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clk: Fix the overflow when setting ccount

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The multiplication will be overflow when using 160 or 240 MHz, this can lead the inaccuracy of log time stamp in startup.
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Wu Jian Gang
2019-02-20 17:12:15 +08:00
committed by bot
parent fa36433199
commit 4d3762a8df
2 changed files with 2 additions and 2 deletions
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components/esp32/clk.c
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@@ -136,7 +136,7 @@ void esp_clk_init(void)
rtc_clk_cpu_freq_set_config(&new_config);
// Re calculate the ccount to make time calculation correct.
XTHAL_SET_CCOUNT( XTHAL_GET_CCOUNT() * new_freq_mhz / old_freq_mhz );
XTHAL_SET_CCOUNT( (uint64_t)XTHAL_GET_CCOUNT() * new_freq_mhz / old_freq_mhz );
}
int IRAM_ATTR esp_clk_cpu_freq(void)