stm32-h103: use proper HSE for USB

karlp · karlp · commit 90262eb88092 · 2019-04-21T21:50:42.000Z
HSI is out of spec for reliable USB operation, even though it sometimes works. stm32-h103 board has an 8Mhz external crystal which should therefore be used for any USB work. Originally reported as #192
diff --git a/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c b/examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c
@@ -238,7 +238,7 @@ int main(void)
 
 	usbd_device *usbd_dev;
 
-	rcc_clock_setup_in_hsi_out_48mhz();
+	rcc_clock_setup_in_hse_8mhz_out_72mhz();
 
 	rcc_periph_clock_enable(RCC_GPIOC);
 
diff --git a/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c b/examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c
@@ -258,7 +258,7 @@ int main(void)
 		}
 	}
 
-	rcc_clock_setup_in_hsi_out_48mhz();
+	rcc_clock_setup_in_hse_8mhz_out_72mhz();
 
 	rcc_periph_clock_enable(RCC_GPIOC);
 
diff --git a/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c b/examples/stm32/f1/stm32-h103/usb_iap/usbiap.c
@@ -259,7 +259,7 @@ int main(void)
 		}
 	}
 
-	rcc_clock_setup_in_hsi_out_48mhz();
+	rcc_clock_setup_in_hse_8mhz_out_72mhz();
 
 	rcc_periph_clock_enable(RCC_GPIOA);
 	rcc_periph_clock_enable(RCC_AFIO);

Original file line number	Diff line number	Diff line change
`@@ -258,7 +258,7 @@ int main(void)`
`258`	`258`	`}`
`259`	`259`	`}`
`260`	`260`
`261`		`- rcc_clock_setup_in_hsi_out_48mhz();`
	`261`	`+ rcc_clock_setup_in_hse_8mhz_out_72mhz();`
`262`	`262`
`263`	`263`	`rcc_periph_clock_enable(RCC_GPIOC);`
`264`	`264`
Original file line number	Diff line number	Diff line change
`@@ -259,7 +259,7 @@ int main(void)`
`259`	`259`	`}`
`260`	`260`	`}`
`261`	`261`
`262`		`- rcc_clock_setup_in_hsi_out_48mhz();`
	`262`	`+ rcc_clock_setup_in_hse_8mhz_out_72mhz();`
`263`	`263`
`264`	`264`	`rcc_periph_clock_enable(RCC_GPIOA);`
`265`	`265`	`rcc_periph_clock_enable(RCC_AFIO);`