I am trying to use a Polaroid 32GB Class 10 SD card and I get the error: mmc0: Timeout waiting for hardware interrupt. over and over again. The Pi works fine with a 16GB class 10 card. Any ideas what's going on. I've …My apologies if there's a better way of reporting problems with SD cards seeing they're quite common. OS and board specific stuff I am using model B, not overclocked, headless. cmdline.txt dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdb...Time out waiting for hardware cmd interrupt Deb 11. Installation Home Assistant OS. mgsnell201 (Mgsnell201) October 2, 2021, 4:10am 1. I have followed the directions for home assistant supervised on Debian 11 at Installing Home Assistant Supervised on Debian 11 but no joy. I can’t get past section one, when I try to boot I get …Per JEDEC spec, it is not recommended to use CMD13 to get card status after speed mode switch. below are two reason about this: 1. CMD13 cannot be …Drying. AEC manufactures wide range of dryers in the industry for those processing as little as 5 lbs/hr to over 5,700 lbs/hr With products that range from small, energy efficient portable units to large central systems, AEC has the dryer you need. Types of dryers include: Desiccant twin bed, desiccant wheel, compressed air and hot air.In mmc_blk_cmd_recovery(), re-tuning would fail before sending CMD13 on our specific board. This may be some issue related to specific eMMC card we are investigating. The above is just background introduction, and you may not care about that:) I'd like to have some queries on CMD12 usage in MMC driver. 1.On Tue, Feb 7, 2012 at 11:38 AM, Chris Ball <cjb@xxxxxxxxxx> wrote: > Hi, adding linux-mmc@ to the thread, > On Mon, Feb 06 2012, Jeff Chua wrote: >> The SD slot on the Lenovo X220 is doesn't seems to work on >> Linux-3.3.0-rc2.I haven't use SD for a while, so don't know which >> linux version will work on the X220. >> # cat .config >> …OEM Solutions. Caterpillar OEM Solutions provide partial machine configurations, including bare chassis, systems and first-fit components, to create specialty machines and unique equipment to meet your project …01h09m 2023 13 Sep Merced, CA (MCE/KMCE) PDT Fresno, CA (FAT/KFAT) EC35 ( N833CS) Landed 16:41 PDT Landing time derived from ADS-B/Radar data 00h23m …- 3 - if there is any other operation to implement in addition to specification in the datasheet or jedec standard, please contact each branch office or Sep 22, 2022 · I have a notebook with Intel_N5000_CPU, Win_10.0.19044.1288, and it's hard disk is a 32G eMMC(Spec v5.1). What i want to do is issue MMC/eMMC command through DeviceIoControl, e.g., CMD17 to read single-block data, CMD13 to check status of device Actually, i found IOCTL_STORAGE_PROTOCOL_COMMAND probably meet this requirement 1. Caution The Issues are strictly limited for the reporting of problem encountered with the software provided in this project. For any other problem related to the STM32 product, the performance, the hardware characteristics and boards, the tools the environment in general, please post a topic in the ST Community/STM32 MCUs forum. …Description. If the software driver issues CMD13 to read the card bus when a CMD19 bus-test transaction is in progress on the bus, then the interface controller is affected by the CMD13 waiting for CRC status on the bus-test data. This can be avoided by not sending a CMD13 when bus testing is in progress.CMD13: SEND_STATUS [31:0] Stuff Bits: R2: Asks the selected card to send its status register. CMD16: 010000: SET_BLOCKLEN [31:0] Block Length: R1: Sets a block length (in bytes) for all following block commands (read and write) (note 2) of a Standard Capacity Card. Block length of the read and write commands are fixed to 512 bytes in SDHC and ...Mar 3, 2010 · 1. The Sandisk SDCard spec says this: "In SPI mode, as opposed to SD mode, ACMD41 (or CMD1 as well, for 2.1mm-SD Card) has no operands and does not return the contents of the OCR register. Instead, the host may use CMD58 (available in SPI mode only) to read the OCR register. May 25, 2018 · After receiving a block of data and completing the CRC