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| author | Matt Baker <baker.matt.j@gmail.com> | 2019-04-06 15:12:51 -0700 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2019-04-06 20:53:15 -0400 |
| commit | e83071c9fef2d1b347fec4aa41650fe0950c60f8 (patch) | |
| tree | 1638503857f0ad7b39db9ce35c59e48a1936b567 /src/lpc176x/usbserial.c | |
| parent | 04adde9a021d7c25bbf8f3011dc432893c99d4db (diff) | |
| download | kutter-e83071c9fef2d1b347fec4aa41650fe0950c60f8.tar.gz kutter-e83071c9fef2d1b347fec4aa41650fe0950c60f8.tar.xz kutter-e83071c9fef2d1b347fec4aa41650fe0950c60f8.zip | |
lpc176x: force minimum usb disconnect time
Fixes GitHub Issue #1499. Resolves USB hang by forcing a minimum
USB disconnection time at boot.
Signed-off-by: Matt Baker <baker.matt.j@gmail.com>
Diffstat (limited to 'src/lpc176x/usbserial.c')
| -rw-r--r-- | src/lpc176x/usbserial.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lpc176x/usbserial.c b/src/lpc176x/usbserial.c index 18466da7..b2e67467 100644 --- a/src/lpc176x/usbserial.c +++ b/src/lpc176x/usbserial.c @@ -277,6 +277,8 @@ usbserial_init(void) gpio_peripheral(GPIO(0, 30), 1, 0); gpio_peripheral(GPIO(0, 29), 1, 0); gpio_peripheral(GPIO(2, 9), 1, 0); + // enforce a minimum time bus is disconnected before connecting + udelay(5000); // setup endpoints realize_endpoint(EP0OUT, USB_CDC_EP0_SIZE); realize_endpoint(EP0IN, USB_CDC_EP0_SIZE); |