spi_flash_write/spi_flash_read question

[espressif]

spi_flash_write/spi_flash_read question

Please post your codes somewhere, we will check about this.

[ly0]

I fixed this problem, it's my fault.
but a new problem occurred, after I called spi_flash_write to 0x3c, spi_flash_read can not read the right thing.

extern char drcom_user[];
extern char drcom_pass[];
extern uint64_t drcom_mac;

void ICACHE_FLASH_ATTR
iprint_data(uint8_t* buf, uint16_t len)
{
    uint16_t i;
    uint8_t *ptr = buf;
    for(i = 0; i < len; i++)
    {
        printf("%02x ", *ptr++);
    }
    printf(" \n");
}

void ICACHE_FLASH_ATTR
save_drcom_params(const char* username, const char* password, const char* mac)
{
    printf("[*] input data: username=%s, password=%s, mac=%s\n", username, password, mac);
    char buff[64] = {0};
    int result = -1;
    char* bar;
    uint64_t foo;
    strcpy(buff, username);
    strcpy(buff + 33, password);
    foo = strtoull(mac, &bar, 16);
    *(uint64_t *)(buff + 33 + 17) = foo;
    result = spi_flash_write(0x3C, (uint32*) buff, 64);
    iprint_data(buff, 64);
    printf("[*] write return %d %s(%d)-%s \n", result, __FILE__, __LINE__, __FUNCTION__);
}

void ICACHE_FLASH_ATTR
load_drcom_params()
{
    char buff[64] = {0};
    int result = -1;
    result = spi_flash_read(0x3c, (uint32*)buff, 64);
    iprint_data(buff, 64);
    printf("[*] read result %d %s(%d)-%s \n", result, __FILE__, __LINE__, __FUNCTION__);
    sprintf(drcom_user, "%s", buff);
    printf("[*] drcom_user=%s success %s(%d)-%s \n", drcom_user, __FILE__, __LINE__, __FUNCTION__);
    sprintf(drcom_pass, "%s", buff + 33);
    printf("[*] drcom_pass=%s success %s(%d)-%s \n", drcom_pass, __FILE__, __LINE__, __FUNCTION__);
    drcom_mac = *(uint64_t *)(buff + 33 + 17);
    printf("[*] drcom_mac done %s(%d)-%s \n", __FILE__, __LINE__, __FUNCTION__);
}extern char drcom_user[];
extern char drcom_pass[];
extern uint64_t drcom_mac;

void ICACHE_FLASH_ATTR
iprint_data(uint8_t* buf, uint16_t len)
{
    uint16_t i;
    uint8_t *ptr = buf;
    for(i = 0; i < len; i++)
    {
        printf("%02x ", *ptr++);
    }
    printf(" \n");
}

void ICACHE_FLASH_ATTR
save_drcom_params(const char* username, const char* password, const char* mac)
{
    printf("[*] input data: username=%s, password=%s, mac=%s\n", username, password, mac);
    char buff[64] = {0};
    int result = -1;
    char* bar;
    uint64_t foo;
    strcpy(buff, username);
    strcpy(buff + 33, password);
    foo = strtoull(mac, &bar, 16);
    *(uint64_t *)(buff + 33 + 17) = foo;
    result = spi_flash_write(0x3C, (uint32*) buff, 64);
    iprint_data(buff, 64);
    printf("[*] write return %d %s(%d)-%s \n", result, __FILE__, __LINE__, __FUNCTION__);
}

void ICACHE_FLASH_ATTR
load_drcom_params()
{
    char buff[64] = {0};
    int result = -1;
    result = spi_flash_read(0x3c, (uint32*)buff, 64);
    iprint_data(buff, 64);
    printf("[*] read result %d %s(%d)-%s \n", result, __FILE__, __LINE__, __FUNCTION__);
    sprintf(drcom_user, "%s", buff);
    printf("[*] drcom_user=%s success %s(%d)-%s \n", drcom_user, __FILE__, __LINE__, __FUNCTION__);
    sprintf(drcom_pass, "%s", buff + 33);
    printf("[*] drcom_pass=%s success %s(%d)-%s \n", drcom_pass, __FILE__, __LINE__, __FUNCTION__);
    drcom_mac = *(uint64_t *)(buff + 33 + 17);
    printf("[*] drcom_mac done %s(%d)-%s \n", __FILE__, __LINE__, __FUNCTION__);
}

[] Now: key:username value:test[] Now: key:password value:test[] Now: key:mac value:112233445566[_] Found, value=112233445566
[_] input data: username=test, password=test, mac=112233445566
74 65 73 74 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 74 65 73 74 00 00 00 00 00 00 00 00 00 00 00 00 00 66 55 44 33 22 11 00 00 00 00 00 00 00 00
[] write return 0 drcom_flash.c(37)-save_drcom_params
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[] read result 0 drcom_flash.c(47)-load_drcom_params
[] drcom_user= success drcom_flash.c(49)-load_drcom_params
[] drcom_pass= success drcom_flash.c(51)-load_drcom_params
[] drcom_mac done drcom_flash.c(53)-load_drcom_params

1.spi_flash_erase_sector(0x3C);
2.spi_flash_write(0x3C000, (uint32 *)buff, 64);
3.spi_flash_read(0x3C000, (uint32 *)buff, 64);

[ly0]

Thanks it worked.

[santanurahaman]

Hi,
I have tried the above solution for the same task and Its not working. I am not getting any output the code is sucking in spin_flash_write. i am using SDK version 0.9.4 and my code is.

Can you please help?

char temp[128];
void ICACHE_FLASH_ATTR
save_server_params(const char* serverip, const char* port)
{
char buff[25] = {0};
int result = -1;
uint8 serverSize = sizeof(serverip);
uint8 portSize = sizeof(port);
int size = 0;
os_sprintf(temp,"[] Save data: ServerIP=%s|%d, Port=%s|%d\n", serverip, port, serverSize, portSize);
ets_uart_printf(temp);
strcpy(buff, serverip);
strcpy(buff + 17, port);
result = spi_flash_write(0x3C000, (uint32) buff, 25);
os_sprintf(temp,">> %s",buff);
ets_uart_printf(temp);
os_sprintf(temp,"[*] write return %d %s(%d)-%s \n", result, FILE, LINE, FUNCTION);
ets_uart_printf(temp);
}

void ICACHE_FLASH_ATTR
load_server_params()
{
char buff[25] = {0};
int result = -1;
char ip[16],port[5];
result = spi_flash_read(0x3C000, (uint32_)buff, 25);
os_printf(">> %s",buff);
os_sprintf(temp,"[] read result %d %s(%d)-%s \n", result, FILE, LINE, FUNCTION);
ets_uart_printf(temp);
os_sprintf(ip, "%s", buff);
ets_uart_printf(temp);
os_sprintf(temp,"[] serverIP=%s success %s(%d)-%s \n", ip, FILE, LINE, FUNCTION);
ets_uart_printf(temp);
os_sprintf(port, "%s", buff + 17);
ets_uart_printf(temp);
os_sprintf(temp,"[_] port=%s success %s(%d)-%s \n", port, FILE, LINE, FUNCTION);
ets_uart_printf(temp);
}

[ly0]

@santanurahaman
Your buffer size should be multiples of 4 bytes, if I remember correctly..
P.S. you should post your data within YOUR CODES, it makes easy to read.

[santanurahaman]

@ly0
Thanks for the reply.

The data is
serverip = 192.168.10.112
port = 8080