bus, labeled as TCA9546A from Texas Instruments.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "I2C MUX click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "I2C MUX click" changes.

Do you want to report abuse regarding "I2C MUX click".

  • mikroSDK Library 2.0.0.0
  • Comments (0)
DOWNLOAD LINK RELATED COMPILER CONTAINS
mikroBasic PRO for ARM
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroBasic PRO for AVR
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroBasic PRO for dsPIC30/33 & PIC24
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroBasic PRO for FT90x
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroBasic PRO for PIC
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroBasic PRO for PIC32
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroC PRO for ARM
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroC PRO for AVR
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroC PRO for dsPIC30/33 & PIC24
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroC PRO for FT90x
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroC PRO for PIC
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroC PRO for PIC32
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroPascal PRO for ARM
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroPascal PRO for AVR
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroPascal PRO for dsPIC30/33 & PIC24
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroPascal PRO for FT90x
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroPascal PRO for PIC
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc
mikroPascal PRO for PIC32
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc

mikroSDK Library Blog

I2C MUX Click

I2C MUX Click

Native view of the I2C MUX Click board.

View full image
I2C MUX Click

I2C MUX Click

Front and back view of the I2C MUX Click board.

View full image

Library Description

The library covers all the necessary functions to control I2C MUX click board.

Key functions:

  • void i2cmux_hw_reset ( void ) - Hardware reset function.
  • void i2cmux_set_channel ( uint8_t channel, uint8_t ch_slave_address ) - Set channel function.
  • void i2cmux_generic_read ( uint8_t reg, uint8_t *p_rx_data, uint8_t n_bytes ) - Generic read data function.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes I2C, set RST pin as output and start to write log.
  • Application Initialization - Initialization driver enables - I2C, executes call hardware reset, also write log.
  • Application Task - (code snippet) This is an example that demonstrates the use of the I2C MUX Click board. In this example, we read "Who am I" register of the connected click boards to the UART MUX click. Channel 0 : 6DOF IMU 9 click [ slave address: 0x69; reg: 0x75; id val.: 0xA9 ], Channel 1 : RTC 10 click [ slave address: 0x68; reg: 0x0F; id val.: 0x88 ], Channel 2 : Altintude click [ slave address: 0x60; reg: 0x0C; id val.: 0xC4 ], Channel 3 : Temp & Hum click [ slave address: 0x5F; reg: 0x0F; id val.: 0xBC ]. All data logs write on USB UART changes every 2 sec.
void application_task ( )
{
    // SET CHANNEL 0: 6DOF IMU 9 click
    i2cmux_set_channel( I2CMUX_CMD_SET_CH_0, 0x69 );
    Delay_ms( 100 );
    
    i2cmux_generic_read( 0x75, &rx_data, 1 );
    mikrobus_logWrite( " CH-0 : ID = 0x", _LOG_TEXT );
    display_log( );

    // SET CHANNEL 1: RTC 10 click
    i2cmux_set_channel( I2CMUX_CMD_SET_CH_1, 0x68 );
    Delay_ms( 100 );
    
    i2cmux_generic_read( 0x0F, &rx_data, 1 );
    mikrobus_logWrite( " CH-1 : ST = 0x", _LOG_TEXT );
    display_log( );
    
    // SET CHANNEL 2: Altitude click
    i2cmux_set_channel( I2CMUX_CMD_SET_CH_2, 0x60 );
    Delay_ms( 100 );
    
    i2cmux_generic_read( 0x0C, &rx_data, 1 );
    mikrobus_logWrite( " CH-2 : ID = 0x", _LOG_TEXT );
    display_log( );
    
    // SET CHANNEL 3: Temp & Hum click
    i2cmux_set_channel( I2CMUX_CMD_SET_CH_3, 0x5F );
    Delay_ms( 100 );
    
    i2cmux_generic_read( 0x0F, &rx_data, 1 );
    mikrobus_logWrite( " CH-3 : ID = 0x", _LOG_TEXT );
    display_log( );
    
    mikrobus_logWrite( "------------------", _LOG_LINE );
    Delay_ms( 2000 );
}


  • void display_log ( void ) - Display log function.

Other mikroE Libraries used in the example:

  • I2C
  • UART
  • Conversions

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

ALSO FROM THIS AUTHOR

ECG 2 click

0

Track the patterns of your beating heart with ECG 2 click. ECG 2 click contains ADS1194 16-bit delta-sigma analog-to-digital converters from Texas Instruments, a built-in programmable gain amplifier (PGA), an internal reference, and an onboard oscillator.

[Learn More]

Cap Extend click

0

Cap Extend click is a mikroBUS add-on board with a SEMTECH SX8633 low power, capacitive button touch controller. It has 12 pins for connecting capacitive inputs (either touch-buttons or proximity sensors).

[Learn More]

VCP Monitor 3 click

5

VCP Monitor 3 Click is a high precision Voltage, Current and Power measurement Click board with an input capable of taking up to 15V. It features the LTC2947, from Analog Devices, a high precision power and energy monitor with an internal sense resistor supporting up to ±30A.

[Learn More]