void ds3234_write(uint8_t addr, uint8_t data)
{
gpio_clear(RTCCS_PORT, RTCCS_PIN);
clock_out(addr | 0x80);
clock_out(data);
gpio_set(RTCCS_PORT, RTCCS_PIN);
}
// Clock Test Process
void ClockTest(clock *clock)
{
struct msgenv* env = (struct msgenv *) malloc (sizeof (struct msgenv));
env->msg_type = (char*)malloc (sizeof (SIZE));
env->msg_text = (char*)malloc (sizeof (SIZE));
if (env){
//now enter infinite loop
while (1) {
clock_out(clock, env);
usleep(100000);
/*get_console_chars(env); //keyboard input
env = receive_message(); //***STOPS HERE TO WAIT FOR INPUT
while (env == NULL) {
usleep(100000);
env = receive_message();
}
send_console_chars(env); //CRT output, wait for ack
env = receive_message();
while (env == NULL) {
usleep (100000);
env = receive_message();
}*/
}
}
}
/* Utility to send the preamble, address, and register (common to read and write). */
static void bitbang_pre(struct mii_bus *bus, int read, u8 addr, u8 reg)
{
int i;
/* CFE uses a really long preamble (40 bits). We'll do the same. */
mdio_active(bus);
for (i = 0; i < 40; i++) {
clock_out(bus, 1);
}
/* send the start bit (01) and the read opcode (10) or write (10) */
clock_out(bus, 0);
clock_out(bus, 1);
clock_out(bus, read);
clock_out(bus, !read);
/* send the PHY address */
for (i = 0; i < 5; i++) {
clock_out(bus, (addr & 0x10) != 0);
addr <<= 1;
}
/* send the register address */
for (i = 0; i < 5; i++) {
clock_out(bus, (reg & 0x10) != 0);
reg <<= 1;
}
}
uint8_t ds3234_read(uint8_t addr)
{
uint8_t out;
gpio_clear(RTCCS_PORT, RTCCS_PIN);
clock_out(addr & 0x7F);
out = clock_in();
gpio_set(RTCCS_PORT, RTCCS_PIN);
return out;
}
