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I designed a PCB that uses the CYPD3177 for both negotiating 9V at 2A minumum and convert the voltage down to 5V via a buck converter, but which also uses the SAFE_PWR_EN as described in your schematic / documentation using two P channel mosfets to connect VBUS with 5V OUT in the case that the USB PD negotiations fail - in which case the 5V could still power my system in a low power mode.
However: for some reason the SAFE_PWR_EN pin is high (5V), when the system is connected to a regular USB power source (tested both with a USB A power adapter and a MacBook Pro via its USB-C port). But this means the mosfet stays disconnected and 5V OUT is not powered - which is the exact opposite behavior then what I expected. Expected was the SAFE_PWR_EN being pulled low, which then makes the P channel mosfets connect VBUS to 5V OUT.
Why is SAFE_PWR_EN high (5V) when a 5V source is connected and not low?
How do I fix this and make sure VBUS is connected to 5V OUT, when the USB PD negotiations fail?

I'm currently investigating the S70FL01GSAG 1Gb device as a replacement for the S25FL512S 512Mb device due to a larger flash capacity requirement. While trying to compare the two datasheets, it seems the S70FL01GSAG does not include much information regarding the device registers. Does the register information for S70FL01GSAG, similar to what is shown in the S25FL512S datasheet, exist anywhere and if so can someone provide me with it?

Dear community members

I need to measure the temperature of an FF800R12KE7 IGBT with an NTC sensor. I would like to know what is the best position to place the sensor. I tried around it but the temperature varied a lot with the position of the sensor. I plan to place it below the IGBT. But I wouldn't know which side would be better or if the ideal is right in the middle.

Kind regards,

Hi there,

Can you confirm whether the statement below is true?

"Where a watchdog timeout alarm (CPU or safety) is triggered the microcontroller will always reset"

I am learning about recovery timers and so far through my observation this appears to be true. I find the wording in the manual ambiguous however, where the word "ensure" is used in reference to this.

Thanks

HI,

We were testing the BLE functionality with Android9 OS.

During testing we found that BLE connection failed with the error showing  "bt_smp : dhkey chcks do no match".

This is random issue and observed during paring and unpairing. while performing this exercise we observed the dhkey mismatch error after 10 iteration of paring and unpairing..

Could please help on this.

Thanks,

Rajendra 

Hello Experts,

I am referring this document (page 36) for my configuration of UART to 115200 baudrate. I am not getting desired output on my putty terminal(I can see continuous junk getting displayed)

https://www.infineon.com/dgdl/Infineon-AN225401_How_to_Use_Serial_Communications_Block_(SCB)_in_Traveo_II_Family-ApplicationNotes-v05_00-EN.pdf?fileId=8ac78c8c7cdc391c017d0d3e657867d2

FYI.. This is my Cy_SysClk_PeriphSetFracDivider function settings.

CLK_PERI Frequency external crystal = 20MHz
115200(baud rate) * 16(OVS) = Input Clock = 1843200 Hz

DIV24.5 = 20MHz / 1843200 = 10.8506

Fractional Divider
Integer : 10 , Fractional : 27 (0.8437 = 27/32)

I have one basic doubt is CLK_PERI freq is same as external crystal oscil(ECO) 

The DC-DC module that supplies power to the driver chip is normal, the IGBT module is F3L200R12W2H3_B11, and the driver chip selected is 1ED020I12-F2 , and The driver circuit is shown in the figure. When the upper voltage is 300v, 9 of the 12 driver chips are bad. After replacing the 9 new driver chip, power on, give the duty cycle, a single measurement of G1 and E1 output signal, (1) three of them only output is -8V, replace the regulator diode (such as: D7) can work normally. After replacing the 9 new driver chip, power on, give the duty cycle, a single measurement of G1 and E1 output signal, (1) three of them only output is -8V, replace the regulator diode (such as: D7) can work normally. (2) but some no output, measured the driver chip's left and right side of the circuit found that the OUT output resistor is broken, some resistors shorted. After re-soldering found that the chip began to get hot, the newly soldered resistors began to blacken. (3) There is also an output of about 1-2V output. May I ask the technician what is the reason for the above three situations? Why -8V is the diode bad. And what is the reason for the hot chip? The hot chip driven by the tube is T2/T3, T6/T7. are the middle IGBT, this is not a bad IGBT, because my DC port voltage in 300v, the middle IGBT voltage withstand value is in 450v, T1/T4 in 1200V.

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The DC-DC module that supplies power to the driver chip is normal, the IGBT module is F3L200R12W2H3_B11, and the driver chip selected is 1ED020I12-F2 , and the driver circuit is shown in the figure. When the upper voltage is 300v, 9 out of 12 driver chips are broken. After replacing the nine new driver chip, power on, give the duty cycle, a single measurement of G1 and E1 output signal, (1) three of them only output is -8V, replace the regulator diode (such as: D7) can work normally. (2) but some no output, measured the driver chip's left and right side of the circuit found that the OUT output resistor is broken, some resistors shorted. After re-soldering found that the chip began to heat, the newly welded resistors began to blacken. (3) There is also an output of about 1-2V output.

Can a technician tell me what is the reason for the above three conditions? Why -8v is the diode bad. What is the reason for the hot chip? The tubes driven by the hot chip are T2/T3,T6/T7. they are all intermediate IGBTs, is this a bad IGBT because my DC port voltage is at 300v, the voltage withstand value of the intermediate IGBTs is at 450v, and the T1/T4 is at 1200V.

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As mentioned in the title, I use Control Center on PC to recongnize CYUSB3014-BZXI device on PCBA and that's OK.
Here Control Center is in Cypress's suite for FX3 devices.

However, when I power off my PCBA and PC, or just power off PCBA, Control Center occasionally shows no device after power on. On this circumstance, I could only unplug the USB3.0 wire and plug it again, and it's OK again.

Add: PC's OS is win10.

It's not OK as follow.

Next it's OK after re-plug.

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