Fix MSB check in Xilinx Spartan slave serial mode

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>

diff --git a/common/spartan2.c b/common/spartan2.c
index ef107bc..2f1ea2c 100644 (file)
--- a/common/spartan2.c
+++ b/common/spartan2.c
@@ -441,7 +441,7 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
        int ret_val = FPGA_FAIL;        /* assume the worst */
        Xilinx_Spartan2_Slave_Serial_fns *fn = desc->iface_fns;
        int i;
-       char  val;
+       unsigned char val;
 
        PRINTF ("%s: start with interface functions @ 0x%p\n",
                        __FUNCTION__, fn);

diff --git a/common/spartan3.c b/common/spartan3.c
index 56a172e..d329e70 100644 (file)
--- a/common/spartan3.c
+++ b/common/spartan3.c
@@ -446,7 +446,7 @@ static int Spartan3_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
        int ret_val = FPGA_FAIL;        /* assume the worst */
        Xilinx_Spartan3_Slave_Serial_fns *fn = desc->iface_fns;
        int i;
-       char  val;
+       unsigned char val;
 
        PRINTF ("%s: start with interface functions @ 0x%p\n",
                        __FUNCTION__, fn);