Hello everyone, today we used DDS to make FM frequency modulation signal. Now I have a question to ask you, which is how to accurately measure the frequency deviation of the modulated signal. Now we h...
Updated March 2021stm32/boardctrl: Add MICROPY_BOARD_STARTUP hook.
stm32/spi: Fix baudrate calculation for H7 series.
stm32/powerctrl: Save and restore EWUP state when configuring standby.
stm32/main:...
Thanks to TI and EEworld for the prizes! This time I won a Xiaomi Youth Edition white mouse. In 2015, I participated in a Vishay event and won a Logitech M275 mouse. The Logitech mouse feels very good...
[i=s]This post was last edited by Xianjing on 2020-11-23 20:48[/i]I was able to get this board thanks to Electronic Engineering World for providing the AutoChips AC7801x motor demo board! The previous...
Programmable Gain Transimpedance Amplifier
Figure 9 shows a programmable gain transimpedance amplifier. This is a good conceptual design, but the on-resistance and leakage current of the analog s...[Details]
"Unity of knowledge and action" is the perfect interpretation of scientific researchers. This time, on the stage of the "Chip" Creation Competition, they practiced it personally and reached the pinna...[Details]
On October 28, Bloomberg reported that people familiar with the matter revealed that Apple is forming a team to focus on researching smart home devices and software to catch up in this field dominate...[Details]
1. Circuit design and input
Circuit design and input refers to inputting engineers' circuit ideas into EDA tools through certain standardized description methods. Commonly used design methods inc...[Details]
First, let’s look at Figure 3-1, which is the USB interface and power supply circuit we saw in the last class. Figure 3-1 USB interface and power supply circuit In the left picture, after passing t...[Details]
Test Methods: 1. Make menuconfig to remove the original touch program - Device Drivers - Input device support - generic input layer - Touchscreens s3c2410/s3c2440 ts make uImage Boot with the new...[Details]
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Function implemented: Complete the test of independent buttons. When one of the four buttons key1-key4 is pressed,...[Details]
Abstract: Combining the advantages of digital frequency synthesizer (DDs) and integrated phase-locked loop (PLL), a high-resolution, low-spurious, wide-band frequency synthesizer composed of DDS chip ...[Details]
Traditional navigation maps will usher in a transformation. "Getting on board" is the keyword for high-precision maps in 2020. Previously, some domestic and foreign automakers announced their coope...[Details]
Use the PicoScope 4262 high-resolution oscilloscope for troubleshooting and testing. Basic troubleshooting The PicoScope 4262 is a high-resolution oscilloscope that is ideal for general troub...[Details]
At present, robots have become one of the hottest topics in science and technology, and are gradually entering the global spotlight. Due to the different national conditions of each country, the st...[Details]
The controller and related important signals inside the navigation body need to be monitored and recorded as an important basis for normal navigation and fault judgment. When the important signals i...[Details]
The interrupt system of LPC824 is very powerful. To make good use of interrupts, you must first understand the entire interrupt system of LPC824. Let's discuss the NVIC interrupt system. In the LPC8...[Details]
MSP430 interrupt priority, open and close, interrupt nesting
The order of priority from high to low is:
PORT2_VECTOR (1 * 2u)
PORT1_VECTOR (4 * 2u)
TIMERA1_VECTOR (5 * 2u)
TIMERA0_VECTOR (6 *...[Details]
On November 5, the Ningxia Autonomous Region Development and Reform Commission issued a notice on promoting the healthy development of energy storage.
The document proposes to strictly impleme...[Details]