Fixes baudrate with CPU Freq < 80MHz

SuGlider · SuGlider · commit 4024202270ec · 2021-12-20T16:07:39.000-03:00
diff --git a/cores/esp32/esp32-hal-uart.c b/cores/esp32/esp32-hal-uart.c
@@ -73,7 +73,7 @@ static uart_t _uart_bus_array[] = {
 // baudrate must be multiplied when CPU Frequency is lower than APB 80MHz
 uint32_t _get_effective_baudrate(uint32_t baudrate) 
 {
-    uint32_t Freq = getCpuFrequencyMhz();
+    uint32_t Freq = getApbFrequency()/1000000;
     if (Freq < 80) {
         return 80 / Freq * baudrate;
      }

Original file line number	Diff line number	Diff line change
`@@ -73,7 +73,7 @@ static uart_t _uart_bus_array[] = {`
`73`	`73`	`// baudrate must be multiplied when CPU Frequency is lower than APB 80MHz`
`74`	`74`	`uint32_t _get_effective_baudrate(uint32_t baudrate)`
`75`	`75`	`{`
`76`		`- uint32_t Freq = getCpuFrequencyMhz();`
	`76`	`+ uint32_t Freq = getApbFrequency()/1000000;`
`77`	`77`	`if (Freq < 80) {`
`78`	`78`	`return 80 / Freq * baudrate;`
`79`	`79`	`}`