#ifdef OS_GLOBALS #define OS_EXT #else #define OS_EXT extern #endif The question may be a bit naive, I don't know if this is possible. In a project, many C files call this program, some C files define
Note: Dual color temperature dimming is mainly achieved by changing the capacitance of C1 and C2, which results in different delays in VDD power-on time. Multiple capacitors are increased in sequence
Shouldn't the PN532's IRQ pin generate an interrupt when a card is received? I'm using the serial port mode, but why is it that even though I set the IRQ pin to be enabled, it doesn't work? I can read
This section is the key content of this chapter. In this section, we need to master the formula method and the graphical method to calculate the Q point.Before learning, let's first understand a conce
I don't know if you have ever encountered garbled characters in UBOOT when converting serial port to USB? I use the sbc2410 board, which works fine on Vivi, but garbled characters appear when starting
I have been in the industry for more than four years and can use Verilog and C language proficiently; I have two years of experience in FPGA and ARM development; I am familiar with common EDA tools; M
Embedded System
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