よくある質問
- M051 ベースシリーズ(95)
- M0518シリーズ(97)
- M0519シリーズ(43)
- M0564 シリーズ(1)
- ミニ 51 ベースシリーズ(90)
- ナノ 100/102 ベースシリーズ(101)
- Nano103 ベースシリーズ(10)
- ナノ 110/112 LCD シリーズ(100)
- ナノ 120 USB シリーズ(111)
- ナノ 130 アドバンストシリーズ(110)
- NUC029 シリーズ(94)
- NUC100/200 アドバンストシリーズ(102)
- NUC120/122/123/220 USB シリーズ(116)
- NUC121/125シリーズ(1)
- NUC126 USB シリーズ(2)
- NUC130/230 CAN シリーズ(103)
- NUC131/NUC1311 CAN シリーズ(98)
- NUC140/240 コネクティビティシリーズ(114)
Häufig gestellte Fragen
How does the ISP code (USB interface) provided by Nuvoton determine whether an ISP update procedure is required after booting? Datum:2018-11-27
The ISP code (USB interface) provided by Nuvoton can refer to the logic of an I/O pin to determine whether an ISP update is required through hardware.
Developers generally leave an updated path on the product. However, whether an ISP update is required will be determined by software or hardware.
(1) Hardware determination: It uses the extra I/O pin, through high logic and low logic as the reference, to determine whether to perform an ISP update after booting. The advantage is that it takes almost no time to determine, and the disadvantage is that an I/O pin will be occupied.
(2) Software determination: The device first identifies and communicates with the PC via USB and determines if an ISP update is required. The advantage is that no additional hardware costs are required, and the disadvantage is that USB identification will take a while.
Usually, when USB is used as the interface for ISP update, hardware determination will be used because software determination takes longer (a few seconds) to recognize and communicate between USB and PC, resulting in poor user experience.
The latest version of NuMicro ISP programming tool and user manual from Nuvoton can be found at:
http://www.nuvoton.com/tool-and-software/application-software
| Produkte: | Mikrocontroller ,8-bit-8051-MCUs ,Arm Cortex-M0-MCUs ,Arm Cortex-M23 Mikrocontroller ,Arm Cortex-M4-MCUs |
|---|---|
| Applikationen: | |
| Funktion: | Peripherals,Connectivity,USB,Software and Tools,Nu Tools,In System Programming (ISP) Tool |