写了个模拟I2C的代码,由于管脚复用其他功能,所以每次调用初始化GPIO保证状态,但是发现经常性的CLK不发数据。后来发现是因为GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;没写。为什么不写速度会导致初始化异常呢,关键信息不是pin,mode就够了?初学者求大神赐教GPIO_InitStruct.Pin = I2C_SDA_01_Pin;GPIO_InitStr...
I'm trying to figure out the maximum toggle speed supported by LPCXpresso LPC1343.Here is my code; #include "LPC13xx.h" #include "gpio.h" #include <cr_section_macros.h> #include <NXP/crp.h> __CRP const unsigned int CRP_WORD = CRP_NO_CRP ; #define LED_PORT 0// Port for led...
offering a suite of interfaces including USB2.0 High Speed, UART, I2C, SPI, JTAG, and GPIO. This module is designed to provide a seamless connection between your computer and various electronic devices, making it an indispensable part of your development kit. With its plugable USB to serial ad...
offering a wide range of connectivity options. With its USB2.0 High Speed interface, this module bridges the gap between USB and various protocols, including UART, I2C, SPI, JTAG, and GPIO. This makes it an indispensable component for projects that require seamless communication between different ...
一种高速ADC接口与GPIO接口相互测试的方法,在SOC上,选择8个GPIO口模拟数据线,1个GPIO口模拟时钟线,通过GPIO口不断循环的送出0x1,0x2,0x4,0x8,0x10,0x20,0x40,0x80这8组数据,给HS-ADC的clkin同时灌clk,在每个时钟的上升沿采集数据. A method of high-speed ADC interface GPIO interface testing each ...
We plan to connect the DDR signals to Agilex GPIO pins, use Agilex FPGA as the buffer and output the DDR signals to main platform. One thing we are curious on is how much the supported speed for DDR4 and DDR5. I got this information from datasheet...
I'm trying to figure out the maximum toggle speed supported by LPCXpresso LPC1343.Here is my code; #include "LPC13xx.h" #include "gpio.h" #include <cr_section_macros.h> #include <NXP/crp.h> __CRP const unsigned int CRP_WORD = CRP_NO_CRP ; #define LED_PORT 0// Port for led...
there are two more things you can try to speed up your GPIO performance:1) Program the FLASHTIM register to avoid wait cycles during flash accesses. In my application (running at 12 MHz on a LPC1114, too) it looks like this:main.h // Add missing LPC1114 register typedef struct { ...
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I'm trying to figure out the maximum toggle speed supported by LPCXpresso LPC1343.Here is my code; #include "LPC13xx.h" #include "gpio.h" #include <cr_section_macros.h> #include <NXP/crp.h> __CRP const unsigned int CRP_WORD = CRP_NO_CRP ; #define LED_PORT 0// Port for led...