FAQs
LCHAN.41
Associate II
since ‎2023-03-28
‎2024-04-23

User statistics

  • 10 Posts
  • 0 Solutions
  • 5 Kudos given
  • 0 Kudos received

User Activity

St25r3917b workerstate stuck in state 2

2023-10-30
Hello, i am developing a firmware on EFR32 platform, most problem were solve and the st25r3917b could communicate with the EFR32 via I2C.However , something weird happened when i migrate code from a testboard to a actural board.1. The code works perf...

ST25R Antenna Matching tool with specific antenna

2023-07-06
Hey, i am developing a RFID reader for ISO-14443-4 card with st25r3917b. The firmware is done and works with my custom MCU board connected with external RF board of STEVAL-25R3916B. However , if I switching the testboard and connect with my custom RF...

About overcome indirect sunlight problem with vl6180X/V1?

2023-07-06
Hey, I am using a customize board (MCU:STM32L452CCU6) to develop a gate checker with vl6180/V1 and cover glass with IR filter. Implemented a default value and setting ,the sensor and code works fine indoor. But in the outdoor condition under the sunl...

Which API should vl6180 use?

2023-06-26
HI, i am studying how to controll vl6180 with a custom board which MCU is STM32L452CCU6. At the beginning , i tried to avoid implementing the api by changing register directly using i2c, however,0x018 is set to 0x2 or 0x0 both did not generate the ra...

Several question of implemeting st25r3917 to read ISO144443-4 card

2023-03-28
Hi there,I am a beginner of using customize board to build a project for reading a ISO 144443-4 card .Due to the environment require a higher power output of the reader, therefore i chose ST25R3917 as my rfid SOC. But during the firmware developing ...
Top