Fix for 656a33e

Author: dok-net

cores/esp8266/core_esp8266_postmortem.cpp

@@ -245,12 +245,12 @@ static void print_stack(uint32_t start, uint32_t end) {
     }
 }
 
-static void ICACHE_RAM_ATTR uart_write_char_d(char c) {
+static void IRAM_ATTR uart_write_char_d(char c) {
     uart0_write_char_d(c);
     uart1_write_char_d(c);
 }
 
-static void ICACHE_RAM_ATTR uart0_write_char_d(char c) {
+static void IRAM_ATTR uart0_write_char_d(char c) {
     while (((USS(0) >> USTXC) & 0xff)) { }
 
     if (c == '\n') {
@@ -259,7 +259,7 @@ static void ICACHE_RAM_ATTR uart0_write_char_d(char c) {
     USF(0) = c;
 }
 
-static void ICACHE_RAM_ATTR uart1_write_char_d(char c) {
+static void IRAM_ATTR uart1_write_char_d(char c) {
     while (((USS(1) >> USTXC) & 0xff) >= 0x7e) { }
 
     if (c == '\n') {

cores/esp8266/uart.cpp

@@ -954,13 +954,13 @@ uart_write_char_delay(const int uart_nr, char c)
 
 }
 
-static void ICACHE_RAM_ATTR
+static void IRAM_ATTR
 uart0_write_char(char c)
 {
     uart_write_char_delay(0, c);
 }
 
-static void ICACHE_RAM_ATTR
+static void IRAM_ATTR
 uart1_write_char(char c)
 {
     uart_write_char_delay(1, c);