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Get better random seed on startup

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This commit is contained in:
David Kopf 2011-11-14 11:51:54 -05:00
parent 31ba84eb75
commit 65032c4d35
1 changed files with 4 additions and 10 deletions
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14
platform/avr-atmega128rfa1/contiki-main.c
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@ -147,7 +147,7 @@ rng_get_uint8(void) {
#if 1 #if 1
/* Upper two RSSI reg bits (RND_VALUE) are random in rf231 */ /* Upper two RSSI reg bits (RND_VALUE) are random in rf231 */
uint8_t j; uint8_t j;
j = (PHY_RSSI>>6) | (PHY_RSSI>>4) | (PHY_RSSI>>4) | PHY_RSSI; j = (PHY_RSSI&0xc0) + ((PHY_RSSI>>2)&0x30) + ((PHY_RSSI>>4)&0x0c) + ((PHY_RSSI>>6)&0x03);
#else #else
/* Get a pseudo random number using the ADC */ /* Get a pseudo random number using the ADC */
uint8_t i,j; uint8_t i,j;
@ -291,15 +291,9 @@ uint8_t i;
NETSTACK_NETWORK.init(); NETSTACK_NETWORK.init();
#if ANNOUNCE_BOOT #if ANNOUNCE_BOOT
PRINTA("%s %s, channel %u power %u",NETSTACK_MAC.name, NETSTACK_RDC.name,rf230_get_channel(),rf230_get_txpower()); PRINTA("%s %s, channel %u , check rate %u Hz tx power %u\n",NETSTACK_MAC.name, NETSTACK_RDC.name, rf230_get_channel(),
if (NETSTACK_RDC.channel_check_interval) {//function pointer is zero for sicslowmac CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1:NETSTACK_RDC.channel_check_interval()),
unsigned short tmp; rf230_get_txpower());
tmp=CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval == 0 ? 1:\
NETSTACK_RDC.channel_check_interval());
if (tmp<65535) PRINTA(", check rate %u Hz",tmp);
}
PRINTA("\n");
#if UIP_CONF_IPV6_RPL #if UIP_CONF_IPV6_RPL
PRINTA("RPL Enabled\n"); PRINTA("RPL Enabled\n");
#endif #endif