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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.

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E9%97%A8%E7%BA%A7%E9%A9%B1%E5%8A%A8%E5%99%A8/The-driver-chip-is-hot-and-still-hot-after-replacement-is-it-caused-by-a-damaged/td-p/740460

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.

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E9%97%A8%E7%BA%A7%E9%A9%B1%E5%8A%A8%E5%99%A8/%E9%97%A8%E7%BA%A7%E4%BF%A1%E5%8F%B7IC%E5%8F%91%E7%83%AB-%E6%9B%B4%E6%8D%A2%E5%90%8E%E8%BF%98%E6%98%AF%E5%8F%91%E7%83%AB-%E5%91%A8%E5%9B%B4%E7%94%B5%E8%B7%AF%E6%B2%A1%E9%97%AE%E9%A2%98-%E6%98%AF%E4%B8%8D%E6%98%AFIGBT%E6%8D%9F%E5%9D%8F%E5%AF%BC%E8%87%B4%E7%9A%84/td-p/740451

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.

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E8%B6%85%E9%AB%98%E9%80%9FUSB%E5%A4%96%E8%AE%BE/Control-Center-cannot-reconize-CYUSB3014-after-power-on-unless-re-plug-USB-wire/td-p/740415

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 device.

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 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.

TLE5012B The E1000 reads and writes the MODE3 register, and after I write the angle value in, occasionally the value read out is 0X8091, not the value I wrote in.

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E8%A7%92%E5%BA%A6-%E7%A3%81%E6%80%A7%E4%BC%A0%E6%84%9F%E5%99%A8/TLE5012B-E1000%E8%AF%BB%E5%86%99%E5%AF%84%E5%AD%98%E5%99%A8/td-p/740382

Hi, Infineon team,

I want to know how to design for CSX Touchpad.
It seems that there is the document of AN234185 PSoC™ 4 CAPSENSE™ Touchpad design guide .
But I can't reach this link: https://www.infineon.com/002-34185

The PCB reference data has been gotten from the link in this thread.
https://community.infineon.com/t5/ModusToolbox/PSOC-capsense-touchpad-handwriting/m-p/381127#M497

However, I would like to know the design rules, and why these designs should be used.
If possible, could you provide me the AN234185?

Best Regards,

Hello,

IRFP044NPBF is discontinued, I found IRFP064NPBF, can I use it to replace the IRFP044NPBF ?

My project uses this mosfet as an electronic load for 20V, 3A, 60W max.