![]() G) In order to generate the Stop/Restart condition, software must set the STOP/START bitĪfter reading the second last data byte (after the second last RxNE event) Second last data byte (after second last RxNE event) Let’s see the detail about the steps /**** STEPS FOLLOWED ************Ī) Write the slave Address, and wait for the ADDR bit (bit 1 in SR1) to be setī) the Acknowledge disable is made during EV6 (before ADDR flag is cleared) and the STOP condition generation is made after EV6Ĭ) Wait for the RXNE (Receive Buffer not Empty) bit to setī) Clear the ADDR bit by reading the SR1 and SR2 RegistersĬ) Wait for the RXNE (Receive buffer not empty) bit to setĮ) Generate the Acknowlegment by settint the ACK (bit 10 in SR1)į) To generate the nonacknowledge pulse after the last received data byte, the ACK bit must be cleared just after reading the For instance, on the nRF52840, there is a single 32MHz SPI peripheral, and multiple 8MHz peripherals. ![]() STM32F103VB6 has an ARM Cortex M3 chip and has the following resources: 128 kB flash memory and 20 kB SRAM memory 80 I/O ports 2 12-bit ADC 7 DMA channel 7 timers, 2 I2C interfaces, 3 USARTs, 2 SPIs, USB 2. It is used to read the data from the device. import busio from board import i2c busio. The I2C Controller Write block writes data to an I2C peripheral device that is connected to the board. In this tutorial, we will be using a development board based on STM32F103VB6 chip. Note: We need to enable the I2C2 peripheral in the CubeMX view for code generation to include the I2C drivers as we do for the ADC. Leave the configuration as default, as the X-NUCLEO-SRC1M1 BSP will reconfigure it. 6- Enable I2C2 address match/error interrupts. 4- Configure I2C2 functional parameters. 2- Enable the I2C2 peripheral clock and I2C2 clock source. The STM32 Nucleo-64 boards, based on the MB1360 reference board (NUCLEO-G070RB, NUCLEO-G071RB, and NUCLEO-G0B1RE order codes) provide an affordable and flexible way for users to try out new concepts and build prototypes with the STM32 microcontroller, which provide various combinations of performance, power consumption, and features.ARDUINO Uno. note This function is used to : -1- Enables GPIO clock and configures the I2C2 pins. I2C_Read is probably the most complicated part. In the Connectivity section, enable I2C2 peripheral, in I2C mode. brief This function configures I2C2 in Slave mode.
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