?? mymcbsp.h
字號(hào):
#include "regs_6713.h"
//unsigned short buf[11];
unsigned short cnt;
//McBSP initialization
void init_McBSP()//Config McBSP as UART
{
SPCR0 &= 0xff9efffe;
wait(100);
XCR0 = 0x11040840;//16 bits word;10 words phase;0 delay;
RCR0 = 0x11040840;//16 bits word;10 words phase;0 delay;
SRGR0 = 0x2000001a;//CLKGDV+1=27;internal clock;baud 115200
//SRGR0 = 0x2000000a;//CLKGDV+1=11;internal cpu clock20MHz;baud rate 57600,
MCR0 = 0x00000000;
RCER0 = 0x00000000;
XCER0 = 0x00000000;
PCR0 = 0x00000B0C;
wait(100);
SPCR0 |= 0x00400000;
wait(100000);
SPCR0 |= 0x00010001;
wait(100);
//for interruption
/*INT_MUXL &= 0xe7ffffff;
INT_MUXL |= 0x60000000;
ICR=0xFFFFFFFF;
CSR |= 0x00000001;
IER |= 0x00000202;
//open the MCBSP0*/
}
void UART_Tran(unsigned char trandata)
{
unsigned short buf[10];
short i;
for (i=0; i<10; i++)//打包一個(gè)字節(jié)的數(shù)據(jù)送入buf待發(fā)送
{
if (i == 0)
buf[i] = 0x0000;
else if ((i > 0) && (i <9))
{
if(trandata & (0x01 << (i-1)))
buf[i] = 0xFFFF;
else
buf[i] = 0x0000;
}
else if (i == 9)
buf[i] = 0xFFFF;
else
buf[i] = 0x0000;
}
i = 0;
while(i<10)
{
if((SPCR0 & 0x00020000)!=0)
DXR0 = buf[i++];
}
}
interrupt void c_int09(void)
{
/*UART_Tran(0x55);
if(cnt<11)
{
DXR0 = buf[cnt];
cnt++;
}
else
cnt = 0;
ICR=0xFFFFFFFF;*/
}
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