pynq.lib.rpi Package¶

The pynq.lib.rpi package is a collection of drivers for controlling peripherals attached to a RPi interface. The RPi interface can control Raspberry Pi peripherals.

pynq.lib.rpi Module¶

class pynq.lib.rpi.rpi.Rpi(mb_info, mb_program)[source]¶

Bases: pynq.lib.pynqmicroblaze.pynqmicroblaze.PynqMicroblaze

This class controls the Raspberry Pi Microblaze instances in the system.

This class inherits from the PynqMicroblaze class. It extends PynqMicroblaze with capability to control Raspberry Pi devices.

ip_name¶

The name of the IP corresponding to the Microblaze.

Type:	str

rst_name¶

The name of the reset pin for the Microblaze.

Type:	str

mb_program¶

The absolute path of the Microblaze program.

Type:	str

state¶

The status (IDLE, RUNNING, or STOPPED) of the Microblaze.

Type:	str

reset_pin¶

The reset pin associated with the Microblaze.

Type:	GPIO

mmio¶

The MMIO instance associated with the Microblaze.

Type:	MMIO

interrupt¶

An asyncio.Event-like class for waiting on and clearing interrupts.

Type:	Event

read_mailbox(data_offset, num_words=1)[source]¶

This method reads mailbox data from the Microblaze.

Parameters:	data_offset (int) – The offset for mailbox data, 0,4,… for MAILBOX 0,1,… num_words (int) – Number of 32b words to read from Microblaze mailbox.
Returns:	An int of a list of data read from the mailbox.
Return type:	int/list

write_blocking_command(command)[source]¶

This method writes a blocking command to the Microblaze.

The program waits in the loop until the command is cleared by the Microblaze.

Parameters:	command (int) – The command to write to the Microblaze.
Returns:
Return type:	None

write_mailbox(data_offset, data)[source]¶

This method write data into the mailbox of the Microblaze.

Parameters:	data_offset (int) – The offset for mailbox data, 0,4,… for MAILBOX 0,1,… data (int/list) – A list of 32b words to be written into the mailbox.
Returns:
Return type:	None

write_non_blocking_command(command)[source]¶

This method writes a non-blocking command to the Microblaze.

The program will just send the command and returns the control immediately.

Parameters:	command (int) – The command to write to the Microblaze.
Returns:
Return type:	None