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
init_lowlevel(void)
{
/* button init */
/* set up kbi */
enable_irq_kbi(4);
kbi_edge(4);
enable_ext_wu(4);
// kbi_pol_neg(7);
// kbi_pol_pos(7);
// gpio_sel0_pullup(29);
// gpio_pu0_disable(29);
trim_xtal();
/* uart init */
uart_init(BRINC, BRMOD, SAMP);
default_vreg_init();
maca_init();
set_channel(RF_CHANNEL - 11); /* channel 11 */
set_power(0x12); /* 0x12 is the highest, not documented */
enable_irq(CRM);
#if USE_32KHZ_XTAL
enable_32khz_xtal();
#else
cal_ring_osc();
#endif
#if USE_32KHZ_XTAL
*CRM_RTC_TIMEOUT = 32768 * 10;
#else
*CRM_RTC_TIMEOUT = cal_rtc_secs * 10;
#endif
#if (USE_WDT == 1)
/* set the watchdog timer timeout to 1 sec */
cop_timeout_ms(WDT_TIMEOUT);
/* enable the watchdog timer */
CRM->COP_CNTLbits.COP_EN = 1;
#endif
/* XXX debug */
/* trigger periodic rtc int */
// clear_rtc_wu_evt();
// enable_rtc_wu();
// enable_rtc_wu_irq();
}
int main(void)
{
int x = 32768;
trim_xtal();
uart_init(UART1, 115200);
rtc_init();
printf("pwm test\r\n");
pwm_init_stopped(TMR0, 12000000, x);
pwm_init_stopped(TMR1, 12000000, x);
TMR0->ENBL |= TMR_ENABLE_BIT(TMR0) | TMR_ENABLE_BIT(TMR1);
for(;;) {
printf("duty %d = %d%%\r\n", x, ((x * 100 + 32768) / 65536));
switch(uart1_getc()) {
case '[': x -= 1; break;
case ']': x += 1; break;
case '-': x -= 32; break;
case '=': x += 32; break;
case '_': x -= 512; break;
case '+': x += 512; break;
case '`': x = 65535 * 0/10; break;
case '1': x = 65535 * 1/10; break;
case '2': x = 65535 * 2/10; break;
case '3': x = 65535 * 3/10; break;
case '4': x = 65535 * 4/10; break;
case '5': x = 65535 * 5/10; break;
case '6': x = 65535 * 6/10; break;
case '7': x = 65535 * 7/10; break;
case '8': x = 65535 * 8/10; break;
case '9': x = 65535 * 9/10; break;
case '0': x = 65535 * 10/10; break;
}
x &= 65535;
pwm_duty(TMR0, x);
}
}
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;
}
}
}
}
void main(void) {
volatile packet_t *p;
#ifdef CARRIER_SENSE
volatile uint32_t i;
#endif
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(INC, MOD, SAMP);
vreg_init();
maca_init();
///* Setup the timer */
*TMR_ENBL = 0; /* tmrs reset to enabled */
*TMR0_SCTRL = 0;
*TMR0_LOAD = 0; /* reload to zero */
*TMR0_COMP_UP = 18750; /* trigger a reload at the end */
*TMR0_CMPLD1 = 18750; /* compare 1 triggered reload level, 10HZ maybe? */
*TMR0_CNTR = 0; /* reset count register */
*TMR0_CTRL = (COUNT_MODE<<13) | (PRIME_SRC<<9) | (SEC_SRC<<7) | (ONCE<<6) | (LEN<<5) | (DIR<<4) | (CO_INIT<<3) | (OUT_MODE);
*TMR_ENBL = 0xf; /* enable all the timers --- why not? */
set_channel(CHANNEL); /* channel 11 */
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;
*MACA_RXEND = end;
set_prm_mode(AUTOACK);
while(1) {
if((*TMR0_SCTRL >> 15) != 0)
tick();
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
while((p = rx_packet())) {
if(p) free_packet(p);
}
p = get_free_packet();
if(p) {
fill_packet(p);
#ifdef CARRIER_SENSE
for(i=0; i<POWER_DELAY; i++) {continue;}
while(get_power()>74) {}
#endif
#ifdef BLOCKING_TX
blocking_tx_packet(p);
#else
tx_packet(p);
#endif
current_pkts++;
#if defined(RANDOM_WAIT_TIME) || defined(FIXED_WAIT)
random_wait();
#endif
}
}
}
