SPICOMMON_BUSFLAG_NATIVE_PINS :与 SPICOMMON_BUSFLAG_IOMUX_PINS 功能相同,表示使用本机(native)引脚进行 SPI 总线的配置。 具体可参照 spi_common.h 中的 SPICOMMON_BUSFLAG_ 配置项* intr_flags 中断分配标志可选项有: ESP_INTR_FLAG_IRAM:分配 IRAM 中的中断处理程序。 ESP_INTR_FLAG_SHARED:在多个处理...
允许从另一个核心禁用和启用外部中断。 多个外部中断源可以通过将ESP_INTR_FLAG_SHARED标志传递给esp_intr_alloc()来共享中断插槽。 从未固定到核心的任务调用esp_intr_alloc()时应小心。在任务切换期间,这些任务可以在核心之间迁移。因此,无法分辨哪个CPU分配了中断,这使得释放中断句柄变得困难,并且还可能导致调试困难。
如果不使用从机模式,则可以将其设置为0。 intr_alloc_flags: 含义:指定中断分配的标志位。 取值:可以使用ESP_INTR_FLAG_*系列宏来设置,用于指定中断服务程序的优先级、CPU核心等信息。通常可以选择 ESP_INTR_FLAG_IRAM 或 ESP_INTR_FLAG_SHARED。 如果不使用,写0即可 2.3 主机写入数据 写入数据的过程 主机发送...
PostbyKWolfe81»Fri Jan 07, 2022 8:17 pm Solved! Two things: 1) Forgot to set Code:Select all #defineCFG_TUSB_MCU OPT_MCU_ESP32S2 2) Looks like UART1 & USB share an interrupt. You need to set Code:Select all intr_alloc_flags= ESP_INTR_FLAG_SHARED; ...
int intr_alloc_flags = 0; #if CONFIG_UART_ISR_IN_IRAM intr_alloc_flags = ESP_INTR_FLAG_IRAM; #endif ESP_ERROR_CHECK(uart_driver_install(ECHO_UART_PORT_NUM, BUF_SIZE * 2, 0, 0, NULL, intr_alloc_flags)); ESP_ERROR_CHECK(uart_param_config(ECHO_UART_PORT_NUM, &uart_config)); ...
//分配中断 esp_err_t esp_intr_alloc( int source, //外部中断源,共计62个外部中断源 int flags, //ESP_INTR_FLAG_LEVEL1～6: 1为最低优先级 6为最高优先级; ESP_INTR_FLAG_SHARED:共享中断; ESP_INTR_FLAG_EDGE:边沿触发中断 intr_handler_t handler, //中断句柄,当优先级大于3时为NULL,因为...
- LEDC fade function installs ISR with flag (intr_alloc_flags | ESP_INTR_FLAG_IRAM) - both I2Cs are initiated with ISR flag 0 - ADC As well, I need USB and 2 I2S modules How to check if some of them ones uses shared interrupts?
I tried to enable the SPI slave interrupt using esp_intr_enable_source(ETS_SPI2_INTR_SOURCE) and whenever any byte I receive from the master, control goes to receive ISR and do some task for that I am using esp_intr_alloc(ETS_SPI2_INTR_SOURCE, ESP_INTR_FLAG_SHARED, spi_slave_isr_...
* is 0, it will default to allocating a non-shared interrupt of level * 1, 2 or 3. If this is ESP_INTR_FLAG_SHARED, it will allocate a shared * interrupt of level 1. Setting ESP_INTR_FLAG_INTRDISABLED will return * from this function with the interrupt disabled. * @param handler...
{ .sclk_io_num = LCD_CLK_GPIO, .mosi_io_num = LCD_MOSI_GPIO, .miso_io_num = -1, .quadwp_io_num = -1, .quadhd_io_num = -1, .intr_flags = ESP_INTR_FLAG_SHARED | ESP_INTR_FLAG_LOWMED, .max_transfer_sz = LCD_V_RES * LCD_H_RES * 2}; 3 第三个问题 E (12942) ...