From ccbda8895aee2a96a2a9fa327bdd275816955ab7 Mon Sep 17 00:00:00 2001
From: Grigory Fadeev <10079765+c0ffee2code@users.noreply.github.com>
Date: Sat, 14 Feb 2026 17:21:36 +0100
Subject: [PATCH] sdcard: Send stop bit after multi-block read/write.

Signed-off-by: Grigory Fadeev <10079765+c0ffee2code@users.noreply.github.com>
---
 micropython/drivers/storage/sdcard/sdcard.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/micropython/drivers/storage/sdcard/sdcard.py b/micropython/drivers/storage/sdcard/sdcard.py
index 3df4788a2..99d251d71 100644
--- a/micropython/drivers/storage/sdcard/sdcard.py
+++ b/micropython/drivers/storage/sdcard/sdcard.py
@@ -154,7 +154,7 @@ def cmd(self, cmd, arg, crc, final=0, release=True, skip1=False):
         buf[2] = arg >> 16
         buf[3] = arg >> 8
         buf[4] = arg
-        buf[5] = crc
+        buf[5] = crc | 0x01  # ensure stop bit is always set
         self.spi.write(buf)
 
         if skip1: