Search found 19 matches

by joostn
Tue Jun 09, 2015 6:54 pm
Forum: ESP8266 SDK
Topic: Hostname (standard PC-192-168-xxx-xxx)
Replies: 26
Views: 15405

Re: Hostname (standard PC-192-168-xxx-xxx)

Agreed, this would be my #1 request. An IOT device should be accessible via a configurable host name, so I can configure my connected refrigerator via http://fridge.local/

I'm currently solving this by using my own LWIP but this is a pain to maintain between SDK upgrades.
by joostn
Mon Jun 08, 2015 3:40 pm
Forum: ESP8266 SDK
Topic: Multiple issues with wireless connectivity
Replies: 17
Views: 10438

Re: Multiple issues with wireless connectivity

Hi Faye, Some time ago I ran into similar problems with multicast, the ESP would sometimes not respond to IGMP Membership Queries. I've worked around that by just repeating IGMP Join messages every couple of seconds (as well as repeating ARP broadcast every few seconds). That was on sdk 0.9.5, I hav...
by joostn
Sun May 17, 2015 10:58 pm
Forum: ESP8266 SDK
Topic: Firmware protection
Replies: 8
Views: 5197

Re: Firmware protection

It's useless, people can still desolder the flash chip and read your firmware. There's simply no way to prevent that.
by joostn
Sat Feb 21, 2015 1:51 am
Forum: ESP8266 HDK
Topic: Wifi radio not working
Replies: 13
Views: 7932

Re: ADC damages Wifi radio?

Well I guess your firmware is writing to flash? You should make sure it does not touch flash blocks 7c to 7f.
by joostn
Fri Feb 20, 2015 5:24 pm
Forum: ESP8266 HDK
Topic: Wifi radio not working
Replies: 13
Views: 7932

Re: ADC damages Wifi radio?

Perhaps your firmware is somehow corrupting the flash configuration area used by the ESP libs (flash blocks 7C - 7F)?
You might try erasing those blocks and filling with zeros.
by joostn
Fri Feb 13, 2015 2:57 pm
Forum: ESP8266 SDK
Topic: Timer interrupt during spi_flash causes crash
Replies: 4
Views: 3315

Re: Timer interrupt during spi_flash causes crash

Yes for me that solved the issue.
In my project all code was in Flash by default, so I had to explicitly move it to IRAM.
Also check all functions called from your ISR. And I had a (c++) function declared as inline which the compiler didn't inline but placed in flash instead.
by joostn
Tue Jan 27, 2015 5:40 pm
Forum: ESP8266 SDK
Topic: Timer interrupt during spi_flash causes crash
Replies: 4
Views: 3315

Re: Timer interrupt during spi_flash causes crash

Ah! Thanks, I'll check my code.
by joostn
Thu Jan 22, 2015 9:29 pm
Forum: ESP8266 SDK
Topic: Timer interrupt during spi_flash causes crash
Replies: 4
Views: 3315

Timer interrupt during spi_flash causes crash

Here's a small bug in the SDK I've run into (esp_iot_sdk_v0.9.5_b1): I'm using a timer interrupt on Timer1: ETS_FRC_TIMER1_INTR_ATTACH(...); TM1_EDGE_INT_ENABLE(); ETS_FRC1_INTR_ENABLE(); running every millisecond or so. If I do a flash erase/flash write at the same time: spi_flash_erase_sector(...)...

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