Motorola MC68328 Información técnica descargar pdf (Pagina 44)

3-26 FLEX Alphanumeric Chip MC68175 Interface

Software Development

Porting FLEX One-Way Stack to the MC68328 MPU

/* Read the first message specified in the table */

handle = (UVAR8*) FStkOpen(msgid, (UVAR8)FILTERED);

/* Get the message attributes, including message length */

header = (HEADER *) FStkGetAttrib(msgid,(UVAR8)(sizeof(HEADER)),

ATTRIB_BUF);

* In the case that we cannot open the message, return

to the caller

if (!header) {

(void)FStkClose(handle);

return;

}

if (BTST(header->e.msg_attrib, HDR_TONE_ONLY)) {

pageData[i] = '\0';

}

else {

/* Retrieve message and store it in pageData variable */

for (i = 0; i < header->e.msg_char_size; i++) {

(void)FStkRead(handle, (UVAR8*) &filterData);

if ((filterData.data >= 0x20) && (filterData.data

< 0x7F))

pageData[i] = (UVAR8) filterData.data;

else

pageData[i] = 0x2E;

}

pageData[i] = '\0';

}

(void)FStkClose(handle);

/* Display the paging message on LCD */

displayMessage(pageData);

}

Example 3-12 Function GetPage (Continued)

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cale Semiconductor,

Freescale Semiconductor, Inc.

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Motorola MC68328 Información técnica Pagina 44