diff --git a/Examples/MAX32657/Bluetooth/BLE5_ctr/project.mk b/Examples/MAX32657/Bluetooth/BLE5_ctr/project.mk
index e41ee807593..f1de6ad0dda 100644
--- a/Examples/MAX32657/Bluetooth/BLE5_ctr/project.mk
+++ b/Examples/MAX32657/Bluetooth/BLE5_ctr/project.mk
@@ -28,7 +28,7 @@
 LIB_CORDIO = 1
 
 CORDIO_DIR = $(LIBS_DIR)/Packetcraft-ADI
-RF_PHY_DIR = $(LIBS_DIR)/RF-PHY
+LIB_PHY_DIR ?= $(LIBS_DIR)/RF-PHY
 
 # Cordio library options
 BLE_HOST = 0
diff --git a/Libraries/PeriphDrivers/Include/MAX32675/mxc_pins.h b/Libraries/PeriphDrivers/Include/MAX32675/mxc_pins.h
index 370041103fd..344dbe93c1c 100644
--- a/Libraries/PeriphDrivers/Include/MAX32675/mxc_pins.h
+++ b/Libraries/PeriphDrivers/Include/MAX32675/mxc_pins.h
@@ -44,6 +44,9 @@ extern const mxc_gpio_cfg_t gpio_cfg_uart0_flow;
 extern const mxc_gpio_cfg_t gpio_cfg_uart0_flow_disable;
 extern const mxc_gpio_cfg_t gpio_cfg_uart1;
 extern const mxc_gpio_cfg_t gpio_cfg_uart1_flow;
+
+extern const mxc_gpio_cfg_t gpio_cfg_hart;
+
 extern const mxc_gpio_cfg_t gpio_cfg_uart2;
 extern const mxc_gpio_cfg_t gpio_cfg_uart2_flow;
 extern const mxc_gpio_cfg_t gpio_cfg_uart2_flow_disable;
diff --git a/Libraries/PeriphDrivers/Include/MAX32680/mxc_pins.h b/Libraries/PeriphDrivers/Include/MAX32680/mxc_pins.h
index 45028d36480..5289f4de006 100644
--- a/Libraries/PeriphDrivers/Include/MAX32680/mxc_pins.h
+++ b/Libraries/PeriphDrivers/Include/MAX32680/mxc_pins.h
@@ -41,6 +41,8 @@ extern const mxc_gpio_cfg_t gpio_cfg_i2c2;
 extern const mxc_gpio_cfg_t gpio_cfg_i2c2b;
 extern const mxc_gpio_cfg_t gpio_cfg_i2c2c;
 
+extern const mxc_gpio_cfg_t gpio_cfg_hart;
+
 extern const mxc_gpio_cfg_t gpio_cfg_uart0;
 extern const mxc_gpio_cfg_t gpio_cfg_uart0_flow;
 extern const mxc_gpio_cfg_t gpio_cfg_uart0_flow_disable;
diff --git a/Libraries/PeriphDrivers/Source/AFE/hart_uart.c b/Libraries/PeriphDrivers/Source/AFE/hart_uart.c
index c1782bae8ec..4cd3fa8c259 100644
--- a/Libraries/PeriphDrivers/Source/AFE/hart_uart.c
+++ b/Libraries/PeriphDrivers/Source/AFE/hart_uart.c
@@ -193,12 +193,12 @@ static int hart_uart_init(mxc_uart_regs_t *uart, unsigned int baud, mxc_uart_clo
 
     switch (MXC_UART_GET_IDX(uart)) {
     case 0:
-        MXC_AFE_GPIO_Config(&gpio_cfg_uart0);
+        MXC_AFE_GPIO_Config(&gpio_cfg_hart);
         MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_UART0);
         break;
 
     case 2:
-        MXC_AFE_GPIO_Config(&gpio_cfg_uart2);
+        MXC_AFE_GPIO_Config(&gpio_cfg_hart);
         MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_UART2);
         break;
 
diff --git a/Libraries/PeriphDrivers/Source/SYS/pins_me16.c b/Libraries/PeriphDrivers/Source/SYS/pins_me16.c
index 5a897c98630..0fd55ce6960 100644
--- a/Libraries/PeriphDrivers/Source/SYS/pins_me16.c
+++ b/Libraries/PeriphDrivers/Source/SYS/pins_me16.c
@@ -55,6 +55,10 @@ const mxc_gpio_cfg_t gpio_cfg_uart1_flow = { MXC_GPIO0, (MXC_GPIO_PIN_30 | MXC_G
 const mxc_gpio_cfg_t gpio_cfg_uart1_flow_disable = { MXC_GPIO0, (MXC_GPIO_PIN_30 | MXC_GPIO_PIN_31), MXC_GPIO_FUNC_IN,
                                                      MXC_GPIO_PAD_NONE, MXC_GPIO_VSSEL_VDDIO, MXC_GPIO_DRVSTR_0 };
 
