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Vitis Drivers API Documentation
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This file contains a design example for using the Mailbox hardware and driver XMbox.
This example attempts to send a known message through the mailbox from the processor identified as 0 (XPAR_CPU_ID=0) to the other processor. The message is received by the receiver and the test passes. Since the application is running on two seperate processors, the initiator declares success when the message is sent and the receiver declares success when the message is received. There is no feedback to the initiator so a terminal is required for each processor to verify that the test passed for both sides.
The example assumes there are two processors availabile in the system that are expected to inter-communicate. If Mailbox is connected to only one Processor then Data has to be sent from one port and should be received from another port.
This example has been tested on ML505 Hardware Evaluation board.
These code fragments will illustrate how the XMbox component can be used to:
MODIFICATION HISTORY:
Ver Who Date Changes
1.00a va First release 1.00a ecm 06/09/07 Cleanup, new coding standard, check into XCS 1.01a ecm 08/28/08 converted to testapp example 1.01a ecm 10/28/08 corrected output to match the requirements for TestApp integration. 2.00a hm 04/09/09 Added receiving data from the other processor. 3.01a sdm 05/06/10 Cleanup for coding guidelines and removed printfs 4.1 ms 01/23/17 Modified xil_printf statement in main function to ensure that "Successfully ran" and "Failed" strings are available in all examples. This is a fix for CR-965028. ms 04/05/17 Added tabspace for return statements in functions for proper documentation while generating doxygen. 4.6 ht 07/07/23 Added support for system device-tree flow. *
Functions | |
int | MailboxExample (u16 MboxDeviceId) |
This function sends a message to and receives a message from the other processor. More... | |
int | main (void) |
This function is the main function for the mailbox example. More... | |
int MailboxExample | ( | u16 | MboxDeviceId | ) |
This function sends a message to and receives a message from the other processor.
MboxDeviceID | is the device Id of the MailBox. |
References XMbox_Config::BaseAddress, MailboxExample_Receive(), MailboxExample_Send(), and XMbox_CfgInitialize().
int main | ( | void | ) |
This function is the main function for the mailbox example.
None. |
References MailboxExample().