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传感器选择 MPXV5010 在 MPXV5010 中,如果 P1 > P2 输出从 0.2 到 5 伏,我需要完全相反且额定值相同的传感器,这意味着 P1 回复:MPXV5010 传感器选择 谢谢 回复:MPXV5010 传感器选择 是否能精确到 -10kpa
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Questions about the random number generator function Hello teams. Hope all is well I saw an NXP engineer's response to a TRNG related question on this board that "TRNG operates internally to generate the seed from which the PRNG is built." So, does that mean there is no need to input a separate seed value to generate a random number? Ps :  I know that when using the DRBG algorithm, it need to input a seed with a certain entropy. Are the DRBG algorithm and PRNG different concepts? Re: Questions about the random number generator function That's right, I was asking about the CSEc on the S32K. Thanks for the help! My question is all cleared up Re: Questions about the random number generator function Hi @Derek_Yoon  Are we talking about CSEc on S32K1? It's given by SHE specification. Initial seed is generated by CMD_INIT_RNG command. Then you can generate random numbers while it is not necessary to reseed. The only additional thing you can do in runtime is to run CMD_EXTEND_SEED command to supply 128 bit of entropy. You can call this command whenever additional entropy is needed. Regards, Lukas
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从不同睡眠模式唤醒 i.MX93 的时间基准 大家好, 我们希望将i.MX93用于 GUI 应用程序,该应用程序在一段时间后进入睡眠模式。现在我想知道是否有人知道从睡眠模式到再次完全运行需要多长时间。我以为我在某处看到过一个包含相关基准的表格(至少在 Linux 终端准备就绪之前),但我在文档中再也找不到它了。 有谁知道文档在哪里,或者甚至自己测量或测试过唤醒需要多长时间?唤醒源是 M33 LPUART 或连接的触摸屏。 谨致问候,迈克 电源 回复:从不同睡眠模式唤醒时间基准 i.MX93 志明你好, 感谢您为回答我的问题所付出的努力和时间。 我现在将你的最后一篇帖子标记为解决方案。如果我稍后偶然发现我想要的文档,我会将其链接到这里。 顺祝商祺! Michael 回复:从不同睡眠模式唤醒时间基准 i.MX93 志明你好, 我很确定这是 NXP 网站。该页面与您在上一个答案中发布的功率基准几乎完全相同。 其中一列列出了不同的睡眠模式,另一列列出了 Linux 终端准备好输入的时间。也许中间还有几列,但这些对于我的用例来说很重要。 此致, 迈克尔 回复:从不同睡眠模式唤醒时间基准 i.MX93 刘志明您好, 谢谢您的回复,但这些不是我想要的测量值。我很确定,我在某处找到了一份文档,其中测量了从离开不同睡眠模式到 Linux 终端准备好接受新输入的时间。但遗憾的是我再也找不到这份文件了。 谨致问候,迈克尔
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さまざまなスリープモードからのウェイクアップ時間ベンチマークi.MX93 みなさん i.MX93を GUI アプリケーションとして使用し、しばらくするとスリープ モードになります。さて、スリープモードから再び完全に動作するようになるまでにかかる時間を誰かが考えているかどうか知りたいです。関連するベンチマークが記載された表がどこかで(少なくともLinuxターミナルの準備が整うまでの時間)見たと思ったのですが、ドキュメントにはもう見つかりません。 誰かがドキュメントがどこにあるかを知っているか、またはウェイクアップにかかる時間を自己測定またはテストしていますか?ウェイクアップソースは、M33 LPUARTまたは付属のタッチスクリーンです。 よろしくお願いします、マイク パワー Re:さまざまなスリープモードからのウェイクアップ時間ベンチマークi.MX93 こんにちは、Zhiming、 私の質問に関してあなたの努力と時間をありがとう。 私は今のところあなたの最後の投稿を解決策としてマークします。後で意味したドキュメントに出くわした場合は、ここにリンクします。 よろしくお願いいたします。 Michael Re:さまざまなスリープモードからのウェイクアップ時間ベンチマークi.MX93 こんにちは、Zhiming、 きっとNXPのウェブサイトだったと思います。このページは、前の回答で投稿したパワーベンチマークとほぼ同じ外観でした。 1つの列にはさまざまなスリープモードがリストされており、他の列の1つには、Linuxターミナルが入力の準備が整うまでの時間がありました。その間にいくつかの列があったかもしれませんが、これらは私のユースケースにとって重要だったものでした。 よろしくお願いいたします マイケル Re:さまざまなスリープモードからのウェイクアップ時間ベンチマークi.MX93 こんにちは、Zhiming Liu、 ご回答ありがとうございますが、これらは私が考えていた測定値ではありません。私はかなり確信しています、私はLinuxターミナルが新しい入力の準備が整うポイントまで、さまざまなスリープモードを離れるまでの時間が測定された場所のどこかでドキュメントを見つけました。しかし、残念ながら、このドキュメントはもう見つかりません。 よろしくお願いします、マイケル
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s32k118 フラッシュ動作中はI2Cデータを送信し続けます。(読み取り/書き込み) 私は、MCUを開いてフラッシュ操作を行うときに、I2Cデータを送信し続けるホストS32K118持っています。 I2Cバスの異常状態が発生しました。I2CバスがFlash動作の影響を受ける理由がわかりません。 Re:s32k118フラッシュ動作が行われている間、I2Cデータを送信し続けます。(読み取り/書き込み) Hi@Yooyi 1.GPIOポートを使用してスレーブのステータスを示すなど、一部のハンドシェイク操作を実行でき、マスターはスレーブが通常の操作を再開するまで送信を一時停止できます。 2. または、マスターが通信障害を確認してから送信を一時停止します Re:s32k118フラッシュ動作が行われている間、I2Cデータを送信し続けます。(読み取り/書き込み) 異常な波形パターンが発生すると、I2Cが損傷し、I2Cが正常に通信できなくなる可能性があります。この問題を効果的に解決できる方法はありますか? Re:s32k118フラッシュ動作が行われている間、I2Cデータを送信し続けます。(読み取り/書き込み) Hi@Yooyi I2Cプロトコルでは、クロックはマスターノードから来ていますが、スレーブノードはマスターからクロックを受動的に受信することしかできませんが、スレーブは作業中にマスターからクロックを保持または解放できるため、クロックステータスはマスターによって完全に決定されません。 プログラムをMCUに書き込むと、スレーブノードは正常に動作せず、常にクロックを保持または解放し、このエラー状態になる可能性があります。
