void main(void) {
volatile packet_t *p;
volatile uint8_t t=20;
uint8_t chan;
char c;
gpio_data(0);
gpio_pad_dir_set( 1ULL << LED );
/* read from the data register instead of the pad */
/* this is needed because the led clamps the voltage low */
gpio_data_sel( 1ULL << LED);
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(UART1, 115200);
vreg_init();
maca_init();
/* sets up tx_on, should be a board specific item */
*GPIO_FUNC_SEL2 = (0x01 << ((44-16*2)*2));
gpio_pad_dir_set( 1ULL << 44 );
set_power(0x0f); /* 0dbm */
chan = 0;
set_channel(chan); /* channel 11 */
*MACA_MACPANID = 0xaaaa;
*MACA_MAC16ADDR = 0x1111;
*MACA_TXACKDELAY = 68; /* 68 puts the tx ack at about the correct spot */
set_prm_mode(AUTOACK);
print_welcome("rftest-rx");
while(1) {
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
if((p = rx_packet())) {
/* print and free the packet */
printf("autoack-rx --- ");
print_packet(p);
maca_free_packet(p);
}
if(uart1_can_get()) {
c = uart1_getc();
if(c == 'z') t++;
if(c == 'x') t--;
*MACA_TXACKDELAY = t;
printf("tx ack delay: %d\n\r", t);
}
}
}
void main(void) {
uart1_init(INC,MOD,SAMP);
while(1) {
if(uart1_can_get()) {
/* Receive buffer isn't empty */
/* read a byte and write it to the transmit buffer */
uart1_putc(uart1_getc());
}
}
}
uint8_t uart1_getc(void) {
#if UART1_RX_BUFFERSIZE > 32
/* First pull from the ram buffer */
uint8_t c=0;
if (u1_rx_head != u1_rx_tail) {
c = u1_rx_buf[u1_rx_head++];
if (u1_rx_head >= sizeof(u1_rx_buf))
u1_rx_head=0;
return c;
}
#endif
/* Then pull from the hardware fifo */
while(uart1_can_get() == 0) { continue; }
return *UART1_UDATA;
}
void main(void) {
volatile packet_t *p;
char c;
uint16_t r=30; /* start reception 100us before ack should arrive */
uint16_t end=180; /* 750 us receive window*/
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(UART1, 115200);
vreg_init();
maca_init();
set_channel(0); /* channel 11 */
// set_power(0x0f); /* 0xf = -1dbm, see 3-22 */
// set_power(0x11); /* 0x11 = 3dbm, see 3-22 */
set_power(0x12); /* 0x12 is the highest, not documented */
/* sets up tx_on, should be a board specific item */
GPIO->FUNC_SEL_44 = 1;
GPIO->PAD_DIR_SET_44 = 1;
GPIO->FUNC_SEL_45 = 2;
GPIO->PAD_DIR_SET_45 = 1;
*MACA_RXACKDELAY = r;
printf("rx warmup: %d\n\r", (int)(*MACA_WARMUP & 0xfff));
*MACA_RXEND = end;
printf("rx end: %d\n\r", (int)(*MACA_RXEND & 0xfff));
set_prm_mode(AUTOACK);
print_welcome("rftest-tx");
while(1) {
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
while((p = rx_packet())) {
if(p) {
printf("RX: ");
print_packet(p);
free_packet(p);
}
}
if(uart1_can_get()) {
c = uart1_getc();
switch(c) {
case 'z':
r++;
if(r > 4095) { r = 0; }
*MACA_RXACKDELAY = r;
printf("rx ack delay: %d\n\r", r);
break;
case 'x':
if(r == 0) { r = 4095; } else { r--; }
*MACA_RXACKDELAY = r;
printf("rx ack delay: %d\n\r", r);
break;
case 'q':
end++;
if(r > 4095) { r = 0; }
*MACA_RXEND = end;
printf("rx end: %d\n\r", end);
break;
case 'w':
end--;
