SPI RAM error

Console output

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x33 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0010,len:4
load:0x3fff0014,len:5528
load:0x40078000,len:0
ho 12 tail 0 room 4
load:0x40078000,len:13508
entry 0x40079004
W (73) rtc_clk: Potentially bogus XTAL frequency: 35 MHz, guessing 40 MHz
W (79) rtc_clk: Possibly invalid CONFIG_ESP32_XTAL_FREQ setting (40MHz). Detected 40 MHz.
I (45) boot: ESP-IDF v3.0-dev-782-ge6afe28b-dirty 2nd stage bootloader
I (45) boot: compile time 22:24:46
I (59) boot: Enabling RNG early entropy source...
I (59) boot: SPI Speed      : 40MHz
I (59) boot: SPI Mode       : DIO
I (62) boot: SPI Flash Size : 4MB
I (66) boot: Partition Table:
I (70) boot: ## Label            Usage          Type ST Offset   Length
I (77) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (85) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (92) boot:  2 factory          factory app      00 00 00010000 00100000
I (100) boot: End of partition table
I (104) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x08dbc ( 36284) map
I (126) esp_image: segment 1: paddr=0x00018de4 vaddr=0x3ffb0000 size=0x01f9c (  8092) load
I (129) esp_image: segment 2: paddr=0x0001ad88 vaddr=0x40080000 size=0x00400 (  1024) load
0x40080000: _iram_start at D:/Devel/esp-idf/components/freertos/xtensa_vectors.S:1675

I (133) esp_image: segment 3: paddr=0x0001b190 vaddr=0x40080400 size=0x04e80 ( 20096) load
I (150) esp_image: segment 4: paddr=0x00020018 vaddr=0x400d0018 size=0x12bcc ( 76748) map
0x400d0018: _stext at ??:?

I (177) esp_image: segment 5: paddr=0x00032bec vaddr=0x40085280 size=0x06938 ( 26936) load
0x40085280: spi_flash_mmap_pages at D:/Devel/esp-idf/components/spi_flash/flash_mmap.c:200 (discriminator 3)

I (189) esp_image: segment 6: paddr=0x0003952c vaddr=0x400c0000 size=0x00000 (     0) load
I (196) boot: Loaded app from partition at offset 0x10000
I (196) boot: Disabling RNG early entropy source...
I (200) spiram: SPI RAM mode: flash 40m sram 40m
I (203) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (211) cpu_start: Pro cpu up.
I (214) cpu_start: Starting app cpu, entry point is 0x40080ff8
0x40080ff8: call_start_cpu1 at D:/Devel/esp-idf/components/esp32/cpu_start.c:219

I (0) cpu_start: App cpu up.
I (1113) spiram: SPI SRAM memory test OK
I (1114) heap_init: Initializing. RAM available for dynamic allocation:
I (1114) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (1120) heap_init: At 3FFB27C0 len 0002D840 (182 KiB): DRAM
I (1127) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (1133) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (1140) heap_init: At 4008BBB8 len 00014448 (81 KiB): IRAM
I (1146) cpu_start: Pro cpu start user code
I (1151) spiram: Adding pool of 4096K of external SPI memory to heap allocator
I (165) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
Hello world!
This is ESP32 chip with 2 CPU cores, WiFi/BT/BLE, silicon revision 1,
4MB external flash
SPI RAM size: 4194304
Direct, fill:
First address: 0x3f800000 .....................Last address: 0x3fa00000
Direct, check:
.55..55..55..55..55..55..55..55..55..55..55..55..55..55..55..55..55..55..55..55..55.Last address: 0x3fa00000
Heap_caps, malloc:
Guru Meditation Error of type LoadStoreAlignment occurred on core  0. Exception was unhandled.
Register dump:
PC      : 0x40085bf1  PS      : 0x00060e33  A0      : 0x80088044  A1      : 0x3ffb4540
0x40085bf1: uxPortCompareSet at D:/Devel/esp-idf/components/freertos/tasks.c:4482
 (inlined by) vPortCPUAcquireMutexIntsDisabled at D:/Devel/esp-idf/components/freertos/portmux_impl.h:86
 (inlined by) vTaskEnterCritical at D:/Devel/esp-idf/components/freertos/tasks.c:4126