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s32K31x Flash書き込みの問題 ブート開発でs32k310を使用していたとき、0x440000後にフラッシュに書き込めず、MCRSのPEPレジスタが1に設定されていることがわかりました。0x400000-0x43ffffで手術をしても、そのような問題はないでしょう。 Re: s32K31x Flash 書き込み問題 このSPELOCKレジスタをどのように0にクリアしたのかお聞きしてもよろしいですか?クリアしようとしましたが、const修正d値であることが示されました Re: s32K31x Flash 書き込み問題 こんにちはダニエル 誠にありがとうございます、試してみます。 よろしくお願いします。 エックスソング
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s32K31x Flash写入问题 我在使用s32k310进行boot开发的时候发现在0x440000之后无法写入flash,而且MCRS的PEP寄存器被设置为1。如果我操作的是0x400000-0x43ffff就不会出现这个问题了。 回复:s32K31x Flash写入问题 请问您是如何将这个 SPELOCK 寄存器清零的?我尝试过清零,但它显示这是一个 const 修饰的 d 值。 回复:s32K31x Flash写入问题 嗨,丹尼尔 非常感谢,我会尝试的。 此致, 宋
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s32K31x Flash writing problem When I was using s32k310 for boot development, I found that I could not write to the flash after 0x440000, and the PEP register of MCRS was set to 1. There would be no such problem if I operated on 0x400000-0x43ffff. Re: s32K31x Flash writing problem May I ask how you cleared this SPELOCK register to 0? I tried to clear it but it showed that it was a const modified d value Re: s32K31x Flash writing problem Hi Daniel Thank you very much, I will try it. Regards, xsong Re: s32K31x Flash writing problem Hi @xsong, The first half of the 512KB block is protected by super sector locks. You need to clear the corresponding super sector lock in PFCBLK0_SSPELOCK. Please check the register before any flash operation at the sectors. Regards, Daniel Re: s32K31x Flash writing problem
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HSE_KF_ACCESS_DEBUG_PROT attribute actual intention Hello, In our company we are working on a project having MWCT2015S microcontroller. We store keys in the HSE_B secure memory setting the HSE_KF_ACCESS_DEBUG_PROT attribute so that the keys cannot be accessed (i.e. used) when a debugger is connected. Some of the keys may need to be updated once the product is in field (vehicle usage). The question is: what does the sentence "cannot be used" include? Does it refer only to prevent keys usage for cryptographic operations OR it means that they cannot completely handled when a debugger is connected? So, is it possible to update debug protected keys when the debugger is connected? Thank you in advance and best regards, Alessandro Di Vincenzo Re: HSE_KF_ACCESS_DEBUG_PROT attribute actual intention Ok, got it: debug protection flag is not a problem for key update. Thank you Lukas Re: HSE_KF_ACCESS_DEBUG_PROT attribute actual intention It looks like you have older version of the manual. I recommend to download the latest one which is version 2.3. It's the same for non-SHE keys. If you are importing a key first time (i.e. to empty slot), it can be loaded in plain. However, if you are updating a key, it is mandatory to use encryption and/or authentication (Table 47 and 48 in RM v2.3). So, this is also trusted operation as described in the SHE, there's no difference. Regards, Lukas Re: HSE_KF_ACCESS_DEBUG_PROT attribute actual intention Hi Lukas, We don't store the key in its SHE-format. Can I consider this statement valid also for the non-SHE keys managed according to table 31 in chapter 7.1.4.2 from the HSE_B RM? Thank you in advance, Alessandro Re: HSE_KF_ACCESS_DEBUG_PROT attribute actual intention Hi @ale_di_vi  here is an explanation from SHE specification: Regards, Lukas
