 |
 |
|
 |
 |
ZBasic Language Reference
151
ZX Microcontroller Family
Appendix B - Pre-Defined Structures
The following pre-defined structures are available for most ZX devices based on Atmel ATmega CPUs.
However, due to irregularities in the arrangement of registers on some mega CPUs they are not available.
In particular, the predefined structures are not available for ZX devices based on the mega32 or the
mega128.
One or more of the pre-defined structures may be added to your application with the Option Include
directive using the structure names below.
ATmega-based ZX Devices
' For accessing I/O ports:
Structure Port_t
Public Volatile Pin as Byte
Public Volatile DDR as Byte
Public Volatile Port as Byte
End Structure
' For accessing 8-bit timers:
Structure Timer8_t
Public Volatile TCCRA as Byte
Public Volatile TCCRB as Byte
Public Volatile CNT as Byte
Public Volatile ICR as Byte
Public Volatile OCRA as Byte
Public Volatile OCRB as Byte
End Structure
' For accessing 16-bit timers:
Structure Timer16_t
Public Volatile TCCRA as Byte
Public Volatile TCCRB as Byte
Public Volatile TCCRC as Byte
Public Volatile unused_1 as Byte
Public Volatile CNT as UnsignedInteger
Public Volatile ICR as UnsignedInteger
Public Volatile OCRA as UnsignedInteger
Public Volatile OCRB as UnsignedInteger
Public Volatile OCRC as UnsignedInteger ' mega1280 and mega1281 only
End Structure
' For accessing USARTs:
Structure USART_t
Public Volatile UCSRA as Byte
Public Volatile UCSRB as Byte
Public Volatile UCSRC as Byte
Public Volatile unused_1 as Byte
Public Volatile UBRR as UnsignedInteger
Public Volatile UDR as Byte
End Structure
ATmega-based ZX Devices
' For accessing I/O ports:
Structure Port_t
Public Volatile Dir as Byte
Public Volatile DirSet as Byte
Public Volatile DirClr as Byte
Public Volatile DirTgl as Byte
Public Volatile Out as Byte
|
 |
|