The olen parameter (last parameter) can't be null. A hin that the StoreProhibted error is failing to write to a NULL pointer is that EXCVADDR (the address which lead to the exception) is 0x00000000. Try something like :urbanze wrote: Note: error in "write_string", I tried several values in the last parameter of this function, some give "store prohibited" error or nothing happens. I would also like to know what to put in the last parameter.
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int olen;
int r = mbedtls_write_string( ... , &olen);
printf("mbedtls_write_string result %d olen %d value %s\n", r, olen, gg);
The right instead of int olen is size_t olen, doing this worked properly.ESP_Angus wrote:The olen parameter (last parameter) can't be null. A hin that the StoreProhibted error is failing to write to a NULL pointer is that EXCVADDR (the address which lead to the exception) is 0x00000000. Try something like :urbanze wrote: Note: error in "write_string", I tried several values in the last parameter of this function, some give "store prohibited" error or nothing happens. I would also like to know what to put in the last parameter.
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int olen; int r = mbedtls_write_string( ... , &olen); printf("mbedtls_write_string result %d olen %d value %s\n", r, olen, gg);
and you should get a full picture of what's happening.
PS Please paste actual text into "code" tags (or on a site like pastebin.com) where possible, reading screenshots is quite fiddly.
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mbedtls_mpi x;
char bf[200];
extern "C" void app_main()
{
initArduino();
Serial.begin(115200);
uint32_t a;
size_t n = 0;
mbedtls_mpi_init(&x);
a = mbedtls_mpi_read_string(&x, 10, "18446744073709551616"); Serial.println(a);
a = mbedtls_mpi_mul_int(&x, &x, 652); Serial.println(a);
a = mbedtls_mpi_write_string(&x, 16, bf, sizeof(bf)-1, &n); Serial.println(a);
for (int i = 0; i < 30; i++)
{
Serial.printf("%c", bf[i]);
}
esp_deep_sleep(300000000);
}