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Wake up time benchmark i.MX93 from different sleep modes Hello everyone, we would like to use the i.MX93for a GUI application which after some time enters a sleep mode. Now I would like to know if anyone has an idea how long it takes from the sleep mode to be fully operational again. I thought I have seen a table somewhere (for at least the time until the Linux terminal is ready) with the related benchmarks, but I can't find it anymore in the documentation.  Does anyone know where the documentation is or has even self measured or tested how long it takes to wakeup? The wakeup sources are the M33 LPUART or an attached touchscreen.  Best regards, Mike Power Re: Wake up time benchmark i.MX93 from different sleep modes Hello Zhiming, thanks for your effort and time regarding my question.  I will mark your last post as solution for now. If I stumble upon the documentation I meant later, I will link it here.  Best regards, Michael Re: Wake up time benchmark i.MX93 from different sleep modes Hello, All of the documentation is on this page, and there doesn't seem to be the documentation you describe.  https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-9-processors/i-mx-93-applications-processor-family-arm-cortex-a55-ml-acceleration-power-efficient-mpu:i.MX93 You can remeasure the time according to AN14205. Best Regards, Zhiming Re: Wake up time benchmark i.MX93 from different sleep modes Hello Zhiming, I am pretty sure it was the NXP website. The page had almost the exact same look like the power benchmarks you posted in the previous answer. In one column there where the different sleep modes listed and in one of the other colums there were the times until Linux terminal is ready for input. Maybe there were a few columns in between, but these were the ones which were important for my use case.  Best Regards, Michael Re: Wake up time benchmark i.MX93 from different sleep modes Hello, Do you still remember the location of document, nxp website or community? Best Regards, Zhiming Re: Wake up time benchmark i.MX93 from different sleep modes Hello Zhiming Liu, thank you for your response, but these are not the measurements I had in mind. I am pretty sure, I found a documentation somewhere around where the time from leaving different sleep modes till the point where Linux terminal is ready for new inputs was measured. But sadly I cannot find this document anymore.  Best regards, Michael Re: Wake up time benchmark i.MX93 from different sleep modes Hello, Do you mean these articles? https://www.nxp.com.cn/docs/en/application-note/AN13917.pdf https://docs.nxp.com/bundle/AN14205/page/topics/introduction.html Best Regards, Zhiming
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s32k118 Keep sending I2C Data when Flash operation is doing.(read/write) I have a Host that keep sending I2C data, when I open S32K118 MCU and do flash operation. I2C Bus abnormal condition has occurred which like picture. I don't know why I2C bus is affected by Flash operation.  Re: s32k118 Keep sending I2C Data when Flash operation is doing.(read/write) Hi@Yooyi 1. You can do some handshake operations, such as using a GPIO port to indicate the status of the Slave, and the Master can suspend sending until the Slave resumes normal operation. 2. Or the Master checks the communication failure and then suspends sending Re: s32k118 Keep sending I2C Data when Flash operation is doing.(read/write) Once an abnormal wave pattern occurs, the I2C is likely to be damaged, causing the I2C fail to communicate normally. Is there any method which can solve it effective this problem ? Re: s32k118 Keep sending I2C Data when Flash operation is doing.(read/write) Hi@Yooyi Because in the I2C protocol, although the clock comes from the Master node, the Slave node may only passively receives the clock from the Master, but the Slave can hold or release the clock from the Master when working, so the Clock status is not completely determined by the Master. When you burn the program to the MCU, Slave node cannot work normally, it may always hold or release the clock, resulting in this error condition.
