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Can LED2472G be applied as a shift register to drive signal relays?
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
See lessPSoC6 Port 6 GPIO shows a pulse at power up/ programming?
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 lessHow RA2A1 24 Bit Single end input measure negative signal?
Hi, You can find the input voltage range in differential input mode in Table 33.7: Thank You
Hi,
You can find the input voltage range in differential input mode in Table 33.7:
Thank You
See lessHow to Check EMC in Test Mode for the Certification Process?
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 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 lessICE3PCS01G Vref(5v) not coming?
Thanks for your Question. For the IC, the turn-on voltage is between 11.5~12.9V, turn of is between 10.5~11.9V. So, for 12.15V, if the Vcc is from 12.9V down to it, the IC will run. If VCC is from 10V up to 12.15V, the IC is off and can't work.
Thanks for your Question.
For the IC, the turn-on voltage is between 11.5~12.9V, turn of is between 10.5~11.9V.
So, for 12.15V, if the Vcc is from 12.9V down to it, the IC will run. If VCC is from 10V up to 12.15V, the IC is off and can’t work.
See lessHow to replace STP16CPC26?
Welcome, to the community! Yes, the newer STP16CPC05 can replace the older STP16CPC26 and contains some advancements that make component selection easier (smaller bypass capacitor possible) or the slightly advanced maximum driver current. Does it answer your question? Regards
Welcome, to the community!
Yes, the newer STP16CPC05 can replace the older STP16CPC26 and contains some advancements that make component selection easier (smaller bypass capacitor possible) or the slightly advanced maximum driver current.
Does it answer your question?
Regards
See lessESP32- C3 Mini Devkit Configure for Built in USB JTAG?
The PCB layout of that dev board can be found then. As far as I can see, you need to rotate those resistors 90 degrees to move them from the red to the green position in this image: You probably also want to disconnect the RxD/TxD pins from the CP2104 to the ESP32C3 if you want to use those pins. YoRead more
The PCB layout of that dev board can be found then. As far as I can see, you need to rotate those resistors 90 degrees to move them from the red to the green position in this image:
You probably also want to disconnect the RxD/TxD pins from the CP2104 to the ESP32C3 if you want to use those pins. You can do that by removing R21/R22, I marked those in blue.
The built-in USB thing should more or less work as an extra UART inside the ESP32C3 and as a general CDC- ACM serial port(=no drivers needed) on the PC side. You do need to use the latest master of ESP-IDF to get full support for it, and if you specifically want to select the device as your press output UART in menuconfig, else, your debug messages will go to UART0.
On the JTAG side, just useesp_usb_jtag. cfg as your JTAG adapter, config file in OpenOCD and you should be good.
See lessStill, feel free to post it here, If you need any further help. Support for the built-in USB-to-JTAG thing on the C3 is enough new, so I’d be interested in seeing how you fare with it.
IWDT not working Ra6m1 MCU?
Hi Son, The option-setting memory( where the 0FS0 register exists) determines the state of the MCU after a reset. So this particular address will be read to configure WDT and IWDT when the system boots. The way to change these registers is from the bootloader image, as I explained. You may find someRead more
Hi Son,
The option-setting memory( where the 0FS0 register exists) determines the state of the MCU after a reset. So this particular address will be read to configure WDT and IWDT when the system boots. The way to change these registers is from the bootloader image, as I explained.
You may find some useful information about bootloader applications here.
Let us know if you have further questions.
See lessRegards,
Alex
GPIO Edge Detection When ISR is Raised?
Thanks for posting your question! You could check your IRQ- pin's level when entering your interrupt message function in order to check if a rising or falling edge is detected. In case your pin's level was initially low and when entering your message function it became high then a rising edge was deRead more
Thanks for posting your question!
You could check your IRQ- pin’s level when entering your interrupt message function in order to check if a rising or falling edge is detected. In case your pin’s level was initially low and when entering your message function it became high then a rising edge was detected. If your pin was initially high and also became low then a falling edge was detected. You could read your pin level by accessing the register shown in the picture below.
For example, if your IRQ pin is P110, you could check its level in the interrupt message function like this:
R_PORT1->PIDR_b. PIDR10 and check if it’s 1 (HIGH) or 0 (LOW).
Another way is by using the already given API
1.fsp_err_tR_IOPORT_PinRead(ioport_ctrl_t * constp_ctrl,bsp_io_port_pin_t pin,bsp_io_level_t *p_pin_value);
Kind Regards,
See lessAlex
RA6M2 and SCE7?
Hi Vikas, You can use the needed SCE driver by adding it to your design as below. Let us know if you have to follow- up questions. Alex
Hi Vikas,
You can use the needed SCE driver by adding it to your design as below.
Let us know if you have to follow- up questions.
Alex
See less