Just modify the cmd_ipc_func function in player_demo to the following:
static void cmd_ipc_func(char *wbuf, int wbuf_len, int argc, char **argv)
{uint8_t vol_temp;if (argc == 3strcmp(argv[1], "play") ...
[color=red]Question: [/color] [color=red]Only in myzr, after source, can we find the compilation tool chain. Our insmod requires root. [/color] [b][color=black]Answer: [/color][/b] [b][color=black]It ...
[i=s]This post was last edited by uuxz99 on 2020-10-5 16:54[/i]The AT-START-F403A evaluation board is equipped with an external 16M-byte NOR QSPI Flash ( EN25QH128A ) . The large enough capacity and s...
The measurement statistics function of oscilloscope and its application in automated testingGenerally, oscilloscopes have automatic measurement functions, such as frequency, period, maximum value, min...
[i=s]This post was last edited by Tas_Lan on 2022-10-22 14:56[/i]fpm383C fingerprint module
Module Introduction
The HLK-FPM383C series fingerprint module has complete fingerprint processing capabiliti...
The low power consumption in stop mode should be UA level, but mine is MA level. I have been confused for a long time. Can anyone help me? The board is the core board, LED, ASM1117, crystal oscillator...
Introduction to microcontroller pins 1. Power pin ●VSS: Ground. ●VCC: external 5V power supply. 2. External crystal oscillator pin ●XTAL1: When the microcontroller uses the internal oscillation c...[Details]
The method for measuring the capacity of a capacitor is shown in the frame below. Move the needle to the capacitor position (F position). There are two holes in the lower left corner of the digital ...[Details]
1 Introduction
With the rapid development of Internet technology and multimedia technology, voice communication technology is becoming more and more widely used and more and more valued . Toda...[Details]
Entering the second half of intelligence, with the support of some emerging technologies and technology companies. Relevant smart experiences represented by smart cockpits and smart driving are gradu...[Details]
【Abstract/Introduction】
I still remember that a few years ago, when wireless charging first appeared in large numbers at the civilian level, most of us were shocked by this "black te...[Details]
Shenzhen Megmeet Welding Technology Co., Ltd. (hereinafter referred to as "Megmeet"), the title sponsor of the 2022 Welding Robot Technology and Application Summit, is a holding subsidiary of She...[Details]
Although there are more than 600 member companies in 3GPP, the 5G standardization process is actually led by a few leading market players. Strategy Analytics' latest research analyzes the contributio...[Details]
1. Forward voltage decreases, dim light
A: One is that the electrode and the light-emitting material are in ohmic contact, but the contact resistance is large, which is mainly caused b...[Details]
This design uses the Lingyang 16-bit microcontroller SPCE061A to control the stepper motor. The square wave with timing output through the IO port is used as the control signal of the stepper motor...[Details]
The figure shows a trigger circuit composed of a NAND gate and a NOR gate, which is quite practical. A in the figure is an RS trigger composed of a NAND gate. A micro switch is connected to the R and...[Details]
1 Shortcut
Shortcut Key Function
Ctrl+B Remove all broken lines from the flowchart
Ctrl+E Switch between the front panel and flowchart windows
Ctrl+F Search for a LabVIEW object or text
Ctrl+...[Details]
Abstract: Aiming at the fully digital controlled UPS system, combined with the principle of phase-locked loop, a high-precision digital phase-locked control scheme based on DSP TMS320F2808 is propo...[Details]
In recent years, as components have become more complex and have multiple channels and other complex issues, testing has become more difficult and the structure has become more complex, increasing th...[Details]
Use SDCC+STM8Flash+STLink to build Linux development STM8 development environment. Corresponding MCS51, LPC and the like can also use SDCC 1. Install SDCC $ sudo apt-get install sdcc 2. Install s...[Details]
In Power Tip #42, we discussed emitter trackers used in MOSFET gate drive circuits and saw that drive currents in the 2A range can be achieved with small SOT-23 transistors. In this design tip, we ...[Details]