From 618b79f20744eab9a3d9a7343c5d65206fe2b55b Mon Sep 17 00:00:00 2001
From: Sven Willner <sven.willner@gmail.com>
Date: Wed, 5 Aug 2020 15:37:55 +0200
Subject: [PATCH] Bypass auto-boot when doing a nerve pinch

---
 sw/src/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sw/src/main.c b/sw/src/main.c
index c264799..932a47c 100644
--- a/sw/src/main.c
+++ b/sw/src/main.c
@@ -11,6 +11,8 @@
 
 struct ff_spi *spi;
 
+static int nerve_pinch(void);
+
 // ICE40UP5K bitstream images (with SB_MULTIBOOT header) are
 // 104250 bytes.  The SPI flash has 4096-byte erase blocks.
 // The smallest divisible boundary is 4096*26.
@@ -27,7 +29,7 @@ void isr(void)
 
     if (irqs & (1 << TIMER0_INTERRUPT)) {
         timer0_ev_pending_write(timer0_ev_pending_read());
-        if (dfu_getstate() == dfuIDLE) {
+        if (dfu_getstate() == dfuIDLE && !nerve_pinch()) {
             reboot();
             while (1)
                 ;