Browse
STMicroelectronics Community
FAQs
Sign In
Product forums
STM32 MCUs
STM32 MCUs Products
STM32 MCUs Boards and hardware tools
STM32 MCUs Software development tools
STM32 MCUs Embedded software
STM32 MCUs TouchGFX and GUI
STM32 MCUs Motor control
STM32 MCUs Security
STM32 MCUs Wireless
STM32 MPUs
STM32 MPUs Products
STM32 MPUs Boards and hardware tools
STM32 MPUs Embedded software and solutions
STM32 MPUs Software development tools
MEMS and sensors
MEMS (sensors)
Imaging (sensors)
Automotive and Transportation
Automotive MCUs
AutoDevKit Ecosystem
GNSS positioning
Edge AI
Interface and connectivity ICs
Power management
ST25 NFC/RFID tags and readers
STM8 MCUs
Others: hardware and software
Analog and audio
Knowledge base
STM32 MCUs
STM32 MPUs
MEMS and sensors
Analog and audio
EMI filtering and signal conditioning
Interface and connectivity ICs
Power management
Quality & reliability
Academy
About
Community guidelines
Feedback forum
Community blog
Developer news
DMako
Associate
since
2018-08-01
2023-06-14
User statistics
2
Posts
0
Solutions
0
Kudos given
1
Kudos received
STMicroelectronics Community
About DMako
Options
Report User
User Activity
Posts
Replies
Busy bus after I2C reading?
2018-08-01
Hello, I try to interface with mlx90640 sensor via I2C. The MCU is STM32F401REAfter reading the bus stays busy. I use LL functions:int MLX90640_I2CRead(uint8_t slave_address, uint16_t start_address, uint16_t numb_words, uint16_t *data) { uint16_...
Re: Busy bus after I2C reading?
2018-08-01
I solved the problem:put NACK and STOP generating after reading.uint16_t MLX90640_I2CReadWord(uint8_t slave_address, uint16_t start_address) { uint16_t puff; volatile uint8_t reg_m,reg_l,dat_m,dat_l; reg_m = (uint8_t) ((start_address & 0xFF00)...
Kudos from
User
Count
Legacy member
1
View all
