2. reference

2.1 Function list

function	Seki several people	number
Program load	DSP_LoadProgram	1
Data light	DSP_WriteData	2
Data read	DSP_ReadData	3
Start execution	DSP_Start	Four
Stop execution	DSP_Stop	Five
Execution end check	DSP_CheckEnd	6

2.2 Function specifications

List

Title Function specifications

Function Program load

Function Name DSP_LoadProgram

No 1

Form

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

input

dst	: Address in DSP program RAM
src	: DSP program storage start address
count	: Number of transfers (in longword units)

output

none

Function value

none

function

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

List

Title Function specifications

Function Data light

Function Name DSP_WriteData

No 2

Form

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

input

dst	: Address in DSP data RAM
src	: DSP data storage address
count	: Number of transfers (in longword units)

output

none

Function value

none

function

The data at the specified DSP data storage address is transferred to the DSP data RAM address for the number of transfers (in longword units). Specify the DSP data RAM address in 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 = RAM 2nd page relative 3rd longword

List

Title Function specifications

Function Data read

Function Name DSP_ReadData

No 3

Form

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

input

dst	: DSP data storage address
src	: Address in DSP data RAM
count	: Number of transfers (in longword units)

output

none

Function value

none

function

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

List

Title Function specifications

Function Start execution

Function Name DSP_Start

No Four

Form

void DSP_Start (Uint8 pc)

input

pc: program counter

output

none

Function value

none

function

Executes the DSP program from the specified program counter.

List

Title Function specifications

Function Stop execution

Function Name DSP_Stop

No Five

Form

void DSP_Stop (void)

input

none

output

none

Function value

none

function

Stops the DSP program that is currently running.

List

Title Function specifications

Function Execution end check

Function Name DSP_CheckEnd

No 6

Form

Uint8 DSP_CheckEnd (void)

input

none

output

none

Function value

End flag

Constant name	explanation
DSP_END	Execution end
DSP_NOT_END	Running

function

Checks whether the execution of the DSP program has ended.