Merge pull request #12342 from fkjagodzinski/fix-nxp-hal_fpga

LPC55S69: Fix UART & GPIO HAL to pass FPGA CI test shield tests

Author: 0xc0170

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC/serial_api.c

@@ -1,5 +1,5 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
+ * Copyright (c) 2006-2020 ARM Limited
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -189,10 +189,10 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b
 static inline void uart_irq(uint32_t transmit_empty, uint32_t receive_not_empty, uint32_t index)
 {
     if (serial_irq_ids[index] != 0) {
-        if (transmit_empty)
+        if (transmit_empty && (uart_addrs[index]->FIFOINTENSET & kUSART_TxLevelInterruptEnable))
             irq_handler(serial_irq_ids[index], TxIrq);
 
-        if (receive_not_empty)
+        if (receive_not_empty && (uart_addrs[index]->FIFOINTENSET & kUSART_RxLevelInterruptEnable))
             irq_handler(serial_irq_ids[index], RxIrq);
     }
 }

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC55S69/TARGET_LPCXpresso/PeripheralPins.c

@@ -16,3 +16,24 @@
 
 #include "PeripheralPins.h"
 #include "PeripheralPinMaps.h"
+
+// List of GPIOs with limited functionality
+const PinList *pinmap_gpio_restricted_pins()
+{
+    static const PinName pins[] = {
+        A4,   // fixed pull-up (for I2C)
+        A5,   // fixed pull-up (for I2C)
+        D5,   // fixed pull-up (for LED)
+        D3,   // fixed pull-up (for LED)
+        D4,   // fixed pull-up (for LED)
+        D7,   // fixed pull-up
+        D15,  // fixed pull-up (for I2C)
+        D14   // fixed pull-up (for I2C)
+    };
+
+    static const PinList pin_list = {
+        sizeof(pins) / sizeof(pins[0]),
+        pins
+    };
+    return &pin_list;
+}