Zilog ZUSBOPTS Manual do Utilizador descarregar pdf (Página 192)

100

101

Language Extensions UM017105-0511

164

Zilog Developer Studio II – ZNEO™

User Manual

The following values for vectnum are supported:

Placement Directives

The ZNEO C-Compiler provides language extensions to declare a variable at an address

and to align a variable at a specified alignment.

Placement of a Variable

The following syntax can be used to declare a global or static variable at an address:

char placed_char _At 0xb9ff; // placed_char is assigned an address

0xb9ff.

far struct {

char ch;

int ii;

} ss _At 0x080eff; // ss is assigned an address

0x080eff

rom char init_char _At 0x2fff = 33;

// init_char is in rom and initialized to 33

Only placed variables with the rom or erom storage class specifiers can be initialized. The

placed variables with

near and far storage class specifier cannot be initialized. The unini-

tialized placed variables are not initialized to zero by the compiler startup routine.

ADC

I2C

P0AD

P1AD

P2AD

P3AD

P4AD

P5AD

P6AD

P7AD

PWM_FAULT

PWM_TIMER

RESET

SPI

SYSEXC

TIMER0

TIMER1

TIMER2

UART0_RX

UART0_TX

UART1_RX

UART1_TX

Note:

1 2 ... 187 188 189 190 191 192 193 194 195 196 197 ... 519 520

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