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MIP client

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cpq committed 2022-08-20 00:03:15 +01:00
1 parent 101cc1a672
commit 9c3c4a6f4b
5 files changed
+105 -61
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examples/stm32/nucleo-f746zg-baremetal/main.c
+2 -33
View File
@@ -9,40 +9,10 @@
#define LED3 PIN('B', 14) // On-board LED pin (red)
#define BTN1 PIN('C', 13) // On-board user button
static uint64_t s_ticks, s_exti; // Counters, increased by IRQ handlers
static time_t s_boot_timestamp = 0; // Updated by SNTP
static struct mg_connection *s_sntp_conn = NULL; // SNTP connection
// We have no valid system time(), and we need it for TLS. Implement it
time_t time(time_t *tp) {
time_t t = s_boot_timestamp + (time_t) (mg_millis() / 1000);
if (tp != NULL) *tp = t;
return t;
}
// SNTP connection event handler. When we get a response from an SNTP server,
// adjust s_boot_timestamp. We'll get a valid time from that point on
static void sfn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
if (ev == MG_EV_SNTP_TIME) {
uint64_t t = *(uint64_t *) ev_data;
MG_INFO(("%lu SNTP: %lld ms from epoch", c->id, t));
s_boot_timestamp = (time_t) ((t - mg_millis()) / 1000);
c->is_closing = 1;
} else if (ev == MG_EV_CLOSE) {
s_sntp_conn = NULL;
}
(void) fn_data;
}
static void sntp_cb(void *param) { // SNTP timer function. Sync up time
struct mg_mgr *mgr = (struct mg_mgr *) param;
if (s_sntp_conn == NULL && s_boot_timestamp == 0) {
s_sntp_conn = mg_sntp_connect(mgr, NULL, sfn, NULL);
}
}
static uint64_t s_ticks, s_exti; // Counters, increased by IRQ handlers
static void blink_cb(void *arg) { // Blink periodically
MG_INFO(("ticks: %u", (unsigned) s_ticks));
// MG_INFO(("ticks: %u", (unsigned) s_ticks));
gpio_toggle(LED2);
(void) arg;
}
@@ -96,7 +66,6 @@ int main(void) {
mg_mgr_init(&mgr); // and attach it to the MIP interface
mg_log_set(MG_LL_DEBUG); // Set log level
mg_timer_add(&mgr, 1000, MG_TIMER_REPEAT, blink_cb, &mgr);
mg_timer_add(&mgr, 5000, MG_TIMER_REPEAT, sntp_cb, &mgr);
// Initialise Mongoose network stack
// Specify MAC address, and use 0 for IP, mask, GW - i.e. use DHCP