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Diffstat (limited to 'nuttx/configs/lpcxpresso-lpc1768/src/lpcxpresso_internal.h')
-rwxr-xr-xnuttx/configs/lpcxpresso-lpc1768/src/lpcxpresso_internal.h30
1 files changed, 23 insertions, 7 deletions
diff --git a/nuttx/configs/lpcxpresso-lpc1768/src/lpcxpresso_internal.h b/nuttx/configs/lpcxpresso-lpc1768/src/lpcxpresso_internal.h
index dce63cdff..9d9eb3863 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/src/lpcxpresso_internal.h
+++ b/nuttx/configs/lpcxpresso-lpc1768/src/lpcxpresso_internal.h
@@ -154,13 +154,29 @@
# define LPCXPRESSO_SD_CD (GPIO_INPUT | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN11)
#endif
-/* Base-board J4/J6 LPC1768
- * Signal Pin Pin
- * ------------------- ----- --------
- * PIO0_6-USB_CONNECT* 23 P0.21
- * USB_DM 36 USB_D-
- * USB_DP 37 USB_D+
- * PIO0_3-VBUS_SENSE 39 P0.5
+/* USB:
+ *
+ * Base-board J4/J6 LPC1768
+ * Signal Pin Pin
+ * ------------------- ----- --------
+ * USB_DM 36 P0.30/USB-D-
+ * USB_DP 37 P0.29/USB-D+
+ * N/C N/C P1.18/USB-UP-LED/PWM1.1/CAP1.0
+ * PIO1_3 (not used) 19 P1.30/VBUS/AD0.4
+ * N/C N/C P2.9/USB-CONNECT/RXD2 (See Notes)
+ * ------------------- ----- --------
+ * PIO0_6-USB_CONNECT* 23 P0.21/RI1/RD1
+ * PIO0_3-VBUS_SENSE 39 P0.5/I2SRX-WS/TD2/CAP2.1
+ *
+ * Noes:
+ * - The standard USB CONNECT (P0.9) provides USB D+ pullup on board the
+ * LPCXpresso card; it should be un-necessary to use the based board
+ * version of the pullup.
+ * - J14 must be set to permit GPIO control of the base board USB connect
+ * pin
+ * - The standard VBUS (P1.30) is not connected.
+ * - J12 must be set to permit GPIO control of the USB vbus sense pin
+ * - The standard USB LED (P1.18) is not connected.
*/
#define LPCXPRESSO_USB_CONNECT (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN21)