From 2d7b13c540a73f4f4b77742db19a1b8666a480d7 Mon Sep 17 00:00:00 2001
From: bcostm <bco.stm@gmail.com>
Date: Fri, 18 May 2018 14:26:26 +0200
Subject: [PATCH] STM32 SPI: fix NSS pin configuration

---
 targets/TARGET_STM/stm_spi_api.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/targets/TARGET_STM/stm_spi_api.c b/targets/TARGET_STM/stm_spi_api.c
index 73d632c45c..b4a71e7bd1 100644
--- a/targets/TARGET_STM/stm_spi_api.c
+++ b/targets/TARGET_STM/stm_spi_api.c
@@ -163,6 +163,7 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
     spiobj->pin_ssel = ssel;
     if (ssel != NC) {
         pinmap_pinout(ssel, PinMap_SPI_SSEL);
+        handle->Init.NSS = SPI_NSS_HARD_OUTPUT;
     } else {
         handle->Init.NSS = SPI_NSS_SOFT;
     }