From 06a24a16f229360e470492c703bb5aa4ad369bb0 Mon Sep 17 00:00:00 2001
From: Michal Moskal <michal@moskal.me>
Date: Tue, 26 Mar 2019 15:09:58 -0700
Subject: [PATCH] Disable VBUS USB sensing   it messes up PA9 aka JACDAC TX

---
 usb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/usb.c b/usb.c
index 726e803..ddf590b 100644
--- a/usb.c
+++ b/usb.c
@@ -253,6 +253,11 @@ usb_cinit(void)
 	usbd_dev = usbd_init(&otgfs_usb_driver, &dev, &config, &bos, usb_strings, NUM_USB_STRINGS,
 			     usbd_control_buffer, sizeof(usbd_control_buffer));
 
+#if defined(BOARD_USB_VBUS_SENSE_DISABLED)
+	// disable VBUS sensing
+	OTG_FS_GCCFG &= ~(OTG_GCCFG_VBUSASEN | OTG_GCCFG_VBUSBSEN);
+#endif
+
 #elif defined(STM32F1)
 	rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
 	gpio_set(GPIOA, GPIO8);