kheap_info and trace

[cortex-from-scratch] / main.c

diff --git a/main.c b/main.c
index b4ed64a..4104960 100644 (file)
--- a/main.c
+++ b/main.c
@@ -18,7 +18,9 @@
 #include <sys/mmap.h>
 
 #include <lib/regfunc.h>
+#include <lib/pool.h>
 #include <lib/stdio.h>
+#include <lib/string.h>
 #include <lib/tinyprintf.h>
 
 #include <drivers/uart.h>
@@ -29,6 +31,8 @@
 //#include <drivers/mk450_joystick.h>
 #include <drivers/st7735s.h>
 
+mem_pool_t kheap_pool;
+
 void main()
 {
 
@@ -42,14 +46,13 @@ void main()
        uart_init();
 
        /* TFT screen */
-       tft_init();
+       // tft_init();
        
        /* Cortex M* integrated systick, can be replaced
         * by the more accurate RTC.
        systick_init();
        */
        
-
        /* Set up a very small libc library */
        init_printf(NULL, putc);
 
@@ -60,8 +63,57 @@ void main()
        led_init();
 
        /* Real time clock */
-       //rtc_init();
+       rtc_init();
+
+       extern uint32_t * _beginofheap;
+       //printf("%p", &_beginofheap);
+       kpool_init(&kheap_pool, 0x10, 10, (uint32_t *) &_beginofheap);
+
+//     printf("%p\n", &kheap_pool);
+
+       char * string = (char *) kalloc(&kheap_pool);
+       char * string2 = (char *) kalloc(&kheap_pool);
+       char * string3 = (char *) kalloc(&kheap_pool);
+
+
+       memset(string, 0xFF, 0x10);
+       memset(string2, 0xEE, 0x10);
+       memset(string3, 0xDD, 0x10);
+
+       printf("%p\n", string);
+       printf("%p\n", string2);
+       printf("%p\n", string3);
+
+       kfree(&kheap_pool, string);
+
+       char * string6 = (char *) kalloc(&kheap_pool);
+
+
+       memset(string6, 0xCC, 0x10);
+//     char * string7 = (char *) kalloc(&kheap_pool);
+       printf("%p\n", string6);
+//     printf("%p\n", string7);
+
+
+       kfree(&kheap_pool, string2);
+
+       char * string7 = (char *) kalloc(&kheap_pool);
+       memset(string7, 0xBB, 0x10);
+
+
+       char * string8 = (char *) kalloc(&kheap_pool);
+       memset(string8, 0xAA, 0x10);
+
+       char * string9 = (char *) kalloc(&kheap_pool);
+       memset(string9, 0x99, 0x10);
+       //free(string);
+
+       kfree(&kheap_pool, string3);
+
+       //char * string2 = (char *) alloc();
        
+       //string2 = "taalb";
+
        /* Eeprom Driver
        eeprom_at24c_init();
        eeprom_test();