Upgrade firmware from gateway to node over using nRF Connect SDK

RE: Upgrade firmware from gateway to node over using nRF Connect SDK

Anirudh Agarkhed — Fri, 15 Jan 2021 16:02:04 GMT

Fixed the issue. In that snippet, used CBOR Byte String encode instead of text string encode, and converted the firmware_hash_sha to upper case hex representation (i.e. 0xae to 0xAE). TEST and Confirm swap types are working now. Thank you for spending time on the issue.

RE: Upgrade firmware from gateway to node over using nRF Connect SDK

Simon — Fri, 15 Jan 2021 13:18:55 GMT

I'll look into this the upcoming Monday/Tuesday.

Best regards,

Simon

RE: Upgrade firmware from gateway to node over using nRF Connect SDK

Anirudh Agarkhed — Thu, 14 Jan 2021 08:15:56 GMT

I understood the steps to complete the DFU. As of now, I could do the steps "image upload", "image list", "reset" successfully. Now facing this issue - Image uploads successfully, and on "image list" command, I get both the slots listed. However when I send "image confirm" using following header and payload, state does not change to "pending":true, which would be required for the slot 1 image to boot up.

cbor_buf_writer_init(&writer, smp_cmd.payload, sizeof(smp_cmd.payload));
cbor_encoder_init(&cbor, &writer.enc, 0);
cbor_encoder_create_map(&cbor, &cbor_map, 2);

	
cbor_encode_text_stringz(&cbor_map, "confirm");
cbor_encode_boolean(&cbor_map, true);

cbor_encode_text_stringz(&cbor_map, "hash");
cbor_encode_text_string(&cbor_map, firmware_hash_sha, strlen(firmware_hash_sha));
	
cbor_encoder_close_container(&cbor, &cbor_map);

payload_len = (size_t)(writer.ptr - smp_cmd.payload);

smp_cmd.header.op = 2;
smp_cmd.header.flags = 0;
smp_cmd.header.len_h8 = (uint8_t)((payload_len >> 8) & 0xFF);
smp_cmd.header.len_l8 = (uint8_t)((payload_len >> 0) & 0xFF);
smp_cmd.header.group_h8 = 0;
smp_cmd.header.group_l8 = 1;
smp_cmd.header.seq = 0;
smp_cmd.header.id = 0;

What should be the header and payload for "image test" and "image confirm"?

RE: Upgrade firmware from gateway to node over using nRF Connect SDK

Simon — Thu, 14 Jan 2021 07:40:31 GMT

I tried to follow your points, but I did not understand what you're were trying to do. If you could add some explanations to each step, that would be nice.

I do not have too much in-depth knowldege about CBOR, but I think I know what needs to be done in order to achieve your goal: "uploading a firmware image and boot it, from Zephyr (NCS) to Zephyr (NCS) running nodes". I think you have to copy the function send_smp_echo() into several function, to make it possible to issue the commands image upload, image list, image test, reset and image confirm. In addition to the echo command.

Then you can store a .bin file with the image to be upload on the device (or external flash) with the central_dfu_smp sample and transfer it over BLE to another device with the smp_svr sample.

If you're unsure how to go about this, please ask, and I will do some more investigation and try to assist you.

Best regards,

Simon