I am trying to make an ndef record using t4t, but it fails.
For example I'm trying to convert the example 'record_text' to work with t4t setup, and it always fail.
Is it even possible for t4t to work with ndef records ?.
My code : main.c
/*
* Copyright (c) 2021 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
*/
#include <zephyr/kernel.h>
#include <zephyr/sys/reboot.h>
#include <nfc_t2t_lib.h>
#include <nfc/ndef/msg.h>
#include <nfc_t4t_lib.h>
#include <nfc/ndef/text_rec.h>
#include <nfc/ndef/launchapp_rec.h>
// #include <nfc/ndef/launchapp_msg.h>
#include <nfc/t4t/ndef_file.h>
#include <dk_buttons_and_leds.h>
#define NDEF_MSG_BUF_SIZE 256
#define NFC_FIELD_LED DK_LED1
#define MAX_REC_COUNT 3
/** .. include_startingpoint_pkg_def_launchapp_rst */
/* Package: no.nordicsemi.android.nrftoolbox */
/* Text message in English with its language code. */
static const uint8_t en_payload[] = {
'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', '!'
};
static const uint8_t en_code[] = {'e', 'n'};
/* Text message in Norwegian with its language code. */
static const uint8_t no_payload[] = {
'H', 'a', 'l', 'l', 'o', ' ', 'V', 'e', 'r', 'd', 'e', 'n', '!'
};
static const uint8_t no_code[] = {'N', 'O'};
/* Text message in Polish with its language code. */
static const uint8_t pl_payload[] = {
'W', 'i', 't', 'a', 'j', ' ', 0xc5, 0x9a, 'w', 'i', 'e', 'c', 'i',
'e', '!'
};
static const uint8_t pl_code[] = {'P', 'L'};
static const uint8_t android_pkg_name[] = {
'n', 'o', '.', 'n', 'o', 'r', 'd', 'i', 'c', 's', 'e', 'm', 'i', '.', 'a', 'n', 'd', 'r',
'o', 'i', 'd', '.', 'n', 'r', 'f', 't', 'o', 'o', 'l', 'b', 'o', 'x' };
/* Buffer used to hold an NFC NDEF message. */
static uint8_t ndef_msg_buf[NDEF_MSG_BUF_SIZE];
void print_d(uint8_t* buf, uint8_t size){
int i = 0;
for(i = 0; i < size; i++){
printf("%x", buf[i]);
}
printf("\n");
for(i = 0; i < size; i++){
printf("%c", buf[i]);
}
printf("\n");
}
static void nfc_callback(void *context,
nfc_t4t_event_t event,
const uint8_t *data,
size_t data_length,
uint32_t flags)
{
ARG_UNUSED(context);
ARG_UNUSED(data);
ARG_UNUSED(data_length);
switch (event) {
case NFC_T4T_EVENT_FIELD_ON:
dk_set_led_on(NFC_FIELD_LED);
break;
case NFC_T4T_EVENT_FIELD_OFF:
dk_set_led_off(NFC_FIELD_LED);
break;
default:
break;
}
}
size_t len = sizeof(ndef_msg_buf);
static int welcome_msg_encode(uint8_t *buffer, uint32_t *len)
{
int err;
/* Create NFC NDEF text record description in English */
NFC_NDEF_TEXT_RECORD_DESC_DEF(nfc_en_text_rec,
UTF_8,
en_code,
sizeof(en_code),
en_payload,
sizeof(en_payload));
/* Create NFC NDEF text record description in Norwegian */
NFC_NDEF_TEXT_RECORD_DESC_DEF(nfc_no_text_rec,
UTF_8,
no_code,
sizeof(no_code),
no_payload,
sizeof(no_payload));
/* Create NFC NDEF text record description in Polish */
NFC_NDEF_TEXT_RECORD_DESC_DEF(nfc_pl_text_rec,
UTF_8,
pl_code,
sizeof(pl_code),
pl_payload,
sizeof(pl_payload));
NFC_NDEF_MSG_DEF(nfc_text_msg, MAX_REC_COUNT);
/* Add text records to NDEF text message */
err = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_text_msg),
&NFC_NDEF_TEXT_RECORD_DESC(nfc_en_text_rec));
if (err < 0) {
printk("Cannot add first record!\n");
return err;
}
err = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_text_msg),
&NFC_NDEF_TEXT_RECORD_DESC(nfc_no_text_rec));
if (err < 0) {
printk("Cannot add second record!\n");
return err;
}
err = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_text_msg),
&NFC_NDEF_TEXT_RECORD_DESC(nfc_pl_text_rec));
if (err < 0) {
printk("Cannot add third record!\n");
return err;
}
err = nfc_ndef_msg_encode(&NFC_NDEF_MSG(nfc_text_msg),
buffer,
len);
if (err < 0) {
printk("Cannot encode message!\n");
}
return err;
}
static int android_msg(uint8_t* buffer, uint8_t* len){
int err;
NFC_NDEF_MSG_DEF(my_msg, 5);
NFC_NDEF_ANDROID_LAUNCHAPP_RECORD_DESC_DEF(first_rec, android_pkg_name, sizeof(android_pkg_name));
if (err < 0) {
printk("Cannot add first record!\n");
return err;
}
err = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(my_msg),
&NFC_NDEF_ANDROID_LAUNCHAPP_RECORD_DESC(first_rec));
if (err < 0) {
printk("Cannot add second record!\n");
return err;
}
err = nfc_ndef_msg_encode(&NFC_NDEF_MSG(my_msg), buffer, len);
if (err) {
printk("Cannot set payload!\n");
}
return 0;
}
int main(void)
{
int err;
printk("Starting NFC Launch app example\n");
err = nfc_t4t_setup(nfc_callback, NULL);
if (err) {
printk("Cannot setup NFC T4T library!\n");
goto fail;
}
if (err) {
printk("Cannot encode message!\n");
goto fail;
}
/* Set created message as the NFC payload */
welcome_msg_encode(ndef_msg_buf, &len);
err = nfc_t4t_ndef_rwpayload_set(ndef_msg_buf, len);
print_d(ndef_msg_buf, len);
if (err) {
printk("Cannot set payload!\n");
goto fail;
}
/* Start sensing NFC field */
err = nfc_t4t_emulation_start();
if (err) {
printk("Cannot start emulation!\n");
goto fail;
}
printk("NFC configuration done\n");
return 0;
fail:
#if CONFIG_REBOOT
sys_reboot(SYS_REBOOT_COLD);
#endif /* CONFIG_REBOOT */
return err;
}
prj.conf :
# # Copyright (c) 2021 Nordic Semiconductor ASA # # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause # CONFIG_NCS_SAMPLES_DEFAULTS=y CONFIG_REBOOT=y CONFIG_DK_LIBRARY=y CONFIG_NFC_T4T_NRFXLIB=y CONFIG_NFC_NDEF=y CONFIG_NFC_NDEF_MSG=y CONFIG_NFC_NDEF_RECORD=y CONFIG_NFC_NDEF_URI_REC=y CONFIG_NFC_NDEF_LAUNCHAPP_REC=y CONFIG_NFC_NDEF_LAUNCHAPP_MSG=y CONFIG_NFC_NDEF_TEXT_RECORD=y
