About mkim.51

mkim.51 · 2018-12-17

I am using Stm32F411RCT chip and using BMP280 pressure sensor * 2 ea and hdc1080 * 1ea. I made the code for three sensors to act as a polling.however, in order to reduce the amount of time that data is read and written, I am changing that function...

mkim.51 · 2018-12-13

I'm using STM32F411RCT chip and using I2C3 slave is BMP280 * 2ea and HDC1080The bmp280 is implemented as a function of HAL_I2C_Mem_Read.HDC1080 is implemented as a function of HAL_I2C_Master_Transmit & HAL_I2C_Master_Receivenow, I change this fun...

mkim.51 · 2018-12-13

I'm using an STM32F411 chip.and it is trying to use the DMA function of UART2 and I2C3.there are same DMA1 bus line.at that time, Is it available when both functions try to work at the same time? Does Stm32 handle itself? If so, what is the priorit...

mkim.51 · 2018-12-17

It takes 1 ms to read and write the bmp280 * 2ea and 0.2 ms to read and write the hdc1080 in while. My system period is approximately 40 ms and my algorithm for taking and turning the microphone and sensor data is approximately 30 ms.I'm working w...

mkim.51 · 2018-12-14

thank you

mkim.51 · 2018-12-13

thank you for your reply. I lacked understanding of the stream.what if I use I2C3_RX and UART4_RX DMA? at that time i use same stream.. still no problem??

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I2C DMA function... help me to make code... and working..

STM32F411 I2C DMA FUNCTION QUESTION

STM32F4 I2C DMA1 & UART DMA1 A SAME STREAM IS IT AVAILABLE?

Re: I2C DMA function... help me to make code... and working..

Re: STM32F4 I2C DMA1 & UART DMA1 A SAME STREAM IS IT AVAILABLE?

Re: STM32F4 I2C DMA1 & UART DMA1 A SAME STREAM IS IT AVAILABLE?