About Robin Zhou

Robin Zhou · 2019-07-19

I am using LIS3DH accemelator to acuqire gravity data. The MCU is NXP MKL16. LIS3DH's pin8 CS is set to high level to communicate with I2C protocol, and pin7 SA0 is set to connect to GND. The SCL and SDA pins are pull up with 4.7K resisttors. After ...

Robin Zhou · 2019-05-19

Hi, I encounter a problem to continuously display a physiological waveform through the subclass of CanvasWidget class developed. The dots on the line were added to an FIFO buffer in the subclass within the handleTickEvent() function of the view, the...

Robin Zhou · 2019-12-16

Hi, BMara. Here is my solution for the problem refer to https://community.st.com/s/question/0D50X0000AqBQlsSQG/why-using-canvaswidget-class-to-draw-lines-encounter-flicking-problembool CircularGraph::drawCanvasWidget(const Rect& invalidatedArea) cons...

Robin Zhou · 2019-07-22

Thanks to Andrew and Clive. The problem is solved, the hardware guys made a mistake.

Robin Zhou · 2019-07-19

I'll try it later, thanks for you advice.

Robin Zhou · 2019-07-19

Thanks for Andrew's suggestion. But after carefully check, the Slave Address and sub register address seems right. As the slave address presented in LIS3DH datasheet, with SA0 pin connected to GND, 7bits slave address is 0011000b, the SDA signal of t...

Robin Zhou · 2019-05-23

Thanks for the reply. My problem is solved.

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