This file contains the main functions for a Poisson spike generator. More...

#include <common/maths-util.h>
#include <common/send_mc.h>
#include <data_specification.h>
#include <recording.h>
#include <debug.h>
#include <normal.h>
#include <simulation.h>
#include <spin1_api.h>
#include <bit_field.h>
#include <stdfix-full-iso.h>
#include <limits.h>
#include <circular_buffer.h>
#include "profile_tags.h"
#include <profiler.h>
#include <wfi.h>

Data Structures
struct	spike_source_t
	data structure for Poisson sources More...

struct	timed_out_spikes
	data structure for recording spikes More...

struct	rng_seed_t
	An RNG seed of 4 words. More...

struct	global_parameters
	Parameters of the SpikeSourcePoisson. More...

struct	poisson_extension_provenance
	Structure of the provenance data. More...

struct	source_info
	Collection of rates to apply over time to a particular spike source. More...

struct	source_expand_details

struct	source_expand_region

struct	sdram_config
	A region of SDRAM used to transfer synapses. More...

Macros
#define	END_OF_TIME 0xFFFFFFFF

#define	NUMBER_OF_REGIONS_TO_RECORD 1
	The number of recording regions.

#define	BYTE_TO_WORD_CONVERTER 4
	Bytes per word.

#define	ISI_SCALE_FACTOR 1000
	A scale factor to allow the use of integers for "inter-spike intervals".

Enumerations
enum	region { SYSTEM , POISSON_PARAMS , RATES , SPIKE_HISTORY_REGION , PROVENANCE_REGION , PROFILER_REGION , SDRAM_PARAMS_REGION , EXPANDER_REGION }
	spike source array region IDs in human readable form More...

enum	callback_priorities { MULTICAST = -1 , SDP = 0 , DMA = 1 , TIMER = 2 }
	Priorities for interrupt handlers. More...

Functions
static uint32_t	rng (void)
	Random number generation for the Poisson sources. This is a local version for speed of operation.

static uint32_t	n_spikes_poisson_fast (UFRACT exp_minus_lambda)
	How many spikes to generate for a fast Poisson source.

static REAL	n_steps_until_next (void)
	How many time steps until the next spike for a slow Poisson source.

static uint32_t	slow_spike_source_get_time_to_spike (uint32_t mean_inter_spike_interval_in_ticks)
	Determine the time in timer ticks multiplied by ISI_SCALE_FACTOR until the next spike is to occur given the mean inter-spike interval.

static uint32_t	fast_spike_source_get_num_spikes (UFRACT exp_minus_lambda)
	Determine how many spikes to transmit this timer tick, for a fast source.

static uint32_t	faster_spike_source_get_num_spikes (REAL sqrt_lambda)
	Determine how many spikes to transmit this timer tick, for a faster source (where λ is large enough that a Gaussian can be used instead of a Poisson)

void	set_spike_source_rate (uint32_t sub_id, UREAL rate)
	Set the spike source rate as required.

static void	store_provenance_data (address_t provenance_region)
	Writes the provenance data.

static uint32_t	ms_to_ticks (unsigned long accum ms)

static void	set_spike_source_details (uint32_t id, bool rate_changed)

static bit_field_t	out_spikes_bitfield (uint32_t n)
	Set specific spikes for recording.

static void	reset_spikes (void)
	Reset the spike buffer by clearing the bit field.

static void	print_spike_source (index_t s)
	Print a spike source.

static void	print_spike_sources (void)
	Print all spike sources.

static bool	read_global_parameters (global_parameters *sdram_globals)
	Read the global parameters stored in Poisson parameter region.

static void	read_next_rates (uint32_t id)
	Get the next chunk of rates read.

static bool	read_rates (source_info *sdram_sources, bool rate_changed, uint32_t next_time)
	Read the rates of the Poisson.

static bool	expand_rates (source_expand_region items, source_info sdram_sources)

static bool	initialise_recording (data_specification_metadata_t *ds_regions)
	Initialise the recording parts of the model.

static void	expand_spike_recording_buffer (uint32_t n_spikes)
	Expand the space for recording spikes.

static bool	initialize (void)
	Initialise the model by reading in the regions and checking recording data.

static void	resume_callback (void)
	Run any functions needed at resume time.

static void	mark_spike (uint32_t neuron_id, uint32_t n_spikes)
	records spikes as needed

static void	record_spikes (uint32_t time)
	writing spikes to SDRAM

static void	add_sdram_spikes (uint32_t s_id, uint32_t num_spikes)

static void	process_fast_source (index_t s_id, spike_source_t *source)
	Handle a fast spike source.

static void	process_slow_source (index_t s_id, spike_source_t *source)
	Handle a slow spike source.

static void	timer_callback (uint timer_count, uint unused)
	Timer interrupt callback.

static void	multicast_packet_callback (uint key, uint payload)
	Multicast callback used to set rate when injected in a live example.

void	c_main (void)
	The entry point for this model.