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s32k118 在 Flash 操作进行时继续发送 I2C 数据。(读/写) 我有一个主机不断发送 I2C 数据,当我打开 S32K118 MCU 并进行闪存操作时。 I2C 总线出现异常情况,如图所示。我不知道为什么 I2C 总线会受到 Flash 操作的影响。 回复:s32k118 在 Flash 操作进行时继续发送 I2C 数据。(读/写) 你好@Yooyi 1.可以做一些握手操作,比如用GPIO口指示Slave的状态,Master可以暂停发送,直到Slave恢复正常运行。 2. 或者主站检查通讯失败,暂停发送 回复:s32k118 在 Flash 操作进行时继续发送 I2C 数据。(读/写) 一旦出现异常波形,就有可能损坏I2C,导致I2C无法正常通信。有没有什么方法可以有效地解决这个问题? 回复:s32k118 在 Flash 操作进行时继续发送 I2C 数据。(读/写) 你好@Yooyi 因为在I2C协议中,虽然时钟来自Master节点,但是Slave节点可能只是被动地接收Master发送的时钟,但是Slave在工作时可以hold住或者释放Master发送的时钟,所以Clock的状态并不完全由Master决定。 当你将程序烧录到MCU时,Slave节点无法正常工作,可能会一直hold住或者释放时钟,导致出现此错误情况。
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Does the S32K344 have chip temperature monitoring? Hi NXP, Does the S32K344 have chip temperature monitoring? Best regards, Li 3 Re: Does the S32K344 have chip temperature monitoring? Hi @li3, No, there is currently no temperature monitor function. You can see the functionality of the TempSense module from the RTD ADC user manual:  Best regards, Julián Re: Does the S32K344 have chip temperature monitoring? Hi NXP, The TempSense chapter of the chip manual only sees the chip temperature reading, but does not see the temperature monitoring function. Is there no temperature monitoring function? Best regards, Li 3 Re: Does the S32K344 have chip temperature monitoring? Hi @li3, Yes, please look at chapter 85 Temperature Sensor (TempSense) from the S32K3xx Reference Manual. Best regards, Julián
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S32K312 default example, why is the core clock 160MHz, not 120MHz ? Hi , Our project uses s32k312 as the MCU. RTD2.0.0 The core_clk is 120MHz in reference manual. when I open the default example, I discover the CORE_CLK is 160MHz, not 120MHz, why? Re: S32K312 default example, why is the core clock 160MHz, not 120MHz ? OK, thank you very much. Re: S32K312 default example, why is the core clock 160MHz, not 120MHz ? Hi @Nitrogen8212, In S32K312, CORE_CLK=160Mhz can still run, but it is not recommended, as there will be unknown risks. You can see this was changed in later versions of the RTD packages of S32DS 3.5 RTD3.0.0 & 4.0.0: Best regards, Julián
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S32K312 FlexCAN development TDC configuration During the development of S32K312 FLEXCAN, I need to configure TDC for delay compensation, but I did not find the relevant option in the FLEXCAN module peripherals of the S32DS graphical configuration interface, as shown below Which interfaces or peripherals should be called to configure TDC? Re: S32K312 FLEXCAN开发TDC配置 Hi, yes, this is not in component setting. You can use available API before you put module to normal mode. For Example... BR, Petr Re: S32K312 FLEXCAN开发TDC配置 I would like to know what the offset in the function FlexCAN_Ip_SetTDCOffset_Privileged is generally set to? How can it be set to AutoTDC?
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udc_irq() function not called in imx8m mini? Hi all, I am currently working on usb gadget related stuff in cortex a53 processor. In sdp_init function frequently calling usb_gadget_interrupt() function but udc_irq() not called frequently. it is called only once but even udc status has been enabled by itself after that board has been restarting but it should call udc_irq() function. what is the issue? Thanks. i.MX 8M | i.MX 8M Mini | i.MX 8M Nano Re: udc_irq() function not called in imx8m mini? It was resolved Thank you. Re: udc_irq() function not called in imx8m mini? Hi @Hariharan1  Can you share your bsp verison, in uboot or linux?
