USB: ensure interrupts are disabled while getting LPC serial number

diff --git a/src/libs/USBDevice/USBDevice/USBHAL_LPC17.cpp b/src/libs/USBDevice/USBDevice/USBHAL_LPC17.cpp
index 2bf3aab..436e0de 100644 (file)
--- a/src/libs/USBDevice/USBDevice/USBHAL_LPC17.cpp
+++ b/src/libs/USBDevice/USBDevice/USBHAL_LPC17.cpp
@@ -510,6 +510,8 @@ uint32_t USBHAL::getSerialNumber(int length, uint32_t *buf) {
     typedef void (*IAP)(uint32_t*, uint32_t*);\r
     IAP iap = (IAP) IAP_LOCATION;\r
 \r
+    __disable_irq();\r
+\r
     command[0] = 58;\r
 //     iprintf("Getting Serial...\n");\r
     iap(command, result);\r
@@ -520,6 +522,9 @@ uint32_t USBHAL::getSerialNumber(int length, uint32_t *buf) {
             buf[i] = result[i + 1];\r
         }\r
     }\r
+\r
+    __enable_irq();\r
+\r
     return i;\r
 }\r
 \r