contiki/tests/rftest-tx.c

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#include <mc1322x.h>
#include <board.h>
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#include <stdio.h>
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#include "tests.h"
#include "config.h"
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#define LED LED_RED
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/* 802.15.4 PSDU is 127 MAX */
/* 2 bytes are the FCS */
/* therefore 125 is the max payload length */
#define PAYLOAD_LEN 16
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#define DELAY 100000
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void fill_packet(volatile packet_t *p) {
static volatile uint8_t count=0;
volatile uint8_t i;
p->length = PAYLOAD_LEN;
p->offset = 0;
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for(i=0; i<PAYLOAD_LEN; i++) {
p->data[i] = count++;
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}
/* acks get treated differently, even in promiscuous mode */
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/* setting the third bit makes sure that we never send an ack */
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/* or any valid 802.15.4-2006 packet */
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p->data[0] |= (1 << 3);
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}
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void main(void) {
volatile uint32_t i;
volatile packet_t *p;
/* trim the reference osc. to 24MHz */
trim_xtal();
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uart_init(INC, MOD, SAMP);
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vreg_init();
maca_init();
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set_channel(0); /* channel 11 */
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// 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_SEL2 = (0x01 << ((44-16*2)*2));
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gpio_pad_dir_set( 1ULL << 44 );
print_welcome("rftest-tx");
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while(1) {
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/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
p = get_free_packet();
if(p) {
fill_packet(p);
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printf("rftest-tx --- ");
print_packet(p);
tx_packet(p);
for(i=0; i<DELAY; i++) { continue; }
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}
}
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}