Variables
	source_details

static uint32_t *	keys
	The keys to send spikes with.

static global_parameters	ssp_params
	The global_parameters for the sub-population.

static source_info **	source_data
	Array of pointers to sequences of rate data.

static spike_source_t *	source
	The currently applied rate descriptors.

static uint32_t	recording_flags = 0
	keeps track of which types of recording should be done to this model.

static uint32_t	time

static uint32_t	simulation_ticks = 0
	the number of timer ticks that this model should run for before exiting.

static uint32_t	infinite_run
	the int that represents the bool for if the run is infinite or not.

static timed_out_spikes *	spikes = NULL
	The recorded spikes.

static uint32_t	n_spike_buffers_allocated
	The number of recording spike buffers that have been allocated.

static uint32_t	n_spike_buffer_words
	The number of words needed for 1 bit per source.

static uint32_t	spike_buffer_size
	The size of each spike buffer in bytes.

static uint32_t	timer_period
	The timer period.

static struct sdram_config *	sdram_inputs
	Where synaptic input is to be written.

static uint16_t *	input_this_timestep
	The inputs to be sent at the end of this timestep.

static UREAL	ts_per_second
	The timesteps per second.

static circular_buffer	rate_change_buffer
	Buffer for rate change packets.

static uint32_t	colour
	The colour of the current time step.

static uint32_t	colour_mask
	The mask to apply to the time to get the colour.

static uint32_t	n_saturations = 0

Detailed Description

This file contains the main functions for a Poisson spike generator.

Definition in file spike_source_poisson.c.

Data Structure Documentation

◆ spike_source_t

struct spike_source_t

data structure for Poisson sources

Definition at line 50 of file spike_source_poisson.c.

Data Fields
uint32_t	start_ticks	When the current control regime starts, in timer ticks.
uint32_t	end_ticks	When the current control regime ends, in timer ticks.
uint32_t	next_ticks	When we should load the next control regime, in timer ticks.
uint32_t	is_fast_source	Flag for whether we're in fast or slow mode.
UFRACT	exp_minus_lambda	exp(-λ)
UREAL	sqrt_lambda	sqrt(λ)
uint32_t	mean_isi_ticks	Mean interspike interval, in ticks.
uint32_t	time_to_spike_ticks	Planned time to spike, in ticks.

◆ timed_out_spikes

struct timed_out_spikes

data structure for recording spikes

Definition at line 71 of file spike_source_poisson.c.

Data Fields
uint32_t	time	Time of recording.
uint32_t	n_buffers	Number of spike-recording buffers.
uint32_t	out_spikes[]	Spike recording buffers; sort of a bit_field_t[].

◆ rng_seed_t

struct rng_seed_t

An RNG seed of 4 words.

Definition at line 112 of file spike_source_poisson.c.

Data Fields
uint32_t	x
uint32_t	y
uint32_t	z
uint32_t	c

◆ global_parameters

struct global_parameters

Parameters of the SpikeSourcePoisson.

Definition at line 120 of file spike_source_poisson.c.

Data Fields
uint32_t	has_key	True if there is a key to transmit, False otherwise.
uint32_t	set_rate_neuron_id_mask	The mask to work out the neuron ID when setting the rate.
UFRACT	seconds_per_tick	The time between ticks in seconds for setting the rate.
UREAL	ticks_per_ms	The number of ticks per millisecond for setting the start and duration.
UREAL	slow_rate_per_tick_cutoff	The border rate between slow and fast sources.
UREAL	fast_rate_per_tick_cutoff	The border rate between fast and faster sources.
uint32_t	first_source_id	The ID of the first source relative to the population as a whole.
uint32_t	n_spike_sources	The number of sources in this sub-population.
uint32_t	max_spikes_per_tick	Maximum expected spikes per tick (for recording)
uint32_t	n_colour_bits	Number of bits to use for colour.
rng_seed_t	spike_source_seed	The seed for the Poisson generation process.

