xilinx axi iic example

* * This code assumes a loopback hardware widget is connected to the AXI DMA * core for data packet loopback. This example consists of a Interrupt mode design which shows the usage of the Xilinx iic device and XIic driver to exercise the 10-bit Address functionality of the iic device. Contains an example on how to use the XIic driver directly. Contains an example on how to use the XIic driver directly. Restart with the wrong slave device address. This example writes/reads from the lower 256 bytes of the IIC EEPROMS. The CPU initializes the block RAM. You can refer to the below stated example applications for more details on how to use iic driver. We are trying to simulate an AXI IIC example design generated by Vivado.

The XIic driver uses the complete FIFO functionality to transmit/receive data. But i dont have any idea about that IP. Reply.

This example consists of a Interrupt mode design which shows the usage of the Xilinx iic device and XIic driver to exercise the EEPROM. Enable the AXI IIC, remove the TX_FIFO reset, and disable the general call. This example writes/reads from the lower 256 bytes of the IIC EEPROMS. dpaul24. Contains an example on how to use the XIic driver directly. I have the thing working in so far as it actually is able to send messages, but I seem to have problems getting the interrupt system to work. This example consists of a interrupt mode design to demonstrate the use of repeated start using the XIic driver. This example consists of a Interrupt mode design which shows the usage of the Xilinx iic device and XIic driver to exercise the EEPROM in a multi master mode. Write 0x1D8 to the TX_FIFO (set the start bit, the device address, write access).

Product updates, events, and resources in your inbox, Clinical Defibrillators & Automated External Defibrillators, Diagnostic & Clinical Endoscopy Processing, AR# 7087: Exemplar Leonardo Spectrum v1999.1c: ngdhelpers:312 - logical block of type GND is unexpanded, AR# 70871: Understanding AXI IIC protocol - behavioral simulation use case, Set the RX_FIFO depth to maximum by setting RX_FIFO_PIRQ = 0x _ _. This example only performs read operations(receive) from the iic temperature sensor of the platform. This example writes/reads from the lower 256 bytes of the IIC … Contains an example on how to use the XIic driver directly. * This example only performs read operations (receive) from the IIC temperature * sensor of the platform. For details, see xiic_tempsensor_example.c. A modified simulation testbench is attached to this Answer Record. This example consists of a polled mode design which shows the usage of the Xilinx iic device in dynamic mode and low-level driver to exercise the EEPROM. Write 0x___ to the TX_FIFO (set start bit for repeated start, device address 0x_ _, read access). However there are no functional issues seen using this core on board. The IIC devices that are present on the Xilinx boards donot support the Master functionality. Contains an example on how to use the XIic driver directly. For details, see xiic_low_level_eeprom_example.c. * @file xaxidma_example_sg_poll.c * * This file demonstrates how to use the xaxidma driver on the Xilinx AXI * DMA core (AXIDMA) to transfer packets in polling mode when the AXIDMA * core is configured in Scatter Gather Mode.

This example performs the basic selftest using the driver. Write 0x___ to the TX_FIFO (set start bit, device address to 0x__, read access). When I checked the schematic, both the scl_o and sda_o lines are grounded in the ip. This example consists of a Interrupt mode design which shows the usage of the Xilinx iic device and XIic driver to exercise the EEPROM in Dynamic controller mode. This example consists of a Interrupt mode design which shows the usage of the Xilinx iic device and XIic driver to exercise the EEPROM in Dynamic controller mode. The XIic driver uses the complete FIFO functionality to transmit/receive data. Contains an example on how to use the XIic driver directly. Write the wrong address 0x108 to the TX_FIFO (set the start bit, the device address, write access). This example design allocates 4K of block RAM attached to the CPU via M_AXI_GP0. Place the data at slave device address 0x__: Read Bytes from an IIC Slave Device Addressed as 0x_ _.

For details, see xiic_selftest_example.c. 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. This example only performs read operations (receive) from the iic temperature sensor of the platform. Write 0x3D8 to the TX_FIFO (set the start bit, stop bit, the device address, write access). 2) Do not have the start and stop bits together with data/address bytes as per the IIC protocol. Below are some recommended example programming sequences as per the AXI IIC product guide (PG090). Once this is set in the core, the SCL frequency should be 99.6 KHz, Clinical Defibrillators & Automated External Defibrillators, Diagnostic & Clinical Endoscopy Processing, AR# 6197: 2.1i FPGA Editor - FPGA Editor adds an incorrect file extension when saving designs as macros, AR# 61970: v2.0 - AXI IIC – AXI IIC example configured for SCL of 100 KHz derives a lesser frequency. We have configured AXI IIC for a Serial Clock (SCL) of 100 KHz. Placed the data at slave device address 0x6C with one data byte: Placed the data at the slave device address 0x6C with two data bytes: Placed the data at slave device address 0x6C with two data bytes. Thanks. 0 Kudos Share. The XIic driver uses the complete FIFO functionality to transmit/receive data. For details, see xiic_dynamic_eeprom_example.c.

This is an expected behavior with the AXI IIC controller.

Alternatively just fill in whichever are applicable for your test case. In this system the iic IP interrupt is hooked directly into the interrupt port of the zynq processor. This example contains an interrupt based design which shows the usage of the Xilinx iic device and driver to exercise the temperature sensor. Write 0x_ _ _ to the TX_FIFO (set start bit, device address to 0x__, write access). 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. This example writes/reads from the lower 256 bytes of the IIC EEPROMS. Created the example project and ran synthesis. I'm trying to get an i2c AXI peripheral to work on a Zynq board. However the SCL clock measured by simulation is less than 100 KHz. As per the IIC protocol we do not recommend having a byte with both a start and stop bit together in it. 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. This will help you to follow the programming sequence as well. I created a new project in Vivado 2019.1 using an xcku040-ffva1156-3-e part and selected the AXI IIC ip from the catalog. A TX FIFO empty interrupt transfer will not be generated for it, and therefore it will assert a bus not busy interrupt. The transfer is cache coherent and when the transfer is complete, the CPU sees the updated OCM without invalidating or flushing the cache. This example consists of a polled mode design which shows the usage of the Xilinx iic device and low-level driver to exercise the EEPROM. How can we fix this issue? The same block RAM is also accessible by the CDMA.

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