Flash Memory Library

This library provides routines for accessing microcontroller's (internal) Flash memory.

Important :

Please bear in mind that when the Flash memory is acquired and not released from the CPU I/O interface, any further Flash memory manipulation is not possible until the MCU is reprogrammed.
Use the Flash_release_semaphore and Flash_wait_semaphore routines to release/check the current status of the Flash memory controller.

Flash_Write_Buffer

Prototype	sub function Flash_Write_Buffer(dim address as longword, dim buffer as ^byte, dim length as word) as longint
Description	This sub function will write an array of bytes into the on-chip Flash memory.
Parameters	`address:` Flash memory address. `buffer:` pointer to an array to be written. `length:` number of bytes to be written.
Returns	`0` - if writing was successful. `1` - if Flash control block is not ready. `2` - if writing was not enabled. `3` - if transfer was not completed.
Requires	Nothing.
Example	Flash_Write_Buffer(Address, @buff, 16) ' write 16 bytes to Flash memory
Notes	None.

Flash_Read_Buffer

Prototype	sub function Flash_Read_Buffer(dim address as longword, dim buffer as ^byte, dim length as word) as longint
Description	This sub function will read an array of bytes from the on-chip Flash memory.
Parameters	`address:` Flash memory address. `buffer:` pointer to an array that will hold the read data. `length:` number of bytes to be read.
Returns	`0` - if writing was successful. `1` - if Flash control block is not ready. `2` - if reading was not enabled. `3` - if transfer was not completed.
Requires	Nothing.
Example	Flash_Read_Buffer(Address, @buff, 16) ' read 16 bytes from the Flash memory
Notes	None.

Flash_wait_semaphore

Prototype	sub function Flash_wait_semaphore() as integer
Description	The sub function tests if the Flash memory resource is acquired by the CPU I/O interface.
Parameters	None.
Returns	`0` - the interface acquired the Flash memory resource. `1` - the Flash memory resource is not released from the interface (i.e. not free).
Requires	Nothing.
Example	if (Flash_wait_semaphore() = 0) then ... end if
Notes	None.

Flash_release_semaphore

Prototype	sub procedure Flash_release_semaphore()
Description	The sub function releases the Flash memory resource from CPU I/O interface.
Parameters	None.
Returns	None.
Requires	Nothing.
Example	Flash_release_semaphore()
Notes	None.

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