◆ poisson_extension_provenance

struct poisson_extension_provenance

Structure of the provenance data.

Definition at line 146 of file spike_source_poisson.c.

Data Fields
uint32_t	n_saturations	number of saturations

◆ source_info

struct source_info

Collection of rates to apply over time to a particular spike source.

Definition at line 56 of file local_only_conv_impl.c.

Data Fields
key_info	key_info	Information about the key.
uint32_t	source_height_per_core: 16	The source population height per core.
uint32_t	source_width_per_core: 16	The source population width per core.
uint32_t	source_height_last_core: 16	The source population height on the last core in a column.
uint32_t	source_width_last_core: 16	The source population width on the last core on a row.
uint32_t	cores_per_source_height: 16	The number cores in a height of the source.
uint32_t	cores_per_source_width: 16	Number of cores in a width of the source.
div_const	source_width_div	Used to calculate division by the source width per core efficiently.
div_const	source_width_last_div	Division by last core width.
div_const	cores_per_width_div	Division by cores per source width.
uint32_t	n_dims
source_dim	source_dim[]
uint32_t	n_rates	The number of rates.
uint32_t	index	Where in the array of rate descriptors we are.
source_details	details[]	Array of rates.

◆ source_expand_details

struct source_expand_details

Definition at line 172 of file spike_source_poisson.c.

Data Fields
uint32_t	count	The number of items to expand.
source_info	info	The details for the given number of items.

◆ source_expand_region

struct source_expand_region

Definition at line 179 of file spike_source_poisson.c.

Data Fields
uint32_t	rate_changed	Determine if any rates have been changed.
uint32_t	n_items
source_expand_details	items[]

◆ sdram_config

struct sdram_config

A region of SDRAM used to transfer synapses.

Definition at line 87 of file c_main_neurons.c.

Data Fields
uint8_t *	address	The start address of the input data to be transferred. The address of the input data to be transferred.
uint32_t	size_in_bytes	The size of the input data to be transferred per core. The size of the input data to be transferred.
uint32_t	n_synapse_cores	The number of synapse cores feeding into here.
uint32_t *	address	The address of the input data to be transferred.
uint32_t	time_for_transfer_overhead	The time of the transfer in us.
uint32_t	offset	The offset into the data to write the weights (to account for different synapse types)
uint16_t	weights[]	The weight to send for each active Poisson source.

Macro Definition Documentation

◆ END_OF_TIME

#define END_OF_TIME 0xFFFFFFFF

Definition at line 47 of file spike_source_poisson.c.

◆ NUMBER_OF_REGIONS_TO_RECORD

#define NUMBER_OF_REGIONS_TO_RECORD 1

The number of recording regions.

Definition at line 93 of file spike_source_poisson.c.

◆ BYTE_TO_WORD_CONVERTER

#define BYTE_TO_WORD_CONVERTER 4

Bytes per word.

Definition at line 95 of file spike_source_poisson.c.

◆ ISI_SCALE_FACTOR

#define ISI_SCALE_FACTOR 1000

A scale factor to allow the use of integers for "inter-spike intervals".

Definition at line 97 of file spike_source_poisson.c.

Enumeration Type Documentation

◆ region

enum region

spike source array region IDs in human readable form

Enumerator
SYSTEM	simulation interface master control
POISSON_PARAMS	application configuration; global_parameters
RATES	rates to apply; source_info
SPIKE_HISTORY_REGION	spike history recording region
PROVENANCE_REGION	provenance region
PROFILER_REGION	profiling region
SDRAM_PARAMS_REGION	SDRAM transfer parameters region.
EXPANDER_REGION	Expanding of parameters.

Definition at line 81 of file spike_source_poisson.c.

◆ callback_priorities

enum callback_priorities

Priorities for interrupt handlers.

Enumerator
MULTICAST	Multicast packet reception uses the FIQ.
SDP	SDP handling is highest ordinary priority.
DMA	DMA complete handling is medium priority.
TIMER	Regular timer interrupt is lowest priority.

Definition at line 100 of file spike_source_poisson.c.

Function Documentation

◆ rng()

static uint32_t rng ( void )

inlinestatic

Random number generation for the Poisson sources. This is a local version for speed of operation.

Returns: A random number

Definition at line 265 of file spike_source_poisson.c.

◆ n_spikes_poisson_fast()

static uint32_t n_spikes_poisson_fast ( UFRACT exp_minus_lambda )

inlinestatic

How many spikes to generate for a fast Poisson source.

