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Hello everyone! There are a couple of phenomena regarding the parameterization of the motor for actual debugging, and I'd appreciate any advice.

1. Startup duty cycle, more than 35% or more, a large number of tests, there will be a probability of power-on direct overcurrent protection, and then the system strike, restart to work properly;

2.Kp Ki parameter design, as if there is not much law, according to Kp/Ki = L / R, this formula does not seem to be very right, because in general, L is particularly small, so must be too large a difference, is not a 2:1 relationship, but at present the test to see how to set up, will only affect the corresponding speed, the motor running stability has not been found to have any effect. Regarding the pi parameter, if there is any opinion, please point it out.

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/MOTIX-MCU/%E7%94%B5%E6%9C%BA%E5%8F%82%E6%95%B0%E8%AE%BE%E7%BD%AE/td-p/742823

你好

      在核0处理safetlib runtime test时用内部看门狗喂狗，如果在其他核调用了mcal的clearsafetyendinit api，这样可能会出现两个api同时操作WDTSCON0寄存器，有可能会产生有冲突的情况。目前只看到mcal的api中有自锁保护，想问下是有哪个机制规避了这种情况吗？

您好，

请问如何才能用miniWiggler 下载调试的JTAG连接方式进行下载呢？

您好：

         现在我们在用贵公司的1ED020I12-F2芯片，但是出现了一个问题，在使用数据手册基本电路图的前提下，该芯片的OUT引脚一直输出低电平，此时/FLT也是低电平。后测量后发现DESAT引脚上有大约0.7V的电压，然后我们给了DESAT一个低电平，此时输出是正常的，/FLT也是高电平，即正常工作。所以请问为什么正常使用DESAT引脚上会有一个0.7左右的电压，而该电压又会导致/FLT输出低电平，导致OUT输出也是低电平？

您好， （1）目前的驱动芯片：1ED020I12-F2（2A），IGBT模块：FS3L50R07W2H3F_B11（650v，50A）工作环境是直流母线电压在300V，纯阻性负载功率1000w。 （2）但是在300V工作20s后，IGBT烧坏了。损坏情况如图，一共四处。这是因为什么？过压（电压选型的裕度应该够吧），过流？为什么会出现这种情况？会有哪些原因导致？ （3）能推荐一下同样的封装的驱动芯片和IGBT吗？或者推荐一个过流值比较大的驱动芯片？ 期待您的解答

Hello.

I'm planning to work with the CYUSB3KIT-003.

Reading and following the Kit User Guide,  I am able to complete section 2.1 FX3 SDK Installation using the file ezusbfx3sdk_1.3.5_Windows_x32-x64.

Then next step, 2.4 Superspeed explorer kit installation, is the one not being able to complete. I am using the file SuperSpeedExplorerKitSetup_RevSS obtained from the  CYUSB3KIT-003 design support section.

The installation stops and an error shows up. After clicking "OK " it rolls-back the installation of the items completed.

I would like to get directions to solve this. Its not clear what item is the one that supposedly found a newer version already installed. Anyways, this is right after installing the FX3 SDK, then probably this packet has something newer than the otehr installation is not expecting.

*I tried using the other file available: SuperSpeedExplorerSetupOnlyPackage_RevSS; this one is able to get installed, but then, following the user guide the next step is to use the update manager but this one can not be found, it seems this different package for the Superspeed explorer kit  doesn't include that and other things.

Thank you,

Alan.

I have a RPi 3b which is running a software package that hasn't had updates in many years and does not run on newer kernels. The system keeps randomly encountering a bug where the below message gets thrown and wlan0 is unresponsive until the system is rebooted (as outlined in the github thread found here). The firmware version the system currently reports is: 7.45.98.38 (r674442CY) FWID 01-e58d219f

brcmfmac: brcmf_sdio_hostmail: Unknown mailbox data content: 0x40012

That said, I am trying to compile a new driver to run on the old 4.14.79-v7+ kernel. I have followed the info on the backports github page and have not been successful as of yet (I am a complete novice here).

To summarize, I got the 4.14.79 kernel source, set variables, and compiled the kernel image just fine. When trying to build the backports package for the modules, I run into issues. The first time I tried building the kernel image, I did not specify the below variables and ran into a problem since I did not specify "CONFIG_ASYMMETRIC_KEY_TYPE" and associated variables in the config. The second time around I did use the variables and everything went smooth. However, when trying to insert the compat.ko module, I get a message about "Unknown symbol in module" and dmesg says "Unknown symbol hash_algo_name (err 0)". Now, as far as I can tell that module does not exist on my system (cat /proc/kallsyms | grep hash_algo_name and hash_info both return nothing) and I don't know how to get around it.

Ultimately, I am trying to update the Wi-Fi driver and firmware to fix the bug at the top of the post and nothing more. I want to keep the modifications to this old system to a minimum. If that means using an older driver source that doesn't need the "hash_algo_name" symbol or hash_info module, then that is fine by me. If there is a way to compile the latest driver so that it doesn't have any need for the hash_info module, that is also fine by me. Whatever it takes to get a newer driver on the system that doesn't have the issue I keep running into randomly. 

Any insight is appreciated!

Below are the commands and variables I have been using:

apt install git bc bison flex libssl-dev make
git clone --depth=1 --branch raspberrypi-kernel_1.20181112-1 https://github.com/raspberrypi/linux
cd linux
KERNEL=kernel7
make bcm2709_defconfig
# add the below lines to the .config file
	CONFIG_CFG80211=m
	CONFIG_BCMDHD=n
	CONFIG_ASYMMETRIC_KEY_TYPE=y
	CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
	CONFIG_X509_CERTIFICATE_PARSER=y
	CONFIG_PKCS7_MESSAGE_PARSER=y
make oldconfig
make -j4 zImage modules dtbs
make modules_install

cd ~/
git clone --depth=1 https://github.com/Infineon/ifx-backports
cd ifx-backports/v5.15.58-backports/
bash
MY_KERNEL=~/linux
make KLIB=$MY_KERNEL KLIB_BUILD=$MY_KERNEL defconfig-brcmfmac
make KLIB=$MY_KERNEL KLIB_BUILD=$MY_KERNEL modules

cp ~/ifx-backports/v5.15.58-backports/compat/compat.ko /lib/modules/4.14.79-v7+/compat.ko
insmod /lib/modules/4.14.79-v7+/compat.ko

Dear IFX,

EVAL_AUDAMP24 board has IRS20957 + 400V GaN (IGT40R070D1) and i wonder on 100V GaN connection.

Do we need any circuit change on Gate on/off once we use 100V or 600V GaN instead  of 400V GaN?

BR/Saint