SNTP client options list. More...
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Macros | |
#define | SNTP_SET_SYSTEM_TIME(sec) LWIP_UNUSED_ARG(sec) |
SNTP macro to change system time in seconds Define SNTP_SET_SYSTEM_TIME_US(sec, us) to set the time in microseconds instead of this one if you need the additional precision. More... | |
#define | SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS |
The maximum number of SNTP servers that can be set. More... | |
#define | SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV |
Set this to 1 to implement the callback function called by dhcp when NTP servers are received. More... | |
#define | SNTP_SERVER_DNS 0 |
Set this to 1 to support DNS names (or IP address strings) to set sntp servers One server address/name can be defined as default if SNTP_SERVER_DNS == 1: #define SNTP_SERVER_ADDRESS "pool.ntp.org". More... | |
#define | SNTP_DEBUG LWIP_DBG_OFF |
SNTP_DEBUG: Enable debugging for SNTP. More... | |
#define | SNTP_PORT LWIP_IANA_PORT_SNTP |
SNTP server port. More... | |
#define | SNTP_CHECK_RESPONSE 0 |
Sanity check: Define this to. More... | |
#define | SNTP_COMP_ROUNDTRIP 0 |
Enable round-trip delay compensation. More... | |
#define | SNTP_STARTUP_DELAY 0 |
According to the RFC, this shall be a random delay between 1 and 5 minutes (in milliseconds) to prevent load peaks. More... | |
#define | SNTP_STARTUP_DELAY_FUNC (LWIP_RAND() % 5000) |
If you want the startup delay to be a function, define this to a function (including the brackets) and define SNTP_STARTUP_DELAY to 1. More... | |
#define | SNTP_RECV_TIMEOUT 15000 |
SNTP receive timeout - in milliseconds Also used as retry timeout - this shouldn't be too low. More... | |
#define | SNTP_UPDATE_DELAY 3600000 |
SNTP update delay - in milliseconds Default is 1 hour. More... | |
#define | SNTP_GET_SYSTEM_TIME(sec, us) do { (sec) = 0; (us) = 0; } while(0) |
SNTP macro to get system time, used with SNTP_CHECK_RESPONSE >= 2 to send in request and compare in response. More... | |
#define | SNTP_RETRY_TIMEOUT SNTP_RECV_TIMEOUT |
Default retry timeout (in milliseconds) if the response received is invalid. More... | |
#define | SNTP_RETRY_TIMEOUT_MAX (SNTP_RETRY_TIMEOUT * 10) |
Maximum retry timeout (in milliseconds). More... | |
#define | SNTP_RETRY_TIMEOUT_EXP 1 |
Increase retry timeout with every retry sent Default is on to conform to RFC. More... | |
#define | SNTP_MONITOR_SERVER_REACHABILITY 1 |
Keep a reachability shift register per server Default is on to conform to RFC. More... | |
SNTP client options list.
Definition in file sntp_opts.h.