+// NOTE: UART2 mapping B is tied to HART modem in the AFE and cannot be moved.
+const mxc_gpio_cfg_t gpio_cfg_hart = { MXC_GPIO0, (MXC_GPIO_PIN_14 | MXC_GPIO_PIN_15), MXC_GPIO_FUNC_ALT2,
+                                       MXC_GPIO_PAD_NONE, MXC_GPIO_VSSEL_VDDIO, MXC_GPIO_DRVSTR_0 };
+
 const mxc_gpio_cfg_t gpio_cfg_uart2 = { MXC_GPIO1, (MXC_GPIO_PIN_8 | MXC_GPIO_PIN_9), MXC_GPIO_FUNC_ALT1,
                                         MXC_GPIO_PAD_NONE, MXC_GPIO_VSSEL_VDDIO, MXC_GPIO_DRVSTR_0 };
 const mxc_gpio_cfg_t gpio_cfg_uart2_flow = { MXC_GPIO1, (MXC_GPIO_PIN_10 | MXC_GPIO_PIN_11), MXC_GPIO_FUNC_ALT1,
diff --git a/Libraries/PeriphDrivers/Source/SYS/pins_me20.c b/Libraries/PeriphDrivers/Source/SYS/pins_me20.c
index ecb6a2f794e..f3247bfdc74 100644
--- a/Libraries/PeriphDrivers/Source/SYS/pins_me20.c
+++ b/Libraries/PeriphDrivers/Source/SYS/pins_me20.c
@@ -41,6 +41,10 @@ const mxc_gpio_cfg_t gpio_cfg_i2c1 = { MXC_GPIO0, (MXC_GPIO_PIN_16 | MXC_GPIO_PI
 const mxc_gpio_cfg_t gpio_cfg_i2c2 = { MXC_GPIO0, (MXC_GPIO_PIN_30 | MXC_GPIO_PIN_31), MXC_GPIO_FUNC_ALT1,
                                        MXC_GPIO_PAD_NONE, MXC_GPIO_VSSEL_VDDIO, MXC_GPIO_DRVSTR_0 };
 
+// NOTE: UART0 is tied to HART modem in the AFE and cannot be moved.
+const mxc_gpio_cfg_t gpio_cfg_hart = { MXC_GPIO0, (MXC_GPIO_PIN_0 | MXC_GPIO_PIN_1), MXC_GPIO_FUNC_ALT1,
+                                       MXC_GPIO_PAD_NONE, MXC_GPIO_VSSEL_VDDIO, MXC_GPIO_DRVSTR_0 };
+
 const mxc_gpio_cfg_t gpio_cfg_uart0 = { MXC_GPIO0, (MXC_GPIO_PIN_0 | MXC_GPIO_PIN_1), MXC_GPIO_FUNC_ALT1,
                                         MXC_GPIO_PAD_NONE, MXC_GPIO_VSSEL_VDDIO, MXC_GPIO_DRVSTR_0 };
 const mxc_gpio_cfg_t gpio_cfg_uart0_flow = { MXC_GPIO0, (MXC_GPIO_PIN_2 | MXC_GPIO_PIN_3), MXC_GPIO_FUNC_ALT2,
diff --git a/Libraries/libs.mk b/Libraries/libs.mk
index 121f83a9f53..9bafe060948 100644
--- a/Libraries/libs.mk
+++ b/Libraries/libs.mk
@@ -78,8 +78,9 @@ INIT_EXTENDED ?= 0
 # Default directory for libphy
 LIB_PHY_DIR ?= $(LIBS_DIR)/BlePhy
 
+BLE_API ?= Cordio
 # Include the Cordio Library
-CORDIO_DIR ?= $(LIBS_DIR)/Cordio
+CORDIO_DIR ?= $(LIBS_DIR)/$(BLE_API)
 include $(CORDIO_DIR)/platform/targets/maxim/build/cordio_lib.mk
 PROJ_CFLAGS += -D__CORDIO__