问答

[i=s] 本帖最后由 tyw 于 2024-8-14 13:29 编辑 [/i] 在数据手册里面只写了引脚对应通道数，没写引脚对应adcx，还是说两个adc模块用的都是同一个引脚 [attach]2286304[/attach] [attach]2286310[/attach] [size=2][color=#ffffff][backcolor=purple] tyw 注[/backcolor][/color][/size]

请教一下，小华半导体的芯片 HC32F452和HC32F451由什么区别。

使用hc32f460，SPI1，发送0x55，测试时钟和MOSI引脚电平，变化正常。miso脚一直是高电平，但是SPI读出来数据一直是0x00,按理说应该是0xff。SPI 配置如下 #define SD_SPI_PERIPH_CLK FCG1_PERIPH_SPI1 #define SPI_SD CM_SPI1 #define SD_SPI_CS_PORT GPIO_PORT_A #define SD_SPI_CS_PIN GPIO_PIN_04 #define SD_SPI_PORT GPIO_PORT_A #define SD_SPI_SCK_PIN GPIO_PIN_05 #define SD_SPI_MISO_PIN GPIO_PIN_06 #define SD_SPI_MOSI_PIN GPIO_PIN_07 #define SD_SPI_SCK_PIN_FUNC (GPIO_FUNC_43) #define SD_SPI_MOSI_PIN_FUNC (GPIO_FUNC_40) #define SD_SPI_MISO_PIN_FUNC (GPIO_FUNC_41) static void App_SPIxCfg(void) { stc_gpio_init_t stcGpioInit; stc_spi_init_t stcSpiInit; stc_spi_delay_t stcSpiDelayCfg; (void)GPIO_StructInit(&stcGpioInit); stcGpioInit.u16PinDrv = PIN_HIGH_DRV; (void)GPIO_Init(SD_SPI_CS_PORT, SD_SPI_CS_PIN, &stcGpioInit); (void)GPIO_Init(SD_SPI_PORT, SD_SPI_SCK_PIN, &stcGpioInit); (void)GPIO_Init(SD_SPI_PORT, SD_SPI_MOSI_PIN, &stcGpioInit); stcGpioInit.u16PinDir = PIN_DIR_OUT; (void)GPIO_Init(SD_SPI_CS_PORT, SD_SPI_CS_PIN, &stcGpioInit); GPIO_SetFunc(SPI_SCK_PORT, SPI_SCK_PIN, SD_SPI_SCK_PIN_FUNC); GPIO_SetFunc(SPI_MOSI_PORT, SPI_MOSI_PIN, SD_SPI_MOSI_PIN_FUNC); GPIO_SetFunc(SPI_MISO_PORT, SPI_MISO_PIN, SD_SPI_MISO_PIN_FUNC); /* Clear initialize structure */ (void)SPI_StructInit(&stcSpiInit); (void)SPI_DelayStructInit(&stcSpiDelayCfg); /* Configure peripheral clock */ FCG_Fcg1PeriphClockCmd(SD_SPI_PERIPH_CLK, ENABLE); /* SPI De-initialize */ SPI_DeInit(SPI_UNIT); /* Configuration SPI structure */ stcSpiInit.u32WireMode = SPI_3_WIRE; stcSpiInit.u32TransMode = SPI_FULL_DUPLEX; stcSpiInit.u32MasterSlave = SPI_MASTER; stcSpiInit.u32ModeFaultDetect = SPI_MD_FAULT_DETECT_DISABLE; stcSpiInit.u32Parity = SPI_PARITY_INVD; stcSpiInit.u32SpiMode = SPI_MD_0; stcSpiInit.u32BaudRatePrescaler = SPI_BR_CLK_DIV4; stcSpiInit.u32DataBits = SPI_DATA_SIZE_8BIT; stcSpiInit.u32FirstBit = SPI_FIRST_MSB; (void)SPI_Init(SPI_UNIT, &stcSpiInit); stcSpiDelayCfg.u32IntervalDelay = SPI_INTERVAL_TIME_8SCK; stcSpiDelayCfg.u32ReleaseDelay = SPI_RELEASE_TIME_8SCK; stcSpiDelayCfg.u32SetupDelay = SPI_SETUP_TIME_1SCK; (void)SPI_DelayTimeConfig(SPI_UNIT, &stcSpiDelayCfg); SPI_Cmd(SPI_UNIT, ENABLE); }