Dear experts, please help me. I use MCU to control MC39I to dial CMNET. There is no problem in LCP negotiation, but every time I do PAP authentication, after sending the User and Password (both are em...
Bootloader - IAP UpgradeIntroductionTo learn and use Bluetooth, you need to understand IAP upgrade first, because Bluetooth is divided into boot and a. The boot program can be downloaded using keil. T...
I recently started to develop things with 430 microcontrollers. The chip is MSP430F425, the software is AQ430, and when I download the program, the following prompt appears:.....Erasing Info MemoryDon...
Moderator:I just bought a USB emulator?I use the driver that comes with the CD and IAR3.41ADebug but it never works. There is always a communication error!!And then the Session...?Help!!...
[color=#333333]1. The use of resistors and capacitors near the optocoupler. Check the data sheet to see the recommended input current of the optocoupler. The input voltage minus the deep saturation vo...
When the battery voltage is higher than 3.0V, the pre-charge mode ends and enters the full-speed charge mode. At this time, the power management circuit opens S1 and S2, and makes S1 work in saturatio...