电源问题:设备供电不足或不稳定,影响设备的正常操作。提供解决 mmc1 mmc_send_io_op_cond err: -110 错误的几种可能方法 重新插拔设备:尝试重新插拔SD卡或MMC设备,确保连接良好。 检查硬件:使用其他设备测试SD卡或MMC卡,确认是否为硬件故障。 更新驱动程序:访问设备制造商的官方网站,下载并安装最新的驱动程序。
先设置正确的总线模式 */ if (!mmc_host_is_spi(host)) mmc_set_bus_mode(host, MMC_BUSMODE_OPENDRAIN); /* 获取card的ocr寄存器 */ err = mmc_send_op_cond(host, 0, &ocr);
如果bit27是0那么SDIO卡是IOONLY。这种情况下直接跳到步骤5。如果bit27是1那么卡类型是SDIOCOMBO。继续下面的步骤。3如果SDIO卡类型是COMBO或者从前一个IOSENDOPCOND命令没有接收到响应那么仅继续执行此步骤。否则跳到步骤5。a发送带有以下参数的SDSDIOSENDCONDCMD8命令Bit31120x0反转比特Bit110x1电源电压值Bit0xAA...
return err; } return SDMMC_OK; } sdmmc_err_t sdmmc_init_io(sdmmc_card_t* card) { /* IO_SEND_OP_COND(CMD5), Determine if the card is an IO card.* Non-IO cards will not respond to this command.*/ sdmmc_err_t err = sdmmc_io_send_op_cond(card, 0, &card->oc...
= pattern) { ESP_LOGD(TAG, "%s: received=0x%x expected=0x%x", __func__, response, pattern); return ESP_ERR_INVALID_RESPONSE; } return ESP_OK; } esp_err_t sdmmc_send_cmd_send_op_cond(sdmmc_card_t* card, uint32_t ocr, uint32_t *ocrp) { esp_err_t err; /* If the host...
A Build Template for the STM32 Processor. Contribute to geoffreymbrown/STM32-Template development by creating an account on GitHub.
#define SDMMC_IO_SEND_OP_COND_DELAY_MS 10 /* These delay values are mostly useful for cases when CD pin is not used, and * the card is removed. In this case, SDMMC peripheral may not always return * CMD_DONE / DATA_DONE interrupts after signaling the error. These timeouts work ...