问答

目前开发I2C2的通信 看官方的SDK库demo里面对I2C2通信速率的配置如下：[color=#cccccc][backcolor=#1f1f1f][font=Consolas,][color=#6a9955] /* configure I2C timing */[/color] [color=#cccccc] [/color][color=#dcdcaa]i2c_timing_config[/color][color=#cccccc]([/color][color=#569cd6]I2C2[/color][color=#cccccc], [/color][color=#b5cea8]0[/color][color=#cccccc], [/color][color=#b5cea8]0x8[/color][color=#cccccc], [/color][color=#b5cea8]0[/color][color=#cccccc]);[/color] [color=#cccccc] [/color][color=#dcdcaa]i2c_master_clock_config[/color][color=#cccccc]([/color][color=#569cd6]I2C2[/color][color=#cccccc], [/color][color=#b5cea8]0x33[/color][color=#cccccc], [/color][color=#b5cea8]0xA8[/color][color=#cccccc]);[/color] 请问我如果要通过已知的目标通信速率（100-400khz） 如何实现通信速率的设置[/font][/backcolor][/color]

'begin(int, int, int)' is ambiguous Wire.begin(sda, scl, 100000);这个报错，但是无法初始化iic的。

网上找不到例子, 官方包里只有CTC_GPIO和CTC_LXTAL, 没有用USB_SOF的. 自己改了一下, rcu_periph_clock_enable (RCU_CTC); ctc_refsource_prescaler_config (CTC_REFSOURCE_PSC_DIV128); ctc_refsource_signal_select (CTC_REFSOURCE_USB_SOF); ctc_refsource_polarity_config (CTC_REFSOURCE_POLARITY_FALLING); ctc_hardware_trim_mode_config (CTC_HARDWARE_TRIM_MODE_ENABLE); ctc_counter_reload_value_config(127); ctc_clock_limit_value_config(2); ctc_counter_enable();结果一直也不成功. 哪位配成过的介绍一下?

void timer_hall_mode_config(uint32_t timer_periph, uint32_t hallmode);官方库里的这个霍尔模式函数到底整体是怎么用的，也没看到什么例程，我现在不是用这个模式驱动的bldc，别的都没问题，但是我想要记录无刷电机的移动的行程，记录不准，所以我想这用这个模式是不是就能准，有大佬知道原因吗

1. APM32F417IGT6和STM32F417IGT6的区别就是APM32F417IGT6多了一个DMC么?2. 是否能在stm32cubemx中当作STM32F427IGT6用?

想用逻辑分析仪捕捉GPIO信息，但是一直显示unkown signal，不知道是哪里的问题

/* * File: main.c * Author: Administrator * */ #pragma config FOSC = INTOSC, WDTE = OFF, PWRTE = OFF, MCLRE = ON #include void Delay_50us(unsigned int n) { unsigned char i; while (n--) { for (i = 0; i < 104; i++); } } void Delay_ms(unsigned int n) { while (n--) { Delay_50us(20); } } void main(void) { TRISCbits.TRISC0 = 0; LATCbits.LATC0 = 1; while (1) { LATCbits.LATC0 = 0; Delay_ms(500); LATCbits.LATC0 = 1; Delay_ms(500); } return; } 这个程序闪灯不生效

在生成工程时，出现如下错误： Opening project creator from C:/Users/XXX/ModusToolbox/tools_3.2/project-creator/project-creator.exe Project Creator Status: Project: Hello_World_1 Location: D:/Infineon/03/Hello_World_1 Status: failed Messages: [1]: [INFO] Log file= "C:/Users/XXX/AppData/Local/Temp/device-configurator-cli/device-configurator-cli-20240626.170103.333-14676.log" [2]: [INFO] Command line= "C:/Users/XXX/ModusToolbox/tools_3.2/device-configurator/device-configurator-cli.exe --build D:/Infineon/03/Hello_World_1/bsps/TARGET_APP_CYW920829M2EVK-02/config/design.modus --readonly" [3]: [INFO] Log file= "C:/Users/XXX/AppData/Local/Temp/hardware-config-server/hardware-config-server-20240626.170104.542-5352.log" [4]: [INFO] Command line= "C:/Users/XXX/ModusToolbox/tools_3.2/hardware-config-server/hardware-config-server.exe --config D:/Infineon/03/Hello_World_1/bsps/TARGET_APP_CYW920829M2EVK-02/config/design.modus" [5]: [INFO] Library paths: "D:/Infineon/03/mtb_shared/mtb-pdl-cat1/release-v3.10.1/props.json;C:/Users/XXX/.modustoolbox/global/device-db/release-v4.16.0/props.json" [6]: Error loading file. The design file was locked by another host. The file is locked by "闂佽法鍠愰弸濠氬箯閻戣姤鏅搁柡鍌樺�栫�氳瀵� [D:/Infineon/03/Hello_World_1/bsps/TARGET_APP_CYW920829M2EVK-02/config/design.modus] [7]: Failed to load 'D:/Infineon/03/Hello_World_1/bsps/TARGET_APP_CYW920829M2EVK-02/config/design.modus'. [8]: Failed to export the "Hello_World_1" application to Eclipse IDE for ModusToolbox闁筹拷 Unable to import the project: Hello_World_1. Try "Import Existing Application" from the quick-panel. If issues persist, retry project creator. No new/valid projects found.

