;僅供參考 cn_f__12308.c
;路澤陽(yáng)
while(1)////////////////////////////
{
ADDRESS2=0x01;
ADDRESS1=0x00;
for(i=0;i14;i++)
{
save_char(ADDRESS1,ADDRESS2,SAVE_DATA);
}
_NOP();
ADDRESS2=0x01;
ADDRESS1=0x00;
for(j=0;j14;j++)
{
DISP_NUM[0][j]=get_char(ADDRESS1,ADDRESS2);
}
_NOP();
}
/////////writebyte/////////////////////////////////////////////////////////////
voidsave_char(charaddress1,charaddress2,charwbyte)
{
P_LCM_CONOUT|=FM18L08_CEB;//預(yù)充電
P_ADDRESSHIGH_OUT=~FM1808_WEB;//寫(xiě)操作
P_ADDRESSLOW_OUT=address1;//低8位地址
P_ADDRESSHIGH_OUT=address2;//高7位地址
P_LCM_CONOUT=~FM18L08_CEB;//地址鎖定
P_DATA_DIR=0XFF;//DATA—BUS口線(xiàn)改為輸出狀態(tài)
P_DATA_OUT=wbyte;//給出數(shù)據(jù)內(nèi)容
P_LCM_CONOUT|=FM18L08_CEB;//結(jié)束寫(xiě)操作
P_ADDRESSHIGH_OUT|=FM1808_WEB;//取消寫(xiě)狀態(tài)
ADDRESS1++;//地址遞增
if(ADDRESS1>0xff)
{
ADDRESS1=0x00;
ADDRESS2++;
if(ADDRESS2>0x7f)
{
ADDRESS2=0x00;
}
}
P_DATA_DIR=0XFF;//BUS口線(xiàn)為輸出狀態(tài)
P_DATA_OUT=0XFF;//釋放BUS總線(xiàn)
}
///////readbyte///////////////////////////////////////////////////////////////
charget_char(charaddress1,charaddress2)
{
charrbyte;
P_ADDRESSHIGH_OUT|=FM1808_WEB;//取消寫(xiě)狀態(tài)
P_LCM_CONOUT|=FM18L08_CEB;//預(yù)充電
P_ADDRESSLOW_OUT=address1;//低8位地址
P_ADDRESSHIGH_OUT=address2;//高7位地址
P_LCM_CONOUT=~FM18L08_CEB;//地址鎖定
P_LCM_CONOUT=~FM18L08_OEB;//讀狀態(tài)
P_DATA_DIR=0X00;//DATA—BUS口線(xiàn)改為輸入狀態(tài)
rbyte=P_DATA_IN;//讀入數(shù)據(jù)內(nèi)容
P_LCM_CONOUT|=FM18L08_CEB;//結(jié)束讀操作
P_LCM_CONOUT|=FM18L08_OEB;//取消讀狀態(tài)
ADDRESS1++;//地址遞增
if(ADDRESS1>0xff)
{
ADDRESS1=0x00;
ADDRESS2++;
if(ADDRESS2>0x7f)
{
ADDRESS2=0x00;
}
}
P_DATA_DIR=0XFF;//BUS口線(xiàn)為輸出狀態(tài)
P_DATA_OUT=0XFF;//釋放BUS總線(xiàn)
returnrbyte;//返回?cái)?shù)據(jù)值
}