Parameters

[in] exp_minus_lambda e^(-mean_rate)

Returns: How many spikes to generate

Definition at line 281 of file spike_source_poisson.c.

◆ n_steps_until_next()

static REAL n_steps_until_next ( void )

inlinestatic

How many time steps until the next spike for a slow Poisson source.

Returns: The number of time steps until the next spike

Definition at line 296 of file spike_source_poisson.c.

◆ slow_spike_source_get_time_to_spike()

static uint32_t slow_spike_source_get_time_to_spike ( uint32_t mean_inter_spike_interval_in_ticks )

inlinestatic

Determine the time in timer ticks multiplied by ISI_SCALE_FACTOR until the next spike is to occur given the mean inter-spike interval.

Parameters

[in] mean_inter_spike_interval_in_ticks The mean number of ticks before a spike is expected to occur in a slow process.

Returns: "time" in timer ticks * ISI_SCALE_FACTOR until the next spike occurs

Definition at line 323 of file spike_source_poisson.c.

◆ fast_spike_source_get_num_spikes()

static uint32_t fast_spike_source_get_num_spikes ( UFRACT exp_minus_lambda )

inlinestatic

Determine how many spikes to transmit this timer tick, for a fast source.

Parameters

[in] exp_minus_lambda exp(-λ), λ is amount of spikes expected to be produced this timer interval (timer tick in real time)

Returns: the number of spikes to transmit this timer tick

Definition at line 339 of file spike_source_poisson.c.

◆ faster_spike_source_get_num_spikes()

static uint32_t faster_spike_source_get_num_spikes ( REAL sqrt_lambda )

inlinestatic

Determine how many spikes to transmit this timer tick, for a faster source (where λ is large enough that a Gaussian can be used instead of a Poisson)

Parameters

[in] sqrt_lambda Square root of the amount of spikes expected to be produced this timer interval (timer tick in real time)

Returns: The number of spikes to transmit this timer tick

Definition at line 355 of file spike_source_poisson.c.

◆ set_spike_source_rate()

void set_spike_source_rate	(	uint32_t	sub_id,
		UREAL	rate
	)

Set the spike source rate as required.

Parameters

[in]	id	the ID of the source to be updated
[in]	rate	the rate in Hz, to be multiplied to get per-tick values

Definition at line 368 of file spike_source_poisson.c.

◆ store_provenance_data()

static void store_provenance_data ( address_t provenance_region )

static

Writes the provenance data.

Parameters

[out] provenance_region Where to write the provenance

Definition at line 411 of file spike_source_poisson.c.

◆ ms_to_ticks()

static uint32_t ms_to_ticks ( unsigned long accum ms )

inlinestatic

Definition at line 420 of file spike_source_poisson.c.

◆ set_spike_source_details()

static void set_spike_source_details	(	uint32_t	id,
		bool	rate_changed
	)

inlinestatic

Definition at line 424 of file spike_source_poisson.c.

◆ out_spikes_bitfield()

static bit_field_t out_spikes_bitfield ( uint32_t n )

inlinestatic

Set specific spikes for recording.

Parameters

[in] n the spike array index

Returns: bit field at the location n

Definition at line 456 of file spike_source_poisson.c.

◆ reset_spikes()

static void reset_spikes ( void )

inlinestatic

Reset the spike buffer by clearing the bit field.

Definition at line 461 of file spike_source_poisson.c.

◆ print_spike_source()

static void print_spike_source ( index_t s )

static

Print a spike source.

Parameters

[in] s The spike source ID

Definition at line 472 of file spike_source_poisson.c.

◆ print_spike_sources()

static void print_spike_sources ( void )

static

Print all spike sources.

Definition at line 486 of file spike_source_poisson.c.

◆ read_global_parameters()

static bool read_global_parameters ( global_parameters * sdram_globals )

static

Read the global parameters stored in Poisson parameter region.

Parameters

[in] sdram_globals the absolute SDRAM memory address to which the Poisson parameter region starts.

Returns: Whether the parameters were read successfully.

Definition at line 497 of file spike_source_poisson.c.

◆ read_next_rates()

static void read_next_rates ( uint32_t id )

inlinestatic

Get the next chunk of rates read.

Parameters

[in] id The spike source ID

Definition at line 540 of file spike_source_poisson.c.