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IW416 软件 UM11830 是指用于下载固件和手册的软件。但在此类别(软件/安全文件)中没有显示任何内容。我可以在哪里获得固件和文档? 回复:IW416 软件 我的回复解决了下载问题。系统说我使用了无效的 html 并进行了更正。使用更正后的链接有效。 回复:IW416 软件 抱歉,我无法访问 如何下载和构建 NXP Wi-Fi 驱动程序 - 用户手册(受限) 我已登录,但链接导致无限等待循环。 该驱动程序是否完全集成到 Linux 无线框架中?它使用 regdb 吗?
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S32K144 SPI payload limitation upwards 512bytes Hello community, I am working on S32K144 EVB board with NFC front-end device. S32K144EVB (master) communicates via SPI communication to NFC front-end device.  I would like to transfer 2kB payload and however more than 512 bytes does not work and S32K SPI driver get stuck and not IRQ is received. Does anyone know there, if there is certain limitation or managed to have bigger than 512bytes payload? Best regards Khulan Re: S32K144 SPI payload limitation upwards 512bytes Hello @nxp84325 @Khulan, I just sent you an email. Regards, Daniel Re: S32K144 SPI payload limitation upwards 512bytes Hi Daniel, I am working with Khulan on the same project. a Few questions: - is the same limitation present on S32K312? I have tried to send more than 4096 bits per frame with K312 and saw the same issue. Also, based on driver source code, it seems the same mask is applied to the TCR (0xFFF --> 12 bits). So I guess it's same. (using RTD version 3.0.0) - Concerning the S32K144, I have tried continuous mode. The problem is that PCS doesn't go back up at the end of the frame. Are we supposed to drive it manually? (using SDK 3.0.0) thanks in advance. Re: S32K144 SPI payload limitation upwards 512bytes Hi Daniel, We can confirm that our side that LSPI max framesize is 512 bytes. However we would need to support 1040 bytes payload. We can use alternative to S32K144EVB as well S32K312EVB. Does S32K312EVB use also same LSPI and would have same frame size limitation? Which document can I look in the future to get that information as well Otherwise we will further with continuous mode. Thanks and best regards Khulan Re: S32K144 SPI payload limitation upwards 512bytes Hi, I am using design studio version 3.5 with driver version S32SDK_S32K1XX_RTM_4.0.1. Best regards Khulan Re: S32K144 SPI payload limitation upwards 512bytes The .bitcount is 8 in your configuration, one frame is 8bit long. And .isPcsContinuos is false, so the CS deasserts after every frame. Again, which version of the SDK/RTD drivers do you use? BR, Daniel Re: S32K144 SPI payload limitation upwards 512bytes Hello Daniel, Thanks for the quick reply. I am using processor expert to generate my driver code and DMA mode is not enabled. It looks below. Where do you define TCR[FRAMESZ]) ? Best regards Khulan Re: S32K144 SPI payload limitation upwards 512bytes Hello @Khulan, Can you specify the revision of the drivers? What frame size have you set? The LPSPI module can send 4096b or 512B within one frame (TCR[FRAMESZ]), but it can send more frames in the continuous mode (TCR[CONT = 1]). Regards, Daniel
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S32K312 FlexCAN開発TDC構成 S32K312 FLEXCANの開発中に、遅延補正のためにTDCを構成する必要がありましたが、以下に示すように、S32DSグラフィカル構成インターフェースのFLEXCANモジュール周辺機器に関連するオプションが見つかりませんでした。 TDC を構成するには、どのインターフェイスまたは周辺機器を呼び出す必要がありますか? Re: S32K312 FLEXCAN开发TDC配置 FlexCAN_Ip_SetTDCOffset_Privileged関数におけるオフセットは通常どのような値に設定されているのでしょうか?また、それをAutoTDCに設定するにはどうすればよいでしょうか?
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S32K144 SPI ペイロード制限 512 バイト以上 コミュニティの皆さん、こんにちは。 私はNFCフロントエンドデバイスを備えたEVBボードS32K144作業しています。S32K144EVB(マスター)は、SPI通信を介してNFCフロントエンドデバイスと通信します。 2kBのペイロードを転送したいのですが、512バイト以上が機能せず、S32K SPIドライバーがスタックしてIRQが受信されません。 誰かがそこに知っている、特定の制限があるか、または512バイトを超えるペイロードを持つことができたかどうか? よろしくお願いいたします クーラン
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