Hi,

thank you for the answer.


DECOUPLING CAPACITOR
------------------------------
Are you aware that the antenna and the LNA input pin are not galvanic isolated?


thank you,
Enrico Migliore

Hi, I'm designing a board with the ESP32. I noticed that in the latest hardware guideline, I mean the version V 2.4, the matching network changed. At chapter "2.1.5 RF" the document says: "A PI-type matching network is essential for antenna matching in the circuit design. C-L-C structure is recommen...

Dear WiFive,

thank you for your reply.

I'll wait for the IDF to support the ESP-PSRAM64.

Thanks,
Enrico Migliore

Hi, I purchased and received 3k ESP32-D2WD and 3k ESP-PSRAM64 chips. I'm designing a board with the ESP32-D2WD and with the ESP-PSRAM64. At page 9 of the 2.5 version of the datasheet I'm reading this: "ESP32-D2WD’s pins GPIO16, GPIO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1 are used for connecting ...

Hi,

I forgot to say in my very previous post that:

1. The I2S is assisted by the DMA. That means that there's no CPU intervention.

2. The I2S will generate a CPU interrupt only at the end of the data burst capture

Ciao,
Enrico Migliore

Dear Kolban, we too started out from: 1. The CAM-DEMO examples 2. The source file i2s_stream.c which is gittable at https://gist.github.com/cnlohr/2b9f8a26e891aa1a118f634cff9d04fe We've got something working right now. We are not ready yet for sharing the code though because the code is still dirty....

Hi, I need to read a 4-bit parallel port device. The external device provides also the clock to the ESP32. The bit rate is 1 Mbit/s and each data burst is made of 8192 bits In idle, the clock signal is low. When transmitting, the clock signal goes high and low at 1 Mbit/s. Is there any reliable I2S ...

Dear Archibald, >> I do not understand why you are thinking of using I²S. I don't want the CPU busy in reading an decoding a bit at a time. I want the hardware (I2S + DMA) to sample the pin and put the value into RAM. Afterwards I will need the CPU intervention only for decoding the bit stream which...

Hi, I'll also would like to see: 9. Wettable flanks QFN package like Texas Instruments and NXP for easy automatice AOI inspection: https://e2e.ti.com/blogs_/b/behind_the_wheel/archive/2016/02/03/the-value-of-wettable-flank-plated-qfn-packaging-for-automotive-applications https://e2e.ti.com/blogs_/b/...

Hi, I would like to give my little contribution to the "What I would like to see in the next IoT chip" discussion. This is my backgorund: I've been designing boards with GSM/GPRS/3G modules and software drivers for 22 years. I started to work in 1998 on the old Siemens M20 and I'm now working on the...