◆ read_rates()

static bool read_rates	(	source_info *	sdram_sources,
		bool	rate_changed,
		uint32_t	next_time
	)

static

Read the rates of the Poisson.

Parameters

[in]	sdram_sources	the configuration in SDRAM
[in]	rate_changed	whether any rates have actually changed
[in]	next_time	the time which will be the next timestep to run

Returns: Whether the rates were read successfully.

Definition at line 552 of file spike_source_poisson.c.

◆ expand_rates()

static bool expand_rates	(	source_expand_region *	items,
		source_info *	sdram_sources
	)

static

Definition at line 600 of file spike_source_poisson.c.

◆ initialise_recording()

static bool initialise_recording ( data_specification_metadata_t * ds_regions )

static

Initialise the recording parts of the model.

Parameters

[in] ds_regions Data specification master descriptor

Returns: Whether recording initialisation is successful

Definition at line 649 of file spike_source_poisson.c.

◆ expand_spike_recording_buffer()

static void expand_spike_recording_buffer ( uint32_t n_spikes )

inlinestatic

Expand the space for recording spikes.

Parameters

[in] n_spikes New number of spikes to hold

Definition at line 662 of file spike_source_poisson.c.

◆ initialize()

static bool initialize ( void )

static

Initialise the model by reading in the regions and checking recording data.

Returns: Whether it successfully read all the regions and set up all its internal data structures.

Definition at line 691 of file spike_source_poisson.c.

◆ resume_callback()

static void resume_callback ( void )

static

Run any functions needed at resume time.

Definition at line 792 of file spike_source_poisson.c.

◆ mark_spike()

static void mark_spike	(	uint32_t	neuron_id,
		uint32_t	n_spikes
	)

inlinestatic

records spikes as needed

Parameters

[in]	neuron_id	the neurons to store spikes from
[in]	n_spikes	the number of times this neuron has spiked

Definition at line 831 of file spike_source_poisson.c.

◆ record_spikes()

static void record_spikes ( uint32_t time )

inlinestatic

writing spikes to SDRAM

Parameters

[in] time the time to which these spikes are being recorded

Definition at line 847 of file spike_source_poisson.c.

◆ add_sdram_spikes()

static void add_sdram_spikes	(	uint32_t	s_id,
		uint32_t	num_spikes
	)

inlinestatic

Definition at line 855 of file spike_source_poisson.c.

◆ process_fast_source()

static void process_fast_source	(	index_t	s_id,
		spike_source_t *	source
	)

static

Handle a fast spike source.

Parameters

s_id	Source ID
source	Source descriptor

Definition at line 869 of file spike_source_poisson.c.

◆ process_slow_source()

static void process_slow_source	(	index_t	s_id,
		spike_source_t *	source
	)

static

Handle a slow spike source.

Parameters

s_id	Source ID
source	Source descriptor

Definition at line 915 of file spike_source_poisson.c.

◆ timer_callback()

static void timer_callback	(	uint	timer_count,
		uint	unused
	)

static

Timer interrupt callback.

Parameters

[in]	timer_count	the number of times this call back has been executed since start of simulation
[in]	unused	for consistency sake of the API always returning two parameters, this parameter has no semantics currently and thus is set to 0

Definition at line 957 of file spike_source_poisson.c.

◆ multicast_packet_callback()

static void multicast_packet_callback	(	uint	key,
		uint	payload
	)

static

Multicast callback used to set rate when injected in a live example.

Parameters

[in]	key	Received multicast key
[in]	payload	Received multicast payload

Definition at line 1048 of file spike_source_poisson.c.

◆ c_main()

void c_main ( void )

The entry point for this model.

Definition at line 1061 of file spike_source_poisson.c.

Variable Documentation

◆ source_details

source_details

Definition at line 157 of file spike_source_poisson.c.

◆ keys

uint32_t* keys

static

The keys to send spikes with.

Definition at line 160 of file spike_source_poisson.c.

◆ ssp_params

global_parameters ssp_params

static

The global_parameters for the sub-population.

Definition at line 204 of file spike_source_poisson.c.

◆ source_data

source_info** source_data

static

Array of pointers to sequences of rate data.

Definition at line 207 of file spike_source_poisson.c.

◆ source

spike_source_t* source

static

The currently applied rate descriptors.

Definition at line 210 of file spike_source_poisson.c.

◆ recording_flags

uint32_t recording_flags = 0

static

keeps track of which types of recording should be done to this model.

Definition at line 213 of file spike_source_poisson.c.