check, the Device will begin writing and hold the DAT0 line low. The host may poll the status of the Device with a SEND_STATUS command(CMD13) at any time, and the Device will respond with its status (except in Sleep state). Time out waiting for hardware cmd interrupt Deb 11. Installation Home Assistant OS. mgsnell201 (Mgsnell201) October 2, 2021, 4:10am 1. I have followed the directions for home assistant supervised on Debian 11 at Installing Home Assistant Supervised on Debian 11 but no joy. I can’t get past section one, when I try to boot I get …CMD_13：cmd13获取卡的状态，其实本质就是读 Card_Status 寄存器 . CMD_16：设置SD卡的块大小,在CSD寄存器有对应的操作描述， CMD17：设置SD卡按照单个区块进行操作， 使SD卡进入传输状态,读取单个块。这个命令需要附带对应的地址参数- 3 - if there is any other operation to implement in addition to specification in the datasheet or jedec standard, please contact each branch office or Booting from e-MMC Embedded Memory. To implement Micron’s e-MMC solution as the single nonvolatile memory device in an embedded system, the system must boot up from the e-MMC device. e-MMC embedded memory does not inherently support execute in place (XIP). Oper-ating system (OS) code and boot code can be stored in the e-MMC device, …Smart | Connected | Secure | Microchip TechnologyI recently formatted my HP 15 and I watched as it had boxes popping up and off. There were lots of command prompts opening and closing rapidly on the left), loading bars, etc, all seemed normal until …How To Download Latest TWRP Recovery On Any Android. Download the Gapps for CM 13 From the download section. Now connect your device to PC and transfer the Gapps Zip file. Make sure you have flashed the CM 13 ROM File on your device. How to Install CM13 (CyanogenMod 13) Via TWRP Recovery. Now Boot Your Device Into …RPi 4 stuck during UEFI init #28. Closed. sassmann opened this issue on Apr 1, 2020 · 4 comments. closed this as completed on Apr 1, 2020. Sign up for free to join this conversation on GitHub . Already have an account?Hi, All. I have a notebook with Intel_N5000_CPU and Win_10.0.19044.1288, and it's hard disk is a 32G eMMC(Spec v5.1). As i know, Windows encapsulate a SFFDISK(SD/SDIO/MMC) stack in kernel, which using SD-Bus stack. Actually i found 2 IOCTL OpCodes,…R1. A host sends the bus test data pattern to a Device. NOTE 1 - CMD7, R1 while selecting from Stand-By State to Transfer State; R1b while selecting from Disconnected State to Programming State. NOTE 2 - CMD12, RCA in CMD12 is used only if HPI bit is set. The argument does not imply any RCA check on the device side. IC next to crystal, marked 36TI R5R gets extremely hot almost immediately after powering up the board. Reset button does nothing. The "On" and "L" leds don't even blink when it's pressed. In the IDE, under tools/get board info, it gives me the serial number and other info for the board, so it appears to be talking to the computer just fine.The CMD13 polling is only needed for the command with R1B Resp. For the command with R1 Resp, such as open-ended multiple block read/write (CMD18/25) commands, the device will just wait for its next paired command. There is no need to poll device status through CMD13. Meanwhile, based on the original change commit (mmc: …Nov 17, 2016 · On 16/11/16 12:51, Ulf Hansson wrote: > In cases when the mmc host doesn't support HW busy detection, polling for > busy by using CMD13 is beneficial. The reasons have already been explained > in earlier change logs. > > To allow polling with CMD13, let's provide MMC_TIMING_MMC_HS200 as the > timing parameter to __mmc_switch (), which makes ... CMD13 shall not be issued during data transfer. Normally, data transfer should be stopped by setting TLEN instead of using CMD12. CMD23 and CMD55 functions are included in UHS-II packet functions. CMD0 Terminate SD transaction and reset SD-TRAN state.The time has come that I finally need to look into getting SD cards to work with the stm32. Looking online there seems to be a few really great resources for connecting to a SD card over spi from a smaller lower power however I could not find any guides for the STM32 line of chips.4.3、SD卡写操作. 注意：发送ACMD之前，必须先发送CMD55，通知SD卡，接下来要发送的是应用命令 (APPCMD)，而非标准命令. 