A2      : 0x55555555  A3      : 0x00000000  A4      : 0x3ffb4550  A5      : 0x00000000
A6      : 0x3ffae8fc  A7      : 0x00000000  A8      : 0x0000cdcd  A9      : 0x0000cdcd
A10     : 0xb33fffff  A11     : 0x0000abab  A12     : 0x3ffb4833  A13     : 0x00000001
A14     : 0x00060e20  A15     : 0x00000000  SAR     : 0x00000004  EXCCAUSE: 0x00000009
EXCVADDR: 0x55555555  LBEG    : 0x4008b69d  LEND    : 0x4008b6ad  LCOUNT  : 0xfffffffb
0x4008b69d: strlen at /home/jeroen/esp8266/esp32/newlib_xtensa-2.2.0-bin/newlib_xtensa-2.2.0/xtensa-esp32-elf/newlib/libc/machine/xte
nsa/../../../../.././newlib/libc/machine/xtensa/strlen.S:84

0x4008b6ad: strlen at /home/jeroen/esp8266/esp32/newlib_xtensa-2.2.0-bin/newlib_xtensa-2.2.0/xtensa-esp32-elf/newlib/libc/machine/xte
nsa/../../../../.././newlib/libc/machine/xtensa/strlen.S:96


Backtrace: 0x40085bf1:0x3ffb4540 0x40088041:0x3ffb4560 0x40083f5b:0x3ffb4580 0x400d4a83:0x3ffb45a0 0x400d0853:0x3ffb45d0
0x40085bf1: uxPortCompareSet at D:/Devel/esp-idf/components/freertos/tasks.c:4482
 (inlined by) vPortCPUAcquireMutexIntsDisabled at D:/Devel/esp-idf/components/freertos/portmux_impl.h:86
 (inlined by) vTaskEnterCritical at D:/Devel/esp-idf/components/freertos/tasks.c:4126

0x40088041: multi_heap_malloc_impl at D:/Devel/esp-idf/components/heap/multi_heap.c:344 (discriminator 1)

0x40083f5b: heap_caps_malloc at D:/Devel/esp-idf/components/heap/heap_caps.c:123

0x400d4a83: app_main at D:/Devel/esp-projects/hello_world/main/hello_world_main.c:54

0x400d0853: main_task at D:/Devel/esp-idf/components/esp32/cpu_start.c:403


Rebooting...

hello_world_main.c

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_heap_caps.h"
#include "esp_spi_flash.h"
#include "esp_spiram.h"
#include <string.h>
#include <time.h>

#define BUF_SIZE 2*1024*1024

void app_main()
{
    printf("Hello world!\n");

    /* Print chip information */
    esp_chip_info_t chip_info;
    esp_chip_info(&chip_info);
    printf("This is ESP32 chip with %d CPU cores, WiFi%s%s, ",
            chip_info.cores,
            (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
            (chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "");

    printf("silicon revision %d, \n", chip_info.revision);

   printf("%dMB %s flash\n", spi_flash_get_chip_size() / (1024 * 1024),
            (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "embedded" : "external");
   printf("SPI RAM size: %d\n",esp_spiram_get_size());
	
	uint8_t* buf1;
	int i;
	
	uint8_t testb=0x55;
	printf("Direct, fill:\n");
	buf1 = (uint8_t *)0x3f800000;
	printf("First address: %p ",buf1);
	for (i=0; i < BUF_SIZE; i++) {
		if (i % 100000==0) printf(".");
      *buf1++ = testb;
   } 
	printf("Last address: %p\n",buf1);
	
	printf("Direct, check:\n");
	buf1 = (uint8_t *)0x3f800000;
	for (i=0; i < BUF_SIZE; i++) {
		if (i % 100000==0) printf(".%x.",*buf1);
		if (*buf1 != testb)  printf("Error at %d\n",i);
      buf1++;
   } 
	printf("Last address: %p\n",buf1);
	
	printf("Heap_caps, malloc:\n");
	buf1=(uint8_t*)heap_caps_malloc(BUF_SIZE, MALLOC_CAP_SPIRAM);
	//buf1=(uint8_t*)malloc(BUF_SIZE);
	if (buf1!=NULL) {
		for (i=0; i<=BUF_SIZE; i++) {
			printf("i: %d\n",i);
			buf1[i]=0x55;
		}
	} else printf("Malloc failed\n");

	for (int i = 10; i >= 0; i--) {
        printf("Restarting in %d seconds...\n", i);
        vTaskDelay(1000 / portTICK_PERIOD_MS);
    }
    printf("Restarting now.\n");
    fflush(stdout);
    esp_restart();
}