fix: Fixes ESP32 and ESP32-S2 uartGetBaudrate() with CPU Freq lower t…

…han 80MHz
espressif · Feb 17, 2024 · 886e898 · 886e898
1 parent 958da19
commit 886e898
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/cores/esp32/esp32-hal-uart.c b/cores/esp32/esp32-hal-uart.c
@@ -478,6 +478,12 @@ uint32_t uartGetBaudRate(uart_t* uart)
 
     UART_MUTEX_LOCK();
     uint32_t baud_rate = uart_ll_get_baudrate(UART_LL_GET_HW(uart->num));
+#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2
+    uint32_t Freq = getApbFrequency()/1000000;
+    if (Freq < 80) {
+        baud_rate = baud_rate / (80 / Freq);
+     }
+#endif
     UART_MUTEX_UNLOCK();
     return baud_rate;
 }