if(r == 0) { r = 4095; } else { r--; }
*MACA_RXEND = end;
printf("rx end: %d\n\r", end);
break;
default:
p = get_free_packet();
if(p) {
fill_packet(p);
printf("autoack-tx --- ");
print_packet(p);
tx_packet(p);
}
break;
}
}
}
}
int main(void) {
mc1322x_init();
/* m12_init() flips the mux switch */
/* trims the main crystal load capacitance */
if (!FORCE_ECONOTAG_I && CRM->SYS_CNTLbits.XTAL32_EXISTS) {
/* M12 based econotag */
PRINTF("trim xtal for M12\n\r");
CRM->XTAL_CNTLbits.XTAL_CTUNE = (M12_CTUNE_4PF << 4) | M12_CTUNE;
CRM->XTAL_CNTLbits.XTAL_FTUNE = M12_FTUNE;
/* configure pullups for low power */
GPIO->FUNC_SEL.GPIO_63 = 3;
GPIO->PAD_PU_SEL.GPIO_63 = 0;
GPIO->FUNC_SEL.SS = 3;
GPIO->PAD_PU_SEL.SS = 1;
GPIO->FUNC_SEL.VREF2H = 3;
GPIO->PAD_PU_SEL.VREF2H = 1;
GPIO->FUNC_SEL.U1RTS = 3;
GPIO->PAD_PU_SEL.U1RTS = 1;
} else {
/* econotag I */
PRINTF("trim xtal for Econotag I\n\r");
CRM->XTAL_CNTLbits.XTAL_CTUNE = (ECONOTAG_CTUNE_4PF << 4) | ECONOTAG_CTUNE;
CRM->XTAL_CNTLbits.XTAL_FTUNE = ECONOTAG_FTUNE;
}
/* create mac address if blank*/
if (mc1322x_config.eui == 0) {
/* mac address is blank */
/* construct a new mac address based on IAB or OUI definitions */
/* if an M12_SERIAL number is not defined */
/* generate a random extension in the Redwire experimental IAB */
/* The Redwire IAB (for development only) is: */
/* OUI: 0x0050C2 IAB: 0xA8C */
/* plus a random 24-bit extension */
/* Otherwise, construct a mac based on the M12_SERIAL */
/* Owners of an Econotag I (not M12 based) can request a serial number from Redwire */
/* to use here */
/* M12 mac is of the form "EC473C4D12000000" */
/* Redwire's OUI: EC473C */
/* M12: 4D12 */
/* next six nibbles are the M12 serial number as hex */
/* e.g. if the barcode reads: "12440021" = BDD1D5 */
/* full mac is EC473C4D12BDD1D5 */
#if (M12_SERIAL == 0)
/* use random mac from experimental range */
mc1322x_config.eui = (0x0050C2A8Cull << 24) | (*MACA_RANDOM & (0xffffff));
#else
/* construct mac from serial number */
mc1322x_config.eui = (0xEC473C4D12ull << 24) | M12_SERIAL;
#endif
mc1322x_config_save(&mc1322x_config);
}
/* configure address on maca hardware and RIME */
contiki_maca_set_mac_address(mc1322x_config.eui);
#if NETSTACK_CONF_WITH_IPV6
memcpy(&uip_lladdr.addr, &linkaddr_node_addr.u8, sizeof(uip_lladdr.addr));
queuebuf_init();
NETSTACK_RDC.init();
NETSTACK_MAC.init();
NETSTACK_NETWORK.init();
#if DEBUG_ANNOTATE
print_netstack();
#endif
#if ! SLIP_RADIO
process_start(&tcpip_process, NULL);
#endif
#if DEBUG_ANNOTATE
print_lladdrs();
#endif
#endif /* endif NETSTACK_CONF_WITH_IPV6 */
process_start(&sensors_process, NULL);
print_processes(autostart_processes);
autostart_start(autostart_processes);
/* Main scheduler loop */
while(1) {
check_maca();
if(uart1_input_handler != NULL) {
if(uart1_can_get()) {
uart1_input_handler(uart1_getc());
}
}
process_run();
}
return 0;
}
uint8_t uart1_getc(void) {
while(uart1_can_get() == 0) { continue; }
return *UART1_UDATA;
}