Search found 62 matches

by iosixllc
Fri Oct 27, 2017 7:15 pm
Forum: Hardware
Topic: Issues flashing D2WD/flash status meaning?
Replies: 10
Views: 1807

Re: Issues flashing D2WD/flash status meaning?

This is at 1.8V, so strapping config is 10K to group from MTDO and 10K to 3.3V from MTDI. Nothing is connected to SD_DATA_0-3, SD_CLK, SD_CMD, GPIO16-17 - everything in the 1.8V domain, except 1uF to ground on VDD_SDIO. Thanks.
by iosixllc
Thu Oct 26, 2017 9:18 am
Forum: Hardware
Topic: Flash erase/write/read test failing
Replies: 3
Views: 922

Flash erase/write/read test failing

I am running the following code, to perform a regression test on the flash memory, and am getting a lot of errors. Note that before, when we were running VSDIO @ 3.3V (D2WD), the flash was working perfectly. Once we set the fuse for 1.8V, these errors started, and I'm sorry to say we are still seein...
by iosixllc
Thu Oct 26, 2017 9:07 am
Forum: Hardware
Topic: Issues flashing D2WD/flash status meaning?
Replies: 10
Views: 1807

Issues flashing D2WD/flash status meaning?

Hi - am getting this issue on some D2WD devices - sometimes they will flash a few times and then start doing this: $ make -j 32 flash project.mk:53: esp-idf build system only supports MSYS2 in "MINGW32" mode. Consult the ESP-IDF documentation for details. project.mk:53: esp-idf build syste...
by iosixllc
Mon Sep 25, 2017 12:38 pm
Forum: ESP32 IDF
Topic: EFUSE read/write VDD_SDIO from user application
Replies: 26
Views: 3909

Re: EFUSE read/write VDD_SDIO from user application

Thanks Angus, Yes, you understand the problem correctly. We are seeing the behavior on ~30 chips, many of which were not ever run at 3.3V. 20MHz seems to have no effect. We have the standard 0.1uFs all around plus 1uF and 10uF near the antenna pad power inputs. Also, bulk 47uF capacitance maybe 10-2...
by iosixllc
Sat Sep 23, 2017 2:54 pm
Forum: ESP32 IDF
Topic: EFUSE read/write VDD_SDIO from user application
Replies: 26
Views: 3909

Re: EFUSE read/write VDD_SDIO from user application

Ok then I do have the latest bootloader. It seems if I could slow the write speed that would be ideal. I’m at 3.3V with VSDIO at 1.8V.
by iosixllc
Sat Sep 23, 2017 5:25 am
Forum: ESP32 IDF
Topic: EFUSE read/write VDD_SDIO from user application
Replies: 26
Views: 3909

Re: EFUSE read/write VDD_SDIO from user application

I do have that enabled in sdkconfig. I have only tried DIO. I was not aware there is an updated boot loader - would that have come with the new esp-idf? I haven’t tried the OTA example, but I will say this code works 100% at 3.3V.
by iosixllc
Fri Sep 22, 2017 10:00 pm
Forum: ESP32 IDF
Topic: EFUSE read/write VDD_SDIO from user application
Replies: 26
Views: 3909

Re: EFUSE read/write VDD_SDIO from user application

I was using 2.1 beta, I just updated to HEAD along with the latest compiler update, and am getting the same result: I (47010) upgrade: OTA Partition: 3FFD8E30 I (47010) upgrade: Set start address for flash writes to 0x00100000 I (50380) upgrade: Result from esp_ota_begin: 0 1 So far we have 968 byte...
by iosixllc
Fri Sep 22, 2017 9:34 pm
Forum: General Discussion
Topic: make flash errors
Replies: 13
Views: 4205

Re: make flash errors

Fixed it - needed to add to PATH:

https://github.com/espressif/esp-idf/issues/493
by iosixllc
Fri Sep 22, 2017 9:19 pm
Forum: General Discussion
Topic: make flash errors
Replies: 13
Views: 4205

Re: make flash errors

I just downloaded the new SDK - esp32_win32_msys2_environment_and_toolchain-20170918.zip

This doesn't seem to include python, so I downloaded 2.7, but it doesn't recognize windows COM ports. Is there a special python release I need? Thanks!
by iosixllc
Fri Sep 22, 2017 6:58 am
Forum: ESP32 IDF
Topic: EFUSE read/write VDD_SDIO from user application
Replies: 26
Views: 3909

Re: EFUSE read/write VDD_SDIO from user application

If I skip the write verify and let it complete, I get this: I (150478) upgrade: OTA Partition: 3FFB71BC I (150480) upgrade: Set start address for flash writes to 0x00100000 I (153751) upgrade: Result from esp_ota_begin: 0 1 I (165284) esp_image: segment 0: paddr=0x00100020 vaddr=0x3f400020 size=0x13...