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Problem when trying to send 10 messages/second

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Hi. I'm new to XBee. I'm using XBee S2C programable as router and XBee S2C PRO as coordinator, all in transparent mode.

My router is programed to send a message each delay_ticks(25)[=0.1s], but I'm receiving 10 messages/second during 7 seconds and in the 8th I receive 11. It seems that I'm accumulating a delay during 7s that allows an extra data to be sent each 8s, without interfering with the following second.

Is there a way to correct this mistake and make sure I always send 10 messages/s, like a more precise delay?

Piece of the code:
for (;;)
now = rtc_get_ms_uptime();

// Check that message has not been sent yet
if (now != before)
before = now;

// Send information packet if XBee has joined the network
if (joined)
env.length = sprintf(tx_buf, "%i", new);
if (new < 9)
new = 0;

// Delay T = 0.1s (1 tick corresponds to 4ms)

// Reset internal counters

Thanks for the input!
asked Jul 2, 2018 in XBee Programmable Development by iagreen New to the Community (0 points)

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