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Hello, Can LED2472G be applied as a shift register to drive signal relays with a coil current of <30mA? Can they be applied as general shift registers too? Thanks!
Hello,
Can LED2472G be applied as a shift register to drive signal relays with a coil current of <30mA? Can they be applied as general shift registers too?
Thanks!
Read lessHi, I would want to see what’s the maximum capacity of the MicroSD card to stay completely compatible with the ESP- 32 CAM specifications 32 Gb. further than 32Gb? Thank you for your answer, Nidhi Singh
Hi,
I would want to see what’s the maximum capacity of the MicroSD card to stay completely compatible with the ESP- 32 CAM specifications 32 Gb. further than 32Gb?
Thank you for your answer,
Nidhi Singh
Hello Nidhi, Above 32 GB, the card has to be formatted applying the exFAT filesystem. exFAT is supported in IDF through the FatFS library, but the support is disabled by default. You can modify #defineFF_FS_EXFAT 0 in ffconf.h from 0 to 1, and also rebuild the operation. Thank You
Hello Nidhi,
Above 32 GB, the card has to be formatted applying the exFAT filesystem.
exFAT is supported in IDF through the FatFS library, but the support is disabled by default. You can modify #defineFF_FS_EXFAT 0 in ffconf.h from 0 to 1, and also rebuild the operation.
Thank You
See lessHello, We are changing a product from a Community to an RA processor. Can we use the same E2 Studio and switch between SSP and FSP? We’ll have times when we are doing maintenance on the Community product and also doing ...Read more
Hello,
We are changing a product from a Community to an RA processor. Can we use the same E2 Studio and switch between SSP and FSP? We’ll have times when we are doing maintenance on the Community product and also doing dev on the new RA board.
Is there a specific version of E2 that can do this?
Does it make sense, or should we’ve two different E2 setups?
Thanks
Read less
Hi Alex, The FSP and SSP releases are at a different meter and each version released is tested/ qualified against a specific version of e2-studio. The distribution download of the platform installer will ensure that the proper version of e2-studio will be with the FSP/ SSP version. I advise that youRead more
Hi Alex,
The FSP and SSP releases are at a different meter and each version released is tested/ qualified against a specific version of e2-studio. The distribution download of the platform installer will ensure that the proper version of e2-studio will be with the FSP/ SSP version. I advise that you command a different and specific installation for SSP and FSP.
Thanks & Regards
Nidhi
Hi, We’re seeing a positive pulse in pin 6.5 while powering up, resetting & programming (via SWD). Please see the attached screenshots. The pin is port 6, which also has SWD and reset lines. We tested the pin with various configurations via ...Read more
Hi,
We’re seeing a positive pulse in pin 6.5 while powering up, resetting & programming (via SWD). Please see the attached screenshots.
The pin is port 6, which also has SWD and reset lines. We tested the pin with various configurations via PSoC creator, but could not find out the root cause. Can anyone help us in correcting this issue?
Edit We’re also seeing such an issue in pin 11.1
regards,
Nidhi
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Hello, By default, all GPIO pins start out at reset as Analog_HiZ. This means the pin though configured at initialization as a draw-down thing inactive low launches life floating until the boot initialization is complete. still, also I suggest an average worth resistor( 100K?) drag-down to GND If thRead more
Hello,
By default, all GPIO pins start out at reset as Analog_HiZ. This means the pin though configured at initialization as a draw-down thing inactive low launches life floating until the boot initialization is complete.
still, also I suggest an average worth resistor( 100K?) drag-down to GND If this is your project case.
Thank You
See lessHello, I’m designing a circuit with an L5973D switching controller to give 3.8 v and am facing a peculiar problem. The circuit is as per the design reference in the datasheet and the feedback resistors are given to give 3.8 v ...Read more
Hello,
I’m designing a circuit with an L5973D switching controller to give 3.8 v and am facing a peculiar problem. The circuit is as per the design reference in the datasheet and the feedback resistors are given to give 3.8 v affair (10K and 4.7 K). originally, I get 3.8 v. But while leaving the circuit connected, it starts inching up about 10mV every 10 twinkles or so. likewise, powering down the circuit and also back over doesn’t beget it to give 3.8 v again. Wondering what is going on.