◆ time

uint32_t time

static

the time interval parameter TODO this variable could be removed and use the timer tick callback timer value.

Definition at line 217 of file spike_source_poisson.c.

◆ simulation_ticks

uint32_t simulation_ticks = 0

static

the number of timer ticks that this model should run for before exiting.

Definition at line 220 of file spike_source_poisson.c.

◆ infinite_run

uint32_t infinite_run

static

the int that represents the bool for if the run is infinite or not.

Definition at line 223 of file spike_source_poisson.c.

◆ spikes

timed_out_spikes* spikes = NULL

static

The recorded spikes.

Definition at line 226 of file spike_source_poisson.c.

◆ n_spike_buffers_allocated

uint32_t n_spike_buffers_allocated

static

The number of recording spike buffers that have been allocated.

Definition at line 229 of file spike_source_poisson.c.

◆ n_spike_buffer_words

uint32_t n_spike_buffer_words

static

The number of words needed for 1 bit per source.

Definition at line 232 of file spike_source_poisson.c.

◆ spike_buffer_size

uint32_t spike_buffer_size

static

The size of each spike buffer in bytes.

Definition at line 235 of file spike_source_poisson.c.

◆ timer_period

uint32_t timer_period

static

The timer period.

Definition at line 238 of file spike_source_poisson.c.

◆ sdram_inputs

struct sdram_config* sdram_inputs

static

Where synaptic input is to be written.

Definition at line 241 of file spike_source_poisson.c.

◆ input_this_timestep

uint16_t* input_this_timestep

static

The inputs to be sent at the end of this timestep.

Definition at line 244 of file spike_source_poisson.c.

◆ ts_per_second

UREAL ts_per_second

static

The timesteps per second.

Definition at line 247 of file spike_source_poisson.c.

◆ rate_change_buffer

circular_buffer rate_change_buffer

static

Buffer for rate change packets.

Definition at line 250 of file spike_source_poisson.c.

◆ colour

uint32_t colour

static

The colour of the current time step.

Definition at line 253 of file spike_source_poisson.c.

◆ colour_mask

uint32_t colour_mask

static

The mask to apply to the time to get the colour.

Definition at line 256 of file spike_source_poisson.c.

◆ n_saturations

uint32_t n_saturations = 0

static

The number of times the sending of spikes saturated the weight buffers (only when doing SDRAM transfers)

Definition at line 260 of file spike_source_poisson.c.

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Data Structure Documentation

◆ spike_source_t

◆ timed_out_spikes

◆ rng_seed_t

◆ global_parameters

◆ poisson_extension_provenance

◆ source_info

◆ source_expand_details

◆ source_expand_region

◆ sdram_config

Macro Definition Documentation

◆ END_OF_TIME

◆ NUMBER_OF_REGIONS_TO_RECORD

◆ BYTE_TO_WORD_CONVERTER

◆ ISI_SCALE_FACTOR

Enumeration Type Documentation

◆ region

◆ callback_priorities

Function Documentation

◆ rng()

◆ n_spikes_poisson_fast()

◆ n_steps_until_next()

◆ slow_spike_source_get_time_to_spike()

◆ fast_spike_source_get_num_spikes()

◆ faster_spike_source_get_num_spikes()

◆ set_spike_source_rate()

◆ store_provenance_data()

◆ ms_to_ticks()

◆ set_spike_source_details()

◆ out_spikes_bitfield()

◆ reset_spikes()

◆ print_spike_source()

◆ print_spike_sources()

◆ read_global_parameters()

◆ read_next_rates()

◆ read_rates()

◆ expand_rates()

◆ initialise_recording()

◆ expand_spike_recording_buffer()

◆ initialize()

◆ resume_callback()

◆ mark_spike()

◆ record_spikes()

◆ add_sdram_spikes()

◆ process_fast_source()

◆ process_slow_source()

◆ timer_callback()

◆ multicast_packet_callback()

◆ c_main()

Variable Documentation

◆ source_details

◆ keys

◆ ssp_params

◆ source_data

◆ source

◆ recording_flags

◆ time

◆ simulation_ticks

◆ infinite_run

◆ spikes

◆ n_spike_buffers_allocated

◆ n_spike_buffer_words

◆ spike_buffer_size

◆ timer_period

◆ sdram_inputs

◆ input_this_timestep

◆ ts_per_second

◆ rate_change_buffer

◆ colour

◆ colour_mask

◆ n_saturations