使用官方的库函数，ADC2根本无法初始化dma_parameter_struct dma_data_parameter; rcu_periph_clock_enable(RCU_GPIOF); rcu_periph_clock_enable(RCU_ADC2); rcu_periph_clock_enable(RCU_DMA1); /*配置PF*/ gpio_init(GPIOF, GPIO_MODE_AIN, GPIO_OSPEED_50MHZ, GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10); /* ADC DMA_channel configuration */ dma_deinit(DMA1, DMA_CH4); /* initialize DMA single data mode */ dma_data_parameter.periph_addr = (uint32_t)(&ADC_RDATA(ADC2)); dma_data_parameter.periph_inc = DMA_PERIPH_INCREASE_DISABLE; dma_data_parameter.memory_addr = (uint32_t)(&ADC2_ConvertedValue); dma_data_parameter.memory_inc = DMA_MEMORY_INCREASE_ENABLE; dma_data_parameter.periph_width = DMA_PERIPHERAL_WIDTH_16BIT; dma_data_parameter.memory_width = DMA_MEMORY_WIDTH_16BIT; dma_data_parameter.direction = DMA_PERIPHERAL_TO_MEMORY; dma_data_parameter.number = M1*N1; dma_data_parameter.priority = DMA_PRIORITY_HIGH; dma_init(DMA1, DMA_CH4, &dma_data_parameter); dma_circulation_enable(DMA1, DMA_CH4); /* enable DMA channel */ dma_channel_enable(DMA1, DMA_CH4); /*ADC配置*/ adc_deinit(ADC2); /* ADC mode config */ adc_mode_config(ADC_MODE_FREE); /* ADC contineous function enable */ adc_special_function_config(ADC2, ADC_CONTINUOUS_MODE, ENABLE); /* ADC scan mode disable */ adc_special_function_config(ADC2, ADC_SCAN_MODE, ENABLE); /* ADC data alignment config */ adc_data_alignment_config(ADC2, ADC_DATAALIGN_RIGHT); /* ADC channel length config */ adc_channel_length_config(ADC2, ADC_REGULAR_CHANNEL, M1); /*ADC0规则通道配置*/ adc_regular_channel_config(ADC2, 0, ADC_CHANNEL_7, ADC_SAMPLETIME_239POINT5); adc_regular_channel_config(ADC2, 1, ADC_CHANNEL_8, ADC_SAMPLETIME_239POINT5); adc_regular_channel_config(ADC2, 2, ADC_CHANNEL_6, ADC_SAMPLETIME_239POINT5); adc_regular_channel_config(ADC2, 3, ADC_CHANNEL_5, ADC_SAMPLETIME_239POINT5); /* ADC trigger config */ adc_external_trigger_source_config(ADC2, ADC_REGULAR_CHANNEL, ADC0_1_2_EXTTRIG_REGULAR_NONE); adc_external_trigger_config(ADC2, ADC_REGULAR_CHANNEL, ENABLE); /* enable ADC interface */ adc_enable(ADC2); delay_ms(1); /* ADC calibration and reset calibration */ adc_calibration_enable(ADC2); /* ADC DMA function enable */ adc_dma_mode_enable(ADC2); /* ADC software trigger enable */ adc_software_trigger_enable(ADC2, ADC_REGULAR_CHANNEL);

[float=left][color=rgb(40, 40, 40)][backcolor=rgb(255, 255, 255)][font=微软雅黑, "][size=16px][color=rgb(47, 47, 47)][size=14px][align=left]这是部分代码：[/align][align=left]#include [/align] [align=left]#define uchar unsigned char // 以后unsigned char就可以用uchar代替[/align][align=left]#define uint unsigned int // 以后unsigned int 就可以用uint 代替[/align] [align=left]sbit LcdRs_P = P2^0; // 液晶的RS管脚 [/align][align=left]sbit LcdRw_P = P2^1; // 液晶的RW管脚 [/align][align=left]sbit LcdEn_P = P2^2; // 液晶的EN管脚[/align] [align=left]// 毫秒级的延时函数，time是要延时的毫秒数[/align] [align=left]void DelayMs(uint time)[/align][align=left]{[/align][align=left] uint i,j;[/align][align=left] for(i=0;i

[i=s] 本帖最后由 slf123123 于 2021-4-19 09:13 编辑 [/i] [p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]typedef unsigned long DWORD;[/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]#pragma pack(push) #pragma pack(1) typedef struct si { DWORD a:4; DWORD b:7; DWORD c:3; DWORD d:1; [/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="] DWORD e:3; DWORD f:14; }si; #pragma pack(pop) [/font][/backcolor][/color][/p] [p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="] 如上所示这个结构体对齐后是四个字节[/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]然后[/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]uint8 buff[4];[/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]怎么将buff赋值给整个结构体[/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]struct si su={buff[0]，buff[1]，buff[2]，buff[3]}；[/font][/backcolor][/color][/p][p=24, null, left][color=rgb(34, 34, 38)][backcolor=rgb(255, 255, 255)][font="]这样赋值不行吗[/font][/backcolor][/color][/p]