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-rw-r--r--os/hal/platforms/LPC111x/serial_lld.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/os/hal/platforms/LPC111x/serial_lld.c b/os/hal/platforms/LPC111x/serial_lld.c
index f0990b671..f3e7d5e31 100644
--- a/os/hal/platforms/LPC111x/serial_lld.c
+++ b/os/hal/platforms/LPC111x/serial_lld.c
@@ -233,6 +233,8 @@ void sd_lld_init(void) {
#if USE_LPC111x_UART0
sdObjectInit(&SD1, NULL, notify1);
SD1.uart = LPC_UART;
+ LPC_IOCON->PIO0_6 = 0xC1; /* RDX without resistors. */
+ LPC_IOCON->PIO0_7 = 0xC1; /* TDX without resistors. */
#endif
}