01、SD卡简介SD卡（SecureDigital MemoryCard）即：安全数码卡，它是在MMC的基础上发展而来，是一种基于半导体快闪记忆器的新一代记忆设备，它被 ...CMD13 after CMD42. 2. LOCK_UNLOCK_FAILED (bit 24 of the card status register) as the result of CMD42 can be seen in the response of either CMD42 or the following CMD13. TN-SD-01: Enabling SD/uSD Card Lock/Unlock in Linux® CMD42 Parameter and Result CCM005-524338224-10494 tnsd01_enable_sd_lock_unlock_ in_Linux.pdf - Rev. A 8/17 …I am looking for an example to for the AM335x /MMC module to interface with the SD card. My problem is the ACMD13 (SD Status) and the ACMD51 (SCR Register). These commands are supposed to have 512 bits (64 bytes) Block data sent to the host via the DATA register. The commands are sent correctly ...May 25, 2018 · After receiving a block of data and completing the CRC check, the Device will begin writing and hold the DAT0 line low. The host may poll the status of the Device with a SEND_STATUS command(CMD13) at any time, and the Device will respond with its status (except in Sleep state). 1. I have multiple 512MB SDSC cards that seem to block after getting a read single block command. I get back the expected data which I wrote before, but the card seems to stop returning anything but 0xFF afterwards. Even simple commands like CMD13 (request status) do not send back anything but 0xFF. While these commands did return …R6, R7 RCA management (SD only) R1b assert the BUSY signal and respond with R1. If the busy signal is asserted, it is done two clock cycles (Nsr time) after the end bit of the command. The DAT0 line is driven low. DAT1-DAT7 lines are driven by the card though their values are not relevant.Apr 6, 2021 · The three CMD variants—Cat CMD5 (5” display), CMD8 (8” display), and CMD13 (13.3” display)—designed to provide operators easy access to current operating data and alarms for engines. The new... Jan 12, 2023 · connect a join node to the exec node, set it to 24 messages and you will get an array with 24 elements in the output. In the gauge nodes use: { { payload [0] }}, { { payload [1] }} etc as value. Here are two possible approaches. One uses your original single long command, the other uses 24 short commands. CMD23 is used to configure block counts before reading/writing. With CMD23, we could always avoid to use CMD17 (single block READ), CMD24 (single block WRITE) & CMD12 (stop data transmission). We could support the two scenarios in below....Caterpillar Operations and Maintenance Manual - C13 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Caterpillar Operations and Maintenance Manual - C13As it turns out you can read this partition on some devices. It is possible if you have a "CMD12" emmc. If it is a "CMD13" emmc it doesn't work. Read operations happen from within linux, also information about the emmc is gathered there, use …Hit any key to stop autoboot: 0. lining debug abortboot return abort = 0. ptn 0 name='boot' start=53248 len=27262976. booti: mmc read kernel pte->start = …Actually, most of the info/code you may find on SD initialization is either dated or innacurate, since it predates SDHC & SDXC by years. The procedure is more complicated nowadays, as it forces you to deal with old hardware in a backwards-compatible way.mmc0: Timeout waiting for hardware interrupt - cmd25. mmc0: Timeout waiting for hardware interrupt - cmd12. mmc0: Timeout waiting for hardware interrupt - cmd13. …Linux/AM3352: MMC3 communication issue. communication over mmc3 instance on am3352 ( in device tree node : mmc@47810000) to sdcard connected over sdio doesn't seem to work. I suspect that my settings in device tree are not right, specifically the dma configuration. But I couldn't figure out what would be the correct settings.If you search for "stuff bits" or > "CMD13" in the spec, you will get the information. > > > > > The SPI responses are not well implemented, in this case (CMD13) > > it is incorrect, we should return a 2-byte R2. Your patch > > correctly skip the RCA check, but we still invalid data. > > This is already handled in ssi-sd.c in SPI mode.Flight status, tracking, and historical data for Cal-Star Medical 13 (CMD13) including scheduled, estimated, and actual departure and arrival times.