Read lessHi, out of my one experience in switch mode power supplies there are a couple of key points to follow when doing these designs. 1. Insure all resistors are 1 type, this limits the change over temperature which in turn will limit the output change variations. 2. Insure the track from the switching poRead more
Hi,
out of my one experience in switch mode power supplies there are a couple of key points to follow when doing these designs.
1. Insure all resistors are 1 type, this limits the change over temperature which in turn will limit the output change variations.
2. Insure the track from the switching point is close as possible to the coil and doesn’t add resistance to the coil.
3. Output capacitors require to hold a low ESR type
hope some of this helps.
Thanks & Regards
Nidhi Singh
See lessHi We’ve to get our hardware certified in a number of different countries. And to meet the certification process the ESP software will need to configure our hardware to different functional countries as there are a number of software-controlled DC/ DC ...Read more
Hi
We’ve to get our hardware certified in a number of different countries. And to meet the certification process the ESP software will need to configure our hardware to different functional countries as there are a number of software-controlled DC/ DC inventories on the hardware.
The challenge is that Espressif just supplies the FCC test software as a binary. I’ve communicated with Espressif to know if I can get the source code or in the binary library so that I can incorporate it into our test code, and they replied that won’t supply the code.
Does anyone know how to put the ESP32 into the needed modes for the certification process?
Regards
Read lessHi, Do all possible noise sources have to be enabled during purposeful radiator testing or just those directly coupled to the antenna? Obviously, there is some possibility of dealings between purposeful and unintentional radiator sources. This is how we get stuff like FCC complete modular instrumentRead more
Hi, Do all possible noise sources have to be enabled during purposeful radiator testing or just those directly coupled to the antenna? Obviously, there is some possibility of dealings between purposeful and unintentional radiator sources. This is how we get stuff like FCC complete modular instrument taking rf shielding and internal regulation. The unintentional radiator sources would be tested independently with purposeful radiators powered off. This may be different from other official authorities.
Obviously, espressif should give some support similar to allowing gpio control or Lua/upython scripting in the test binary or releasing a library that can be incorporated into IDF designs. perhaps too important fear of CW mode being turned into a jammer? At least it should be available under NDA and usage agreement.
See lessHello, I am thinking to use RA2A1 MCU to measure a very small AC (50Hz) signal, perhaps millivolt range or lower, but it’s sin wave that has negative amplitude, is RA2A1 MCU single-end input can handle negative signal? Thank You
Hello,
I am thinking to use RA2A1 MCU to measure a very small AC (50Hz) signal, perhaps millivolt range or lower, but it’s sin wave that has negative amplitude, is RA2A1 MCU single-end input can handle negative signal?
Thank You
Read lessHello. I’ve been using the diodes as an RF sensor for 2.4 GHz signals. After many tests, the diodes keep breaking down and I had to change the diodes. Reverse Voltage (Vr) is below the maximum ratings for both of them. ...Read more
Hello.
I’ve been using the diodes as an RF sensor for 2.4 GHz signals. After many tests, the diodes keep breaking down and I had to change the diodes. Reverse Voltage (Vr) is below the maximum ratings for both of them. The circuit used for this is in the document” RF and microwave power discovery with
Schottky diodes” as attached.
Can you please help me understand why this is passing and any suggestions on how I can stop this from passing?
Thank you
Read lessHello， Have you checked that the bypass capacitor is chosen to be 1nF？ So that it has low ohmic capacitive reactance up to 6 GHz. RL between 10kohm and 1Mohm Best regards, Vikas
Hello，
Have you checked that the bypass capacitor is chosen to be 1nF？
So that it has low ohmic capacitive reactance up to 6 GHz.
