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-rw-r--r--firmware/microblaze/lib/spi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/firmware/microblaze/lib/spi.c b/firmware/microblaze/lib/spi.c
index 937397df6..bef808e57 100644
--- a/firmware/microblaze/lib/spi.c
+++ b/firmware/microblaze/lib/spi.c
@@ -43,7 +43,7 @@ spi_transact(bool readback, int slave, uint32_t data, int length, uint32_t flags
spi_wait();
// Tell it which SPI slave device to access
- spi_regs->ss = slave & 0xff;
+ spi_regs->ss = slave & 0xffff;
// Data we will send
spi_regs->txrx0 = data;