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µC/SNTPc does not require to be initialized. Although, if you want to use the µC/DNSc or µC/CLK features , make sure those modules are properly initialized.
Get time from NTP server
To retrieve the time from a ntp server, SNTPc_ReqRemoteTime must be call first. This will return a SNTP packet that can be computed by the function SNTPc_GetRemoteTime to retrieve the correct time. Since the SNTP packet is only use to know the offset between the local and the server
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TODO
Get time offset from SNTP server
TODONTP time, there is no time requierement for
Function name | Description |
|---|---|
| SNTPc_ReqRemoteTime() | Transmit a SNTP request to a NTP server and receive the answer. Return the SNTP packet received. |
| SNTPc_GetRemoteTime() | From a SNTP packet, compute the time in NTP format. |
| SNTPc_GetRoundTripDly_us() | From a SNTP packet, compute round trip delay in us. |
Shell reference
Prerequisite
µC/TCP-IP command module.
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Command | Description | Argument | Usage example |
|---|---|---|---|
| sntp_get | Request time from a SNTP server. | -4 <ipv4_address> (use IPv4 server address) -6 <ipv6_address> (use IPv6 server address) -d <domain_name> (use Domain name to get server address) | sntp_get -d sntp.server.com -t |
| sntp_help | Print help | none | sntp_help |