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FAQ / How to solve the problem that the Keil project can only run in debug mode but can't be executed normally when developing machine learning programs in C++ with the Nuvoton evaluation board and Arm library?
https://www.nuvoton.com.cn/support/technical-support/faq/c2f673b8-011b-11ee-ab3e-000d3a082cb4/
Machine learning, ML, Continual breakpoints How to solve the problem that the Keil project can only run in debug mode but can't be executed normally when developing machine learning programs in C++ with the Nuvoton evaluation board and Arm library? 1683014520000 When the Keil project can run in debug mode but will get stuck if it is not connected to ICE in free-run mode, and it is found that the program continues to be stuck at a breakpoint from the debug mode, it may be a semihosting error. If some error messages such as "stdout/stdin/stderr multiply defined..." appear when using the Arm library in the Nuvoton machine learning examples, it will cause semihosting errors by deleting the repeatedly defined items directly and lead to the continued breakpoint appearing in the Keil project. Note: In order to avoid the semihosting errors, apart from deleting duplicate definitions, users need to add the following code in retarget.c: extern void $Super$$_sys_open(void); FILEHANDLE
FAQ / What is the operating voltage for ADC converter?
https://www.nuvoton.com.cn/support/technical-support/faq/d3e0dce2-04f1-11ea-b113-05daf7eedf03/
What is the operating voltage for ADC converter? 1423030249301 In the NuMicro™ family, the power distribution is divided into three segments: 1. Analog power from AVDD and AVSS provides the power for analog components operation; 2. Digital power from VDD and VSS supplies the power to the internal regulator with a fixed 1.8 V power for digital operation and I/O pins. (Except NUC100/120 AN, NUC100/120 BN and NUC130/140 CN and M051 AN Series will be 2.5V.) 3. USB transceiver power from VBUS offers the power for operating the USB transceiver (for NuMicro™ USB Series only). The operating voltage for ADC converter is 0 ~ VREF. Analog power (AVDD) should be the same voltage level of the digital power (VDD), otherwise the leakage occurs. Below figure is an example for the power architecture of NUC122 Series.
FAQ / What are ISP, ICP and IAP?
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What are ISP, ICP and IAP? 1423469461294 ISP stands for "In System Programming". The target chip runs the boot/loader code of LDROM through the peripheral interface such as USB/UART/SPI/I²C/RS-485/CAN... to update the internal APROM, Data Flash and User Configuration Word. ICP stands for "In Circuit Programming". PC runs the software “NuMicro ICP Programming Tool” through the SWD (serial wire debug) port of Nu-Link circuit to update the internal APROM, LDROM, Data Flash and User Configuration Word of the target chip. IAP stands for In-application-programming and it is a function for user to switch the code executing between APROM and LDROM without reset. User can enable the IAP function by re-booting chip and setting the chip boot selection bits in CBS (CONFIG0[7:6]) as 2 or 0. When chip boots with the IAP function enabled, any other page within the executable range of code can be mirrored to the first page of executable code (0x0000_0000~0x0000_01FF) any time.
FAQ / Does the NuMicro™ Cortex-M0/M4 Series support the code protected for user's program code? How to unlock the LOCK bit on the User Configuration Word?
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Code Protection Does the NuMicro™ Cortex-M0/M4 Series support the code protected for user's program code? How to unlock the LOCK bit on the User Configuration Word? 1423471326414 Yes, the LOCK bit is provided on the User Configuration Word to protect user's program code. When this LOCK bit is set, all of the data on the Flash memory will be read back as 0xFFFFFFFF. At this time, the "Whole Chip Erase" operation should only be performed for the target chip to unlock the LOCK bit.
FAQ / What is the page size of erase and data size to program for Flash memory?
https://www.nuvoton.com.cn/support/technical-support/faq/d3f2b73b-04f1-11ea-b113-05daf7eedf03/
What is the page size of erase and data size to program for Flash memory? 1423471655304 It is 512 bytes per page to erase for Cortex-M0 and 2k bytes for Cortex-M4. The data size for per data to program is 4 bytes (a word).
FAQ / What series in the NuMicro™ family supports UID (Unique ID)? What to do if the user wants to use a unique ID to encrypt a chip?
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What series in the NuMicro™ family supports UID (Unique ID)? What to do if the user wants to use a unique ID to encrypt a chip? 1423411200000 User can use the UID (Unique ID) to encrypt all the NuMicro family chips except NUC100AN and NUC100BN Series. As to UID (Unique ID), Nuvoton will plant the UID into chips as mentioned above and each chip’s UID is different from others. User can provide some judging rules in the firmware code to prevent from stealing the original code and reproducing the same product.
FAQ / What is the clock source of RTC (Real Time Clock) controller? Does RTC operate in Power- down mode?
https://www.nuvoton.com.cn/support/technical-support/faq/d40099f4-04f1-11ea-b113-05daf7eedf03/
What is the clock source of RTC (Real Time Clock) controller? Does RTC operate in Power- down mode? 1423560530254 The only clock source of RTC controller comes from the LXT. Since the LXT still works in Power-down mode, RTC can operate and wake up the whole chip from this mode.
FAQ / How many Timer controllers are there in the NuMirco™ family?
https://www.nuvoton.com.cn/support/technical-support/faq/d4052dd7-04f1-11ea-b113-05daf7eedf03/
How many Timer controllers are there in the NuMirco™ family? 1423497600000 There are up to 4 sets of 32-bit Timer controllers in a chip of NuMicro™ family, but it depends on the part number. Timer and PWM timer is independent of selecting the clock source. Hence, user can also use the Systick and the PWM Timer (if PWM Timer enabled but the PWM output disabled) as the Timer.
FAQ / What are the resolutions of Pre-scaler and Timer counter in the Timer controller?
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Pre-scaler What are the resolutions of Pre-scaler and Timer counter in the Timer controller? 1423561710045 They are 8-bit pre-scaler and 24-bit up-counting timer counter.
FAQ / What are the operating modes of Timer controller?
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What are the operating modes of Timer controller? 1423648320000 The Timer controller provides One-shot, Periodic, Toggle and Continuous (Auto-reloaded) Counting Operation modes. It also provides the event counting function to count the event from an external pin and the input capture function to capture or reset the timer counter value. (The NUC100/NUC120 medium density only supports One-shot and Periodic modes.)
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