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Altera_Forum
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14 years ago

usleep() issue

Hello. In this code: fprintf(lcd_name, string1); usleep(2000000); fprintf(lcd_name, string2); second string should appear on LCD after 2 sec. But it appears without any delays! It's interes...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Or use a UART with a large enough hardware tx fifo to cover normal lines of debug output and then either discard or spin inside the 'transmit character' function.

Whatever you do, at some point the decision has to be made whether to

spin/sleep/discard when the tx buffer is full, having a single hardware fifo and very simple software might actually use the least resource!