2. reference

2.1 Function list

function	Function name	number
program load	DSP_LoadProgram	1
data light	DSP_WriteData	2
data read	DSP_ReadData	3
Start execution	DSP_Start	4
execution stop	DSP_Stop	5
Execution completion check	DSP_CheckEnd	6

2.2 Function specifications

one View table

Title function specification

Function program load

Function name DSP_LoadProgram

No 1

Format

void DSP_LoadProgram(Uint8 dst, Uint32 *src, Uint16 count)

input

dst	:Address in DSP program RAM
src	:DSP program storage start address
count	: Transfer count (longword unit)

output

none

function value

none

function

Transfers the data at the specified DSP program storage start address to the DSP program RAM address for the number of transfers (in longword units).

one View table

Title function specification

Function data light

Function name DSP_WriteData

No 2

Format

void DSP_WriteData(Uint8 dst, Uint32 *src, Uint16 count)

input

dst	:Address in DSP data RAM
src	:DSP data storage address
count	: Transfer count (longword unit)

output

none

function value

none

function

Transfers the data at the specified DSP data storage address to the DSP data RAM address for the number of transfers (in longword units). Specify the DSP data RAM address using 8 bits including the RAM page selection flag.

DSP_RAM_0
DSP_RAM_1
DSP_RAM_2
DSP_RAM_3

example

DSP_RAM_2｜3=Relative 3rd long word of RAM2 page

one View table

Title function specification

Function data read

Function name DSP_ReadData

No 3

Format

void DSP_ReadData(Uint32 *dst, Uint8 src, Uint16 count)

input

dst	:DSP data storage address
src	:Address in DSP data RAM
count	: Transfer count (longword unit)

output

none

function value

none

function

Transfers the data at the specified DSP data RAM address to the DSP data storage address for the number of transfers (in longword units). Please specify the DPS data RAM address using 8 bits including the RAM page selection flag.

one View table

Title function specification

Function Start execution

Function name DSP_Start

No 4

Format

void DSP_Start(Uint8 pc)

input

pc: program counter

output

none

function value

none

function

Executes the DSP program from the specified program counter.

one View table

Title function specification

Function execution stop

Function name DSP_Stop

No 5

Format

void DSP_Stop(void)

input

none

output

none

function value

none

function

Stops the currently running DSP program.

one View table

Title function specification

Function Execution completion check

Function name DSP_CheckEnd

No 6

Format

Uint8 DSP_CheckEnd(void)

input

none

output

none

function value

end flag

constant name	explanation
DSP_END	Execution finished
DSP_NOT_END	Running

function

Checks whether the DSP program has finished executing.