Kevin Braun
A general demonstration color etch-a-sketch program using the QVGA TFT with HX8347D controller, Orange Board. Saves touchscreen calibaration data saved in tft.ini. Creates /local/tft.ini if missing. Also included is an Ethernet NTP client to update the RTC. Assumes all other Orange Board devices attached: Text LCD, SDHC Flash, Ethernet.
Dependencies: EthernetNetIf TextLCD mbed
Diff: TinySTNP/TinySNTP.h
- Revision:
- 0:e065ca40f28a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TinySTNP/TinySNTP.h Mon Aug 01 16:29:58 2011 +0000
@@ -0,0 +1,53 @@
+/*
+ * mbed Tiny SNTP(NTP) Client
+ * Copyright (c) 2011 Hiroshi Suga
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+/** @file
+ * @brief Tiny DNS Resolver
+ */
+
+#ifndef TinySNTP_h
+#define TinySNTP_h
+
+#include <inttypes.h>
+
+//#define DEBUG
+
+#define NTP_PORT 123
+#define NTP_SRC_PORT 50420
+#define NTP_TIMESTAMP_DELTA 2208988800ull
+#define NTP_TIMEOUT 5000 // ms
+
+struct SNTPPacket {
+ uint8_t info;
+ uint8_t stratum;
+ uint8_t poll;
+ uint8_t precision;
+
+ uint32_t rootDelay;
+ uint32_t rootDispersion;
+ uint32_t refId;
+
+ uint32_t refTm_s;
+ uint32_t refTm_f;
+ uint32_t origTm_s;
+ uint32_t origTm_f;
+ uint32_t rxTm_s;
+ uint32_t rxTm_f;
+ uint32_t txTm_s;
+ uint32_t txTm_f;
+} __attribute__((packed));
+
+int createSntpRequest (char*);
+int getSntpResponse (const char*, uint32_t *time);
+
+/** resolv host by name
+ * @param name NTP server
+ * @param tim time (return)
+ * @return 0:success, -1:failue
+ */
+int ntpdate (const char* name, uint32_t *tim);
+
+#endif