Fix linker script for NVIC vector on RAM

keyboard/infinity/infinity.ld

@@ -9,7 +9,7 @@ MEMORY
 {
   /* Infinity blootloader uses 4KB */
   FLASH (rx) : ORIGIN = 4K, LENGTH = 128K - 4K
-  RAM (rwx) : ORIGIN = 0x1FFFE000, LENGTH = 16K
+  RAM (rwx) : ORIGIN = 0x1FFFE0F8, LENGTH = 16K - 0xF8
 }
 
 /* Linker script to place sections and symbol values. Should be used together

keyboard/infinity/main.cpp

@@ -5,25 +5,16 @@
 #include "PinNames.h"
 
 
-//DigitalOut led(PTA19);
-
 int main() {
     gpio_t led;
     gpio_init_out(&led, PTA19);
     while(1) {
-        gpio_write(&led, 1);
-        wait_ms(500);
-        gpio_write(&led, 0);
-        wait_ms(500);
-    }
-/*
-    SIM->SCGC6 |= SIM_SCGC5_PORTA_MASK;
-    PORTA->PCR[19] = PORT_PCR_SRE_MASK | PORT_PCR_DSE_MASK | PORT_PCR_MUX(1);
-    PTA->PDDR |= (1<<19);
-    PTA->PSOR |= (1<<19);
-    while(1) {
-        PTA->PTOR |= (1<<19);
         wait_ms(500);
+        uint32_t delay = 0xf;
+        while (delay--) {
+            uint32_t delay2 = 0xffff;
+            while (delay2--) ;
+        }
+        gpio_write(&led, !gpio_read(&led));
     }
-*/
 }

tool/mbed/mk20d50m.mk

@@ -41,5 +41,4 @@ INCLUDE_PATHS += \
 	-I$(MBED_DIR)/libraries/mbed/targets/hal/TARGET_Freescale \
 	-I$(MBED_DIR)/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_K20D50M
 
-LINKER_SCRIPT = $(MBED_DIR)/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/TOOLCHAIN_GCC_ARM/MK20D5.ld
-#LINKER_SCRIPT = infinity.ld
+LINKER_SCRIPT = infinity.ld