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by WiFive
Sun Aug 25, 2019 2:06 am
Forum: ESP32 IDF
Topic: Change Partition Subtype during runtime
Replies: 3
Views: 92

Re: Change Partition Subtype during runtime

You can only erase a whole sector, you can't change a single byte without doing that. Technically you can change 1's to 0's but in this case the value is already 0 and the new hash/checksum will almost certainly require setting 0's to 1's.
by WiFive
Sun Aug 25, 2019 1:55 am
Forum: General Discussion
Topic: New Chip ESP32-S2
Replies: 38
Views: 5768

Re: New Chip ESP32-S2

rudi ;-) wrote:
Sat Aug 24, 2019 10:21 pm
yes!
No
https://github.com/espressif/esp-idf/bl ... /soc/soc.h

Let's try to keep the thread clean of guessing.

OFDM modem is just part of wifi.
by WiFive
Sat Aug 24, 2019 4:41 am
Forum: ESP32 IDF
Topic: Change Partition Subtype during runtime
Replies: 3
Views: 92

Re: Change Partition Subtype during runtime

To do this you would have to erase the existing partition table and if you fail to write a valid replacement for some reason like power loss the device will be bricked. And you also have to enable SPI_FLASH_DANGEROUS_WRITE
by WiFive
Sat Aug 24, 2019 1:59 am
Forum: General Discussion
Topic: New Chip ESP32-S2
Replies: 38
Views: 5768

Re: New Chip ESP32-S2

123 can_rx 1 no can_tx 1’d1
124 - - - can_bus_off_on 1’d1
125 - - - can_clkout 1’d1
by WiFive
Fri Aug 23, 2019 10:57 pm
Forum: General Discussion
Topic: New Chip ESP32-S2
Replies: 38
Views: 5768

Re: New Chip ESP32-S2

Datasheet hints that it still has CAN
by WiFive
Fri Aug 23, 2019 11:42 am
Forum: General Discussion
Topic: ROM bootloader code
Replies: 1
Views: 75

Re: ROM bootloader code

It is closed source. But you can look at the stub loader code in esptool. Why can't you fix the hardware issue?
by WiFive
Thu Aug 22, 2019 9:05 pm
Forum: ESP32 IDF
Topic: [SOLVED] bootloop using v3.2 bootloader with v3.3-rc app
Replies: 4
Views: 144

Re: [SOLVED] bootloop using v3.2 bootloader with v3.3-rc app

You should sell bare board without firmware to use as esp32 universal IR/RF dev kit.
by WiFive
Wed Aug 21, 2019 10:49 pm
Forum: ESP32 IDF
Topic: (solved) My app now hangs on boot
Replies: 12
Views: 291

Re: (solved) My app now hangs on boot

It is related to bugfixes that are required for certain silicon versions. If you know you will only ship v1 chips you can eliminate the workarounds for v0. If you know you will only ship v2 chips (future) you can eliminate v0 & v1 workarounds. However it isn't fully implemented yet afaict.
by WiFive
Wed Aug 21, 2019 9:56 pm
Forum: ESP32 IDF
Topic: [SOLVED] bootloop using v3.2 bootloader with v3.3-rc app
Replies: 4
Views: 144

Re: bootloop using v3.2 bootloader with v3.3-rc app

https://github.com/espressif/esp-idf/issues/3865

Is bond 2 with esp32 shipping now or still mt7688 version?

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