Ask questions and find answers on connectivity ICs, focusing on protocols and I2C challenges on STM32 Nucleo boards and BlueNRG products.
Hello, I measure the output differential voltage of the drivers (with 100ohm termination resistor) and it is always higher than 0.4V that is referred to the datasheet. What I measure is about 0.68V. Is that normal? Thank you in advance
Good afternoon, We are evaluating the possible consequence for the LVDS transceiver RHFLVDSR2D2 in case that it is supplied with a voltage above its absolute value which is 4,8V.In particular we are asked to evaluate the case that voltage applied to ...
Hello to everyone. I am trying to see the data via I2C with the capacitive sensor (FDC2214-Q1),but I see the values I have assigned as 0 in live experiment.I'm sure about the hardware part. I would be happy if you help. /* Private define -----------...
Hi ST community,does the STUSB4500L also supports negotiation for data communication?E.g. can I use D+/D- pins of the USB-C port while PD is negotiated by the STUSB4500L?The STUSB4500 seems to support that by setting the flag USB_COMM_CAPABLE within ...
I have run into problems trying to get voice data from the MP34DT05-A PDM Microphone on the BlueNRGLP eval board. Specifically, and after spending a fair chunk of time (using the BLE_Sensor_Demo_BlueMSApp demo code as a starting point), it appears th...
Hello,I'm using a BlueNRG-2 via SPI from a main uC host. The BLE stays advertising and the main uC goes to Standby mode. When someone tries to connect to my device, main uC wakes up. Since I don't want to restart the BLE (this would reset our addres...
I'm hoping to use the STUSB4700 in a product design. The product needs to be supplied by normally by a tablet (only 5V @ 100mA required). Sometimes the product will have external power available and when it does, I want to source power to the table...
The Lis2du12 chip is malfunctioning, and the ODR of the CTRL5 register can only be written to 0x4 and 0x8. When writing to 0xa and then reading, it is 0x8, and the register status is always 0x02, and the power down bit is always 1, indicating no oper...
Hello,I am using BlueNRG-M0A and have a successful implementation working. However, I have a scenario that I'm unsure how to properly program.If I am currently paired to a Bluetooth device (i.e. a phone). The Bluetooth app crashes or the phone goes o...
Hello everyone,I'm trying to write a driver for the ILI9341 display (8 bit parallel mode, not SPI) using the ST HAL. I couldn't get the libraries I found online working, I imagine for the same reason I can't get mine to work. Obviously I have double ...