Mikroelektronika MIKROE-724 データシート

mikroBasic PRO for dsPIC30/33 and PIC24

MikroElektronika

341

FLASH_Write_Compact

FLASH_Write_Init

Prototype

sub procedure FLASH_Write_Compact(dim flash_address as longint, dim data_

address as word, dim bytes as word)

Description Fills a portion of Flash memory using the dsPIC30 RTSP module, in the “compact” manner. In this way,

several blocks of RTSP’s latch can be written in one pass. One latch block contains 4 instructions (8

addresses, 12 bytes). Up to 8 latch blocks can be written in one round, resulting in a total of 8*12 = 96

bytes. This method uses all available bytes of the program FLASH memory, including those that are

not mapped to address space (every 3rd byte).

Parameters -

flash_address

: starting address of the FLASH memory block

data_address

: data to be written

bytes

: number of bytes to be written. The amount of bytes to be written must be a multiply of 12,

since this is the size of the RTSP’s write latch(es).

Returns

Nothing.

Requires

The block to be written to must be erased first, either from the user code FLASH_Erase32, or during

the programming of MCU. Please note that block size that is to be erased is different from the one that

can be written with this function!

Example

dim flash_address as longint

cArr as string[36]

ptr_data as word

...

flash_address = 0x006000

cArr = “mikroElektronika12mikroElektronika34”

ptr_data = @cArr

FLASH_Write_Compact(flash_address, ptr_data, 36)

Notes

The user should take care about the address alignment (see the explanation at the beginning of this

page).

Prototype

sub procedure FLASH_Write_Init(dim flash_address as longint, dim data_address

as word)

Description Initializes RTSP for write-to-FLASH operation.
Parameters -