I2C project. An overview on I2C; An example of I2C slave (method 1); An example of I2C slave (method 2) You mentioned that there is no toggling, are the lines stuck logic high or low? I dont know what else I am doing wrong. Restart with the wrong slave device address.This will help you to follow the programming sequence as well.1) Please note to refer to ISR interrupt(4) instead of interrupt(2) to detect the end of the last byte, and then pre-last bytes interrupts can be monitored on interrupt(2) as usual.We would recommend following test cases 1, 2 and 3 but not 4.Because this byte has a stop bit, it be will considered the last byte. If you look towards the bottom of this website here we have out pmods listed with what communication they use.
Whereas the psiic driver is intended to be used with the Zynq-7000 or Zynq-UltraScale's built-in IIC controller's. Mario. All set now.Can you describe what you see on the SDA and SCL lines? I would suggest to look at the Pmod CPMS2 as an example if using I2C with the zybo being the master.Here DS756 June 22, 2011 www.xilinx.com 3 Product Specification LogiCORE IP AXI IIC Bus Interface (v1.01a) Multi-Master Operation The AXI IIC only participates in multi-master arbitration when the bus is initially free and the attempt is made.
Keep a copy of the following steps and you can then edit it if you are omitting or appending any steps in your own design. Keep a copy of the following steps and you can then edit it if you are omitting or appending any steps in your own design.First, a write access is necessary to set the slave device address, then a repeated start follows with the read accesses:As per the IIC protocol we do not recommend having a byte with both a start and stop bit together in it.It is easy to understand the AXI IIC simulation by using pseudo steps like the following, and comparing them against the behavior you are seeing.b) If the last byte is read, then exit; otherwise, continue checking RX_FIFO not empty.Alternatively just fill in whichever are applicable for your test case.The data is at slave address 0x _ _. Placed the data at slave device address 0x6C with one data byte:The example cases are explained below:Below are some recommended example programming sequences as per the AXI IIC product guide (PG090).Please use the provided with the AXI IIC IP which works and has been tested in the Vivado environment.Place the data at slave device address 0x__:A modified simulation testbench is attached to this Answer Record.Placed the data at the slave device address 0x6C with two data bytes:b) If the last byte is read, exit; otherwise, continue checking RX_FIFO not empty.Placed the data at slave device address 0x6C with two data bytes. This code: 984f13 The URL of … Hope this helps ! Solved: iic example for microblaze – Community Forums – Xilinx Forums. It is easy to understand the AXI IIC simulation by using pseudo steps like the following, and comparing them against the behavior you are seeing. (Xilinx Answer 61970) AXI IIC example configured for SCL of 100 KHz derives a lesser frequency (Xilinx Answer 46726) How to determine the frequency of SCL? When I attempt to send a couple of bytes AXI IIC Bus Interface v LogiCORE IP Product Guide (PG090) – Xilinx. I would look at our vivado library here.We have IP cores that use spi, I2c, uart and gpio. OPTION supported_peripherals = (ps7_iic psu_i2c); In summary, the iic driver is intended to be used with the AXI_IIC core, the IIC controller implemented in the programmable logic. We have found much more success that way.Whoops, sorry: one line is held low (SCL), and the other is high (SDA).I2C protocol requires an external pull-up resistor on each of SDA and SCL lines to allow the transitions from 0 logic state to 1 logic state.
Alternatively just fill in whichever are applicable for your test case. Refresh.