Changed ATmega168 port to ATmega328 on Uno R3 with DFR0259 RS485 shield (#784)

* Changed ATmega168 example for ATmega328 on Arduino Uno R3 with DFR0259 RS485 shield. Added ADC interface from BDK port and mapped to some AV objects. Removed MS/TP MAC address DIP switch GPIO and moved MS/TP configuration to AV objects. Added AV units property. Added some Uno R3 Digital Inputs and outputs mapped to some BV. Added AVR EEPROM from BDK port and mapped some non-volatile data including MAC address and max manager and baud rate, device ID and names and description and location.
2024-09-27 14:42:47 -05:00
parent 6e4034a92d
commit 4781582204
60 changed files with 2943 additions and 5661 deletions
@@ -0,0 +1,83 @@
+/**
+ * @brief The module handles CSTACK monitoring
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date 2009
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#include <stdint.h>
+#include "hardware.h"
+#include "stack.h"
+
+/* stack checking */
+#if defined(__GNUC__)
+extern uint8_t _end;
+extern uint8_t __stack;
+#endif
+
+#if defined(__GNUC__)
+#define STACK_CANARY (0xC5)
+void stack_init(void) __attribute__((naked)) __attribute__((section(".init1")));
+#endif
+
+void stack_init(void)
+{
+#if defined(__GNUC__)
+#if 0
+    uint8_t *p = &_end;
+
+    while (p <= &__stack) {
+        *p = STACK_CANARY;
+        p++;
+    }
+#else
+    __asm volatile("    ldi r30,lo8(_end)\n"
+                   "    ldi r31,hi8(_end)\n"
+                   "    ldi r24,lo8(0xc5)\n" /* STACK_CANARY = 0xc5 */
+                   "    ldi r25,hi8(__stack)\n"
+                   "    rjmp .cmp\n"
+                   ".loop:\n"
+                   "    st Z+,r24\n"
+                   ".cmp:\n"
+                   "    cpi r30,lo8(__stack)\n"
+                   "    cpc r31,r25\n"
+                   "    brlo .loop\n"
+                   "    breq .loop" ::);
+#endif
+#endif
+}
+
+unsigned stack_size(void)
+{
+#if defined(__GNUC__)
+    return (&__stack) - (&_end);
+#else
+    return 0;
+#endif
+}
+
+uint8_t stack_byte(unsigned offset)
+{
+#if defined(__GNUC__)
+    return *(&_end + offset);
+#else
+    offset = offset;
+    return 0;
+#endif
+}
+
+unsigned stack_unused(void)
+{
+    unsigned count = 0;
+#if defined(__GNUC__)
+    uint8_t *p = &_end;
+
+    while (p <= &__stack) {
+        if ((*p) != STACK_CANARY) {
+            count = p - (&_end);
+            break;
+        }
+        p++;
+    }
+#endif
+    return count;
+}