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Home/esp32-s3

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Anonymous
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Anonymous
Asked: October 29, 2022In: Microcontroller

Esp32 s3 i2s

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Hello I am using Esp32 s3 korvo2 dev kit, it has 2 mics embedded in it. I want to display the audio input which is given using one of the mic in the microcontroller using i2s in esp-idf and then bring ...Read more

Hello

I am using Esp32 s3 korvo2 dev kit, it has 2 mics embedded in it. I want to display the audio input which is given using one of the mic in the microcontroller using i2s in esp-idf and then bring the trained model to the microcontroller. Could anyone has worked on it or has idea, help me with it. Any inputs are highly appreciated.

Thank you

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audioesp32-s3i2s
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nidhi singh
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nidhi singh
Asked: October 14, 2022In: Wireless Connectivity

ESP32-S3 Current Consumption with Radio Disabled

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Hello, I want to use ESP32- S3 for a device that makes no use of WiFi announcement Bluetooth, so I will keep them disabled. My question is what would be the expected current draw with the radio disabled? Trying to figure ...Read more

Hello,

I want to use ESP32- S3 for a device that makes no use of WiFi announcement Bluetooth, so I will keep them disabled. My question is what would be the expected current draw with the radio disabled? Trying to figure out my power supply conditions.

Thanks

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esp32esp32-s3powerradiowifi
  1. Alex thomas
    Added an answer on October 17, 2022 at 9:44 am

    Hi, You can find this information in the ESP32- S3 datasheet, Table 4- 9" Current Consumption in Modem- sleep Mode".( Modem- sleep mode is the mode where the radios( modems) are turned off. That is your case.) The numbers range from 13mA to 107mA, depending on the CPU frequence, which peripherals arRead more

    Hi,

    You can find this information in the ESP32- S3 datasheet, Table 4- 9″ Current Consumption in Modem- sleep Mode”.( Modem- sleep mode is the mode where the radios( modems) are turned off. That is your case.)
    The numbers range from 13mA to 107mA, depending on the CPU frequence, which peripherals are enabled, and what the CPUs are doing. For example, if the CPU frequency is 80 MHz and both cores are running, the current consumption would be in the range of 33 to 47 mA.

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vikas Nagpal
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vikas Nagpal
Asked: September 15, 2022In: Wireless Connectivity

ESP32-S3 DDR SPI?

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Looking at the ESP32- S3 datasheet section 3.5.2 Serial supplemental Interface( SPI), in the SPI2 General­purpose SPI( GP­SPI) mode part it’s mentioned that SPI2 can do DDR at 40Mhz while in half duplex mode. In the design i’ve a SPI slave chip that does DDR on the MISO line, as in MISO line needs to be sampled at both edges of the SCLK line. It’s not ...Read more

Looking at the ESP32- S3 datasheet section 3.5.2 Serial supplemental Interface( SPI), in the SPI2 General­purpose SPI( GP­SPI) mode part it’s mentioned that SPI2 can do DDR at 40Mhz while in half duplex mode.

In the design i’ve a SPI slave chip that does DDR on the MISO line, as in MISO line needs to be sampled at both edges of the SCLK line. It’s not a flash/ ram chip, so I need to drive the SPI2 in the general purpose mode.

I wanted to confirm that this is what the datasheet says, but looking at API docs for ESP- IDF for ESP32- S3 only talks about SPI DDR for external flash modules.

Can someone clarify, can I use SPI2 in general purpose master mode with half duplex, to sample the MISO line on both edges of SCLK?

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ddrESP-IDFesp32esp32-s3spi2
  1. nidhi singh
    Added an answer on September 23, 2022 at 1:20 pm

    It does have a DDR feature, but I do not think this point is in the driver yet. Can you share what chip you are trying to communicate with? I can tell the driver team what to focus on if I file an issue to apply this.

    It does have a DDR feature, but I do not think this point is in the driver yet. Can you share what chip you are trying to communicate with? I can tell the driver team what to focus on if I file an issue to apply this.

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