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Altera_Forum's avatar
Altera_Forum
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21 years ago

problem of "if" condition

I wrote a program to process data from PC through uart, but there is something wrong. <div class='quotetop'>QUOTE </div> --- Quote Start --- main() { ...... init_uart0(); ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Hi,

define uart0_rbuf_out_cnt and uart0_rbuf_in_cnt variable as volatile, for example:

volatile int uart0_rbuf_out_cnt

if not, the compiler optimize these variables because they aren&#39;t managed in the main program...