Routing Render

cb_renderer

class spydrnet_physical.util.cb_renderer(name, gsb_xml, scale=40, spacing=None)

This class renders the conenction box information

Methods:

extract_info()
report_ipins()	Reports IPIN information

extract_info() → None

Table 1 Channel Variables

ipin_l	IPIN (Output) Pin toward left direction
ipin_l_len	Number of output pins towards left direction

report_ipins()

Reports IPIN information

Parameters

pMap (Pin map information if position needs to modified {pin_label: location}) – example: {‘top_1’: 2, ‘left_1’: 1 }

sb_renderer

class spydrnet_physical.util.sb_renderer(name, gsb_xml, scale=40, spacing=None)

Renders the switch box information from GSB (Generic Switch Box) file

Methods:

extract_info()	Extracts all parameters
report_connectivity([pin_map, in_pin, ...])	Report connectivity of each driver mux

extract_info() → None

Extracts all parameters

Table 2 Channel Variables

chan_out	All output channels
chanx_[l/r]_in	Horizontal left and right incoming channels
chany_[t/b]_in	Vertical top and bottom incoming channels
opin_l[l/r/t/b]	Incoming grid output channels

report_connectivity(pin_map={}, in_pin=None, out_pin=None, filter_direct=False)

Report connectivity of each driver mux

Parameters

• filter_direct (bool) (Skips printing of direct feedtrhough connections)

• in_pin

• out_pin

RoutingRender

class spydrnet_physical.util.RoutingRender(name, gsb_xml, scale=40, spacing=None)

This class illustrates the FPGA switch box and connection box based on the given GSB xml files.

General Variables

Parameters

• self.name – Name of the module

• self.scale – General scale for rendering connectivity

• self.spacing – Margin beetween each section

• self.root – Parsed XML Root element

Table 3 Channel Variables

self.chanx	Unique list of elements horizontal channels
self.chanx_l	Unique list of elements left incoming chanx channels
self.chanx_l_len	length of chanx_l
self.chanx_r	Unique list of elements right incoming chanx channels
self.chanx_r_len	length of chanx_r
self.chanx_l_drivers	New generated left outgoing channels with feedthrough
self.chanx_l_ft	Left outgoing channels with feedthrough
self.chanx_l_out_map	Mapping of ft/driver index with offset on the left side
self.ipin_l	Unique list of elements outgoing from connection box on left side
self.ipin_l_len	Length of ipin_l
self.opin_l	Unique list of elements incoming from left side
self.opin_l_len	Length of opin_l
self.opin_l_t	Unique list of elements incoming from left top side
self.opin_l_t_len	Length of opin_l_t
self.opin_l_b	Unique list of elements incoming from left bottom side
self.opin_l_b_len	Length of opin_l_b

__init__(name, gsb_xml, scale=40, spacing=None) → None

Initialise the rendering class

Parameters

• name (str) – Name of the connection box

• gsb_xml (str) – XML file path to read

Methods:

update_dimensions(scale, spacing)	Updates scale and spacing dimensions
report_incoming_channels(side)	This prints incoming channels in the given switch box from the given direction index, Mux, ChanX, Chany, OPIN_L, OPIN_R, OPIN_T, OPIN_B
report_outgoing_channels(side)	This prints the channel information of given switch box for a given direction channels
extract_info()	Extracts insformation from provided general switch box file
get_stats([print_header, noprint])	Prints switch box statistics
save([filename, viewbox])	Save SVG file
render_connection_box(side[, pinmap, ...])	Render connections box in SVG format
render_switch_pattern()	Create SVG object rendering all the switchs from switch box
add_partitions()	This function creates initial floorplan for rendering switch boxes

update_dimensions(scale, spacing)

Updates scale and spacing dimensions

report_incoming_channels(side)

This prints incoming channels in the given switch box from the given direction index, Mux, ChanX, Chany, OPIN_L, OPIN_R, OPIN_T, OPIN_B

report_outgoing_channels(side)

This prints the channel information of given switch box for a given direction channels

extract_info()

Extracts insformation from provided general switch box file

get_stats(print_header=False, noprint=False)

Prints switch box statistics

save(filename=None, viewbox=None)

Save SVG file

render_connection_box(side, pinmap=None, channel_map=None, filename=None)

Render connections box in SVG format

render_switch_pattern()

Create SVG object rendering all the switchs from switch box

add_partitions()

This function creates initial floorplan for rendering switch boxes

┌───────────────────────────────┐ │ │ │ ┌───────────────────────────┐ │ │ │ │ │ │ │ ┌──────────────────────┐ │ │ │ │ │ │ │ │ │ │ │ ┌──────────────────┐ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │Channel_CrossOver │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └──────────────────┘ │ │ │ │ │ │ Driver_Channels_1 │ │ │ │ │ └──────────────────────┘ │ │ │ │ Driver_Channels_2 │ │ │ └───────────────────────────┘ │ │ OPINs_1 │ └───────────────────────────────┘

Channel_CrossOver and Driver_Channels_1 section always exists. Driver_Channels_2 on specific site can be skipped if there are no channels drivers in that direction