Travaux Pratiques » Polytech Ge SP4abc 2021

#include "sfr32c87.h"

void uart0_init(void)

{

{

// U0MR REGISTER : DES BITS SMD2 A SMD0

smd0_u0mr = 1;

smd1_u0mr = 0;

smd2_u0mr = 1;

// U0MR REGISTER : CLOCK SELECT (CKDIR) STOP BIT LENGHT (STPS) PARITY ENABLE (PRYE) TXD RXD INVERTED (IOPOL)

ckdir_u0mr = 0;

stps_u0mr = 0;

prye_u0mr = 0;

iopol_u0mr = 0;

// U0SMR - USMR4 REGISTER :

u0smr = 0x00;

u0smr2 = 0x00;

u0smr3 = 0x00;

u0smr4 = 0x00;

// U0C0 REGISTER :

clk0_u0c0 = 1;

clk1_u0c0 = 0;

//ckpol_u0c0 = 0;

crs_u0c0 = 0;

crd_u0c0 = 0;

nch_u0c0 = 0;

// U0BRG REGISTER (BAUD RATE) :

u0brg = 0x20;

// U0C1 REGISTER :

te_u0c1 = 0;

re_u0c1 = 0;

// PIN SETTINGS

pd6_1=0;

pd6_2=0;

ps0_1 = 0;

ps0_2 = 0;

ps0_3 = 1;

}

}

void uart0_tx(char c)

{

crs_u0c0 = 0;

crd_u0c0 = 1;

te_u0c1 = 1;

u0tb = c;

te_u0c1 = 0;

}

char uart0_rx()

{

char c;

crs_u0c0 = 0;

crd_u0c0 = 1;

re_u0c1 = 1;

c = u0rb;

return c;

}

char sequence[26]={'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};

int i=0,j=0;

char c;

uart0_init();

while(1)

{

c = uart0_rx();

uart0_tx(c);

}