RL between 10kohm and 1Mohm
Best regards,
Vikas
See lessHii, I’ve built a sample board of a 2A colorless LED driver applying the LED2000 move-down converter with a single LiIon battery as the power source. Everything seems to be solved as it should, but I would like to try the ...Read more
Hii,
I’ve built a sample board of a 2A colorless LED driver applying the LED2000 move-down converter with a single LiIon battery as the power source.
Everything seems to be solved as it should, but I would like to try the circuit more thoroughly to ensure the design is robust.
Would anyone have pointers on how to test the circuit, what parameters to measure, and what warning signs to look for that may indicate that something isn’t performing optimally?
Thanks, Vikas
Read lessHi, If you have a DC-coupled Current inquiry you can cover Inductor Current to check if it isn't working in the saturation region. Still, also you can check the switching pin with a voltage inquiry just to see a perfect waveform and measure the right switching frequency. Let me know. Nidhi Singh
Hi,
If you have a DC-coupled Current inquiry you can cover Inductor Current to check if it isn’t working in the saturation region. Still, also you can check the switching pin with a voltage inquiry just to see a perfect waveform and measure the right switching frequency.
Let me know.
Nidhi Singh
See lessHello, I’m presently working on a RA2L1 custom board and using the E2 emulator lite for debugging by e2 studio. I want to flash the device. still, I’m not finding any clear methodology documented for the same. It would be ...Read more
Hello,
I’m presently working on a RA2L1 custom board and using the E2 emulator lite for debugging by e2 studio. I want to flash the device. still, I’m not finding any clear methodology documented for the same. It would be helpful if the following points are clarified.
1. Do I’ve to use the Renesas flash programmer for flashing or it can be done through e2 studio?
2. Do I need to alter include anything in the code (tested fine in debug mode) specifically for flashing purpose?
3. Does the code need to be copied from flash to RAM in runtime for better performance? If yes, how do I insure that?
A step-wise guide application note on this topic would be of great help.
Regards,
Read lessHello, Thanks for sharing your question with Volt Engineering Community! Please take a look at Code written for downloading and debugging with E2 will most likely just hang when run without a debugger attached. 1. RFP is an option, or any development environment such as e2 studio or 3rd party toolsRead more
Hello,
Thanks for sharing your question with Volt Engineering Community!
Please take a look at Code written for downloading and debugging with E2 will most likely just hang when run without a debugger attached.
1. RFP is an option, or any development environment such as e2 studio or 3rd party tools can program the flash of the device.
2. No special accommodations in the application code are necessary to enable flashing the device. Most designs will incorporate a custom charge-loader that uses a particular interface (UART, CAN, etc.) with a proprietary comm protocol, but this isn’t needed if the serial programming mode of the device can be set and a tool used that supports factory programming protocol.
3. Renesas devices are optimized to execute code from the flash. Some designs that use comparatively slow flash technology can profit from RAM execution but that isn’t the case for RA devices.
Kind Regards,
Vikas Nagpal
Welcome, to the community! Well, LED2472G is a move register, but it can simply be used as similar to a limited extent the individual outputs (bits) are actually constant-current LED drivers, so they aren't actually able for sense purposes. But of course, you can control the loads connected to the iRead more
Welcome, to the community!
Well, LED2472G is a move register, but it can simply be used as similar to a limited extent the individual outputs (bits) are actually constant-current LED drivers, so they aren’t actually able for sense purposes. But of course, you can control the loads connected to the individual outputs logically in the same way as a shift register. Only the serial output is directly similar to a classic shift register.
Still, one could imagine using LED2472G to drive 30mA relays, indeed if this doesn’t correspond to the original purpose. But you mustn’t forget the usual free-wheeling diodes, which due to the unspecified avalanche energy should better be Schottky diodes because only they’re fast enough. Evenultra-fast diodes with a blocking time of 10.20 ns are probably too slow not to damage the respective LED driver- at least nothing guarantees that.
Does it answer your question?
Regards
Alex
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