
fpga - What is the I2C ACK, and how do I detect it? - Electrical ...
An I2C master, however, is free to change the state on SDA any time it is asserting SCK. To read the state of a remote device's ACK bit, the master must release SDA before the rising clock …
NACK and ACK responses on I2c bus - Stack Overflow
2016年5月5日 · My recent project requires the use of i2c communication using a single master with multiple slaves. I know that with each data byte (actual data) sent by master,the slave …
I2C device intermittently fails to ACK - Electrical Engineering Stack ...
I2C - Where's the ACK. 2. I2C Issue at 400KHz. 2. I2C slave not ACK'ing quickly enough. 1. Debugging I2C ...
The I2C communication is not giving me a ACK bit
2016年5月19日 · Also timing shouldn't be an issue. If the device supports i2c fast mode it must respond in 2.5 microseconds with an ack. Also if it needed to it could block the master by …
microcontroller - MSP430 I2C communication no ACK - Electrical ...
2023年6月25日 · I'm trying to get I2C working with the MSP4302231 and had and still have some problems. The main problem is that I don't get an ACK from the slave to which I send its …
Is I2C ack bit supposed to be one when it's reading data? Why is …
2023年11月9日 · \$\begingroup\$ The ACK bit being high at the end of your data read is perfectly normal. It's the I2C Master (your FPGA) telling the Slave that this is the end of the read …
I2C problem at ACK bit - Electrical Engineering Stack Exchange
2018年4月17日 · I2C is concerned with the state of SDA before/on the falling clock edge, which is where that data is latched. SDA should not change state when SCL is high as this denotes …
I2C ACK bit glitch - Electrical Engineering Stack Exchange
I'm using an SMT32F030R8 to communicate via I2C with some other devices, and the problem is that I'm capturing some glitch in the I2C ACK bit. As shown in the picture, at the end of one of …
microcontroller - No ACK from slave device - Electrical Engineering ...
2017年6月16日 · Slave is being correctly addressed, but is not in the correct state to "Ack" right now - this is device specific (e.g. there can be timing constraints etc. etc.). Check the …
I2C STM32F4 (slave) no acknowledge bit responded
2020年7月30日 · I'm currently setting um a I2C bus with a FT2232H as master and a STM32F407VGT6 (Discovery-Board) as a slave. I was able to send the slave address …