Explicitly disable UART IRQ on startup

9c36bfc0 · Raptor Engineering Development Team · ae742fff · 9c36bfc0
Commit 9c36bfc0 authored Apr 21, 2021 by Raptor Engineering Development Team
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kestrel/src/kestrel.c kestrel/src/kestrel.c +6 -0

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--- a/kestrel/src/kestrel.c
+++ b/kestrel/src/kestrel.c
@@ -3415,6 +3415,12 @@ int kestrel_init(void)
    hiomap_use_direct_access = 1;
    allow_flash_write = 1;

+#if (WITH_ZEPHYR)
+    // Make sure the UART interrupt is truly disabled
+    // Spurious UART IRQs have been observed without this!
+    irq_disable(UART_INTERRUPT);
+#endif
+
    gpio_init();

    display_character('0', 0); // STATUS CODE: 0