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volt.tech Latest Questions

Alex thomas
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Alex thomas
Asked: December 6, 2022In: Wireless Connectivity

ESP32-C3 MINI-1 Module Programming?

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Hi, I purchased a couple of ESP32- C3 mini modules for a design. The modules are being mounted on the PCB board, I tried to flash/ program them for the application using a customized board (simplified schematic of esp32- c3 ...Read more

Hi, I purchased a couple of ESP32- C3 mini modules for a design. The modules are being mounted on the PCB board, I tried to flash/ program them for the application using a customized board (simplified schematic of esp32- c3 dev- board). The issue is that the system is unable to communicate with the module. I also replaced the module on an esp32-c3-mini dev board with the purchased one but still facing the same issue with the flashing. The question is that

Whether the esp32- c3 modules, in the market, are needed to be pre-programmed prior to the flashing process?

How I can flash the modules?

Any help comment/ guide will be appreciated!

Best Regards,

Alex

Read less
boarddevesp32esp32c3minimodulespcb
  1. nidhi singh
    Added an answer on December 8, 2022 at 10:09 am

    Hello, I just spent quite a bit of time figuring out why I could not upload to my own boards, so I appreciate what you are experiencing. The ESP32- C3- Mini modules don't need to be preprogrammed. You can write firmware to them directly using esptool.py I programmed mine using the Arduino IDE, whichRead more

    Hello,

    I just spent quite a bit of time figuring out why I could not upload to my own boards, so I appreciate what you are experiencing.
    The ESP32- C3- Mini modules don’t need to be preprogrammed. You can write firmware to them directly using esptool.py
    I programmed mine using the Arduino IDE, which uses esptooly.py under the hood.
    Still, we might be suitable to help, If you share what your custom programming board looks like.

    Thank You & Regards

    Nidhi

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  • 1 Answer
Answer
vikas Nagpal
  • 0
vikas Nagpal
Asked: September 12, 2022In: Microcontroller

How to Transfer Data, Dmac and Dtc in RA6T1

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Hi , I’m using RA6T1, and I study the manual, there are two modules to transfer data, dmac and dtc, and my question is, 1, what’s the main difference between these modules? 2, I’m doing a exercise like this transfer a ...Read more

Hi , I’m using RA6T1, and I study the manual, there are two modules to transfer data, dmac and dtc, and my question is,

1, what’s the main difference between these modules?
2, I’m doing a exercise like this transfer a 32bit data to gpt register every time gpt cnt overflow, the maximum frequency is 600khz, so which module I should use?

I regard over the manual, but didn’t get the point, so I want to get important information here, Thanks.

Read less
32bitdatadmacdtcmodulesra6t1
  1. nidhi singh
    Added an answer on September 16, 2022 at 9:51 am

    You're correct. Both the DMA and DTC can transfer data without the intervention of the CPU. The DMA, of which there's a limited number of channels, will be configured to be activated via an interrupt source, with data similar as source address, destination address, transfer size etc all ready set. WRead more

    You’re correct. Both the DMA and DTC can transfer data without the intervention of the CPU.

    The DMA, of which there’s a limited number of channels, will be configured to be activated via an interrupt source, with data similar as source address, destination address, transfer size etc all ready set. When the interrupt occurs the data transfer will occur within a couple of clk cycles.

    As mentioned, there are a limited number of DMA channels so it’s possible to use all channels fairly quickly.

    The DTC is a single channel of DMA that’s set at the point of activation of an interrupt. In the same way the CPU has an interrupt vector table, which specifies the address of the ISR code, so the DTC has a DTC vector table. However, also when the interrupt occurs the DTC will “ vector off ” to the address in the table, If an interrupt is set as a DTC detector. This address will store the transfer data- source address, destination address, data size etc and copy this into the DTC and the transfer will do.

    Thus, the DTC can support numerous transfer requests, further than the DMA.

    The limitation of the DTC is the time it takes for the data transfer to occur, due to the DTC vector read and setup. The actual transfer of data is the same as the DMA, so using the DTC is good for large blocks of data. The DMA may be better for single data transfer in your use case.

    But the DTC also has a nice mode called chain mode where a single activation can activate other transfers. Simply ensure that the configuration data in memory is continuous.

    Hope this brief explanation helps

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