Search found 10 matches
- Tue Aug 31, 2021 8:12 am
- Forum: ESP-IDF
- Topic: RS485 RTS control too slow
- Replies: 6
- Views: 5410
Re: RS485 RTS control too slow
Hi @ffrige, You can achieve better timings when you surpass the esp-idf driver and code up the UART ISR and other logic yourself. It's a bit more work but it surely pays off. In our project, we are using 2MBps UART on a half-duplex RS485 bus. When the interrupt fires for the TX_DONE interrupt, I dir...
- Tue Mar 10, 2020 9:48 pm
- Forum: ESP-IDF
- Topic: How to avoid accidental re-flash when secure boot enabled?
- Replies: 5
- Views: 8338
Re: How to avoid accidental re-flash when secure boot enabled?
HI, I was having the same issue for our production. I'm calling the esptool.py in a batch script, that first runs espefuse.py and checks (through string searching and substring) the ABS_DONE_0 bit before erasing/flashing. If it set to 1, abort. If it's 0, I start the flash procedure. I was a bit sur...
- Fri Dec 20, 2019 1:09 pm
- Forum: ESP-IDF
- Topic: C version of esptool?
- Replies: 3
- Views: 6634
Re: C version of esptool?
Hello, if your ESP32 is already running code (e.g. v1.0) which you then want to update (e.g. to v1.1), you can use the native OTA update functionality of the IDF to update your ESP and then send the actual binary through a link of your choice from the STM32 towards the ESP32. For example, you could ...
- Fri Nov 01, 2019 11:39 am
- Forum: ESP-IDF
- Topic: Support for Serial Management Interface (SMI)
- Replies: 2
- Views: 6162
Re: Support for Serial Management Interface (SMI)
Hi @Krajaan, We're using the same PHY in our project. The SMI messages are generated through the hardware MAC contained in the ESP32. As such, you can't alter the message structure, which you would need for this PHY. You will have to use I2C to communicate with the chip, this will allow you to acces...
- Sat Oct 19, 2019 1:15 pm
- Forum: ESP-IDF
- Topic: Real firmware size
- Replies: 3
- Views: 4660
Re: Real firmware size
WiFive wrote:No, actual bin size.
Thanks WiFive for your answer, but then I'm over the limit of one partition of 1M, no? (1063377 > 1048576).
I would expect a warning or error in this case?
Best
Vincent
- Sat Oct 19, 2019 9:24 am
- Forum: ESP-IDF
- Topic: Real firmware size
- Replies: 3
- Views: 4660
Real firmware size
Hi all, I've searched around for this on the docs and this forum but can't find a conclusive answer. Which firmware size counts when calculating remaining space with regards to the given partition table? For example: I'm having a standard OTA partition table: # Espressif ESP32 Partition Table # Name...
- Thu Aug 22, 2019 7:51 am
- Forum: ESP-IDF
- Topic: Enabling Flash Encryption after Secure Boot
- Replies: 4
- Views: 5199
Re: Enabling Flash Encryption after Secure Boot
Hi Angus,
That's ok and thanks for the fast clarification!
Best,
Vincent
That's ok and thanks for the fast clarification!
Best,
Vincent
- Thu Aug 22, 2019 7:12 am
- Forum: ESP-IDF
- Topic: Enabling Flash Encryption after Secure Boot
- Replies: 4
- Views: 5199
Enabling Flash Encryption after Secure Boot
Hi all, I am using ESP-IDF v3.3rc on an ESP-WROOM-32. I have succesfully enabled Secure Boot on my module and everything seems to run fine and all fuses seem to be in correct state. My bootloader was set to 'One-Time Flash' since I'm targeting a production environment. I now want to try to enable Fl...
- Tue May 21, 2019 10:34 am
- Forum: ESP-IDF
- Topic: Use of SecureBoot+Flash Encryption in mass production
- Replies: 3
- Views: 10490
Re: Use of SecureBoot+Flash Encryption in mass production
Thanks WiFive and ESP_Angus for the replies! That cleared up quite some things. It seems that a combination of 'Option 2' in the link you posted (using HTTPS OTA to also flash the full firmware with a new bootloader that has flash encryption enabled) with using Encrypted NVS to store custom activati...
- Mon May 20, 2019 9:31 am
- Forum: ESP-IDF
- Topic: Use of SecureBoot+Flash Encryption in mass production
- Replies: 3
- Views: 10490
Use of SecureBoot+Flash Encryption in mass production
Hello, We're working on a ESP32 based product that will hit large production numbers later this year. After carefully reading the documentation and checking the forum, I'm having some questions about the usage of the Secure Boot and Flash Encryption mechanism, which will be important to plan the act...