UART ILA Backhaul

This module provides the interface for consuming data from the UART ILA over an arbitrary serial port.

class torii_ila.uart.UARTIntegratedLogicAnalyzerBackhaul(ila, serial)

UART-based ILA backhaul interface, used in combination with UARTIntegratedLogicAnalyzer to automatically set up a communications channel to get ILA samples off-device.

An instance of this class is typically created by calling UARTIntegratedLogicAnalyzer.get_backhaul() which lets the ILA configure the backhaul as needed.

Alternatively you can pass the UARTIntegratedLogicAnalyzer instance from the gateware to the constructor of this module.

The data coming off the ILA is rCOBS encoded and the samples are byte-wise swizzled, we automatically decode and de-swizzle the samples.

See torii_ila.backhaul.ILABackhaulInterface for public API.

Parameters:

• ila (UARTIntegratedLogicAnalyzer) – The ILA being used.

• serial (Serial) – The serial port the ILA is connected over.

class torii_ila.uart.UARTILACommand(value)

These are commands the UART ILA knows about

NONE = 0

No command

FLUSH = 1

Flush the ILA Sample memory down the UART.

STREAM = 2

Send the ILA sample memory down the UART until UARTILACommand.STOP is sent.

STOP = 3

Stop the ILA from sending sample stream down the UART.