Search found 12 matches
- Wed Jun 03, 2020 7:05 pm
- Forum: General Discussion
- Topic: ESP32-S2FH16?
- Replies: 1
- Views: 2933
ESP32-S2FH16?
Hello - I was noticing that there is now a ESP32-S2 variant that has shown up - the ESP32-S2FH16. It mentions there is 2MiB of flash onboard for this part - does it also embed some of the surrounding components such as the 40MHz crystal like the PICO module does, or does it just have additional flas...
- Fri May 22, 2020 5:14 pm
- Forum: Hardware
- Topic: RTC with 32.768 kHz crystal
- Replies: 14
- Views: 31171
Re: RTC with 32.768 kHz crystal
I'll chime in that for us we weren't able to make the crystal stable and ended up going with a MEMS oscillator instead. After we did our design with the MEMS oscillator, there is now an ECO indicating a fix for "Optimized 32.768 kHz crystal oscillator stability". See https://www.espressif.com/sites/...
- Thu May 21, 2020 8:03 pm
- Forum: Hardware
- Topic: ESP32D2WD SPI and JTAG pin with MUX
- Replies: 4
- Views: 5359
Re: ESP32D2WD SPI and JTAG pin with MUX
Hi Vlucio - Take a look at the GPIO matrix within the TRM. Most internal signals can be mapped to any external pin. There are some more "direct" paths, which are what are documented in the hardware reference manual, but you can get SPI signals out of any of the pins. See Figure 7 in the TRM - "IO_MU...
- Thu May 21, 2020 2:34 pm
- Forum: General Discussion
- Topic: ESP32-S2: 802.11mc FTM support?
- Replies: 8
- Views: 13167
Re: ESP32-S2: 802.11mc FTM support?
That's great!
Thanks,
Tim
Thanks,
Tim
- Thu May 21, 2020 2:13 pm
- Forum: Hardware
- Topic: Validating frequency of external crystals
- Replies: 0
- Views: 2256
Validating frequency of external crystals
Hello! I'm looking for a way to validate the operating frequency of the 40MHz crystal in one of our designs attached to a ESP32-D0WDQ6. Is there a way to output the 40MHz clock onto a pin on the system? I see that you can for the 32kHz clock, although, that isn't documented in the technical referenc...
- Mon Apr 20, 2020 3:33 pm
- Forum: Hardware
- Topic: Clarification for CHIP_PU voltage levels
- Replies: 1
- Views: 5333
Clarification for CHIP_PU voltage levels
Hello - For CHIP_PU, the datasheet states: High: On; enables the chip Low: Off; the chip powers off Note: Do not leave the CHIP_PU pin floating. What voltage is "high" to enable the chip? Typically it'd be something like 75% of VDD, but the diagrams for Vil_nrst (such as "Figure 5: ESP32 Power-up an...
- Thu Mar 12, 2020 7:47 pm
- Forum: General Discussion
- Topic: ESP32-S2: 802.11mc FTM support?
- Replies: 8
- Views: 13167
ESP32-S2: 802.11mc FTM support?
Hello - Just curious about the 802.11mc support that's mentioned in the datasheet. Will there be support for both client mode and access point mode? E.g. could you have two ESP32-S2s, and measure the rough distance between them using 802.11mc? When is this on the roadmap for software support for thi...
- Tue Mar 03, 2020 2:36 am
- Forum: General Discussion
- Topic: ESP32-S2: USB bootloader?
- Replies: 3
- Views: 6750
Re: ESP32-S2: USB bootloader?
Hi Angus - That's great news! (In addition to the reference manual, I was speculating that CDC-ACM and DFU might've been in there based on the *_descriptors symbols exported.) Looking forward to trying out the ESP32-S2 at some point. I looked around a bit in the esp-idf, and I didn't see any USB sup...
- Mon Mar 02, 2020 4:58 pm
- Forum: General Discussion
- Topic: ESP32-S2: USB bootloader?
- Replies: 3
- Views: 6750
ESP32-S2: USB bootloader?
Hello -
I was reading the technical reference manual for the ESP32-S2, and noticed it refers to download boot mode via USB. Does this mean it's possible to load code onto a blank ESP32-S2 via USB?
Thanks,
Tim
I was reading the technical reference manual for the ESP32-S2, and noticed it refers to download boot mode via USB. Does this mean it's possible to load code onto a blank ESP32-S2 via USB?
Thanks,
Tim
- Fri Apr 26, 2019 6:46 pm
- Forum: Hardware
- Topic: ESP32 PICO KIT 4.1 - MTDI Pullup
- Replies: 2
- Views: 4848
Re: ESP32 PICO KIT 4.1 - MTDI Pullup
It's also possible to force 1.8V or 3.3V operation regardless of the MTDI pull status with an eFuse. See https://github.com/espressif/esptool/wi ... e-vdd_sdio.