- 3 - if there is any other operation to implement in addition to specification in the datasheet or jedec standard, please contact each branch office or Aug 5, 2016 · Why don’t you uncomment the BOARDID line in the jetson-tk1.conf in the linux_for_tegra folder where the flasher is located. That probably should override the problem. mmc0: starting CMD13 arg 00000000 flags 000001b5 mmc0: blksz 64 blocks 1 flags 00000200 tsac 100 ms nsac 0 mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0x00000000 mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1 mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2 mmc0: req done (CMD13): 0: 00000920 00000000 00000000 …Smart | Connected | Secure | Microchip TechnologyMay 4, 2016 · CMD13 cannot be guaranteed due to the asynchronous operation. Therefore it is not recommended to use CMD13 to check busy completion of the timing change indication. 2. After switch to HS200, CMD13 will get response of 0x800, and even the busy signal gets de-asserted, the response of CMD13 is aslo 0x800. Here's an issue encountered where we have worked around the problem, but the larger issue remains and should be addressed in FSBL and possibly the tooling between PCW and FSBL. We boot from mmc0 (eMMC), jump from FSBL directly to linux. mmc1 is an accessory card. On most of our systems, the mmc1 would fail with ><p></p><code>[ 10.205936] …Set the eMMC data sector size to 4KB by disabling emulation. Create general purpose partition. Enable the enhanced user area. Enable write reliability per partition. Print the response to STATUS_SEND (CMD13). Enable the boot partition. Set Boot Bus Conditions. Enable the eMMC BKOPS feature. Permanently enable the eMMC H/W Reset feature.Part #: KLMBG2JETD-B041. Description: Samsung eMMC Product family eMMC 5.1 Specification compatibility. Page: 28. Manufacturer: Samsung semiconductor.Apr 6, 2021 · The three CMD variants—Cat CMD5 (5” display), CMD8 (8” display), and CMD13 (13.3” display)—designed to provide operators easy access to current operating data and alarms for engines. The new... Flight status, tracking, and historical data for Cal-Star Medical 13 (CMD13) including scheduled, estimated, and actual departure and arrival times.R6, R7 RCA management (SD only) R1b assert the BUSY signal and respond with R1. If the busy signal is asserted, it is done two clock cycles (Nsr time) after the end bit of the command. The DAT0 line is driven low. DAT1-DAT7 lines are driven by the card though their values are not relevant.Step2. Checking the Queue Status(CMD13) CQE发出CMD13读QSR(Queue Status Register)来决定执行哪个task, device会反应个R1, 这个R1就是32bit value，每个bit对应一个task，如果bit=0，那这个task没有ready for execution，bit=1就是ready了。 Step3. Execution of a Queued Task(CMD46/CMD47)CMD13 - Addressed card sends its status register. This function waits the clear of the busy flag. Returns true if success, otherwise false . References CARD_STATUS_READY_FOR_DATA, driver_get_response, driver_send_cmd, sd_mmc_card::rca, sd_mmc_debug, sd_mmc_is_spi, …Jun 9, 2021 · How To Reproduce. I'm trying to set my MMC into sleep state when not using it. After setting it into standby mode and sending the CMD5 with the 15bit set to 1, the card goes into idle state and it's missing from the HAL_MMC_CardStateTypeDef values, it would be nice to have it declared there. OEM Solutions. Caterpillar OEM Solutions provide partial machine configurations, including bare chassis, systems and first-fit components, to create specialty machines and unique equipment to meet your project needs. Technology. Whether it’s telematic data from equipped machines that gives you better insight into your operation. 4.3、SD卡写操作. 注意：发送ACMD之前，必须先发送CMD55，通知SD卡，接下来要发送的是应用命令 (APPCMD)，而非标准命令. 01、SD卡简介SD卡（SecureDigital MemoryCard）即：安全数码卡，它是在MMC的基础上发展而来，是一种基于半导体快闪记忆器的新一代记忆设备，它被 ...As it turns out you can read this partition on some devices. It is possible if you have a "CMD12" emmc. If it is a "CMD13" emmc it doesn't work. Read operations happen from within linux, also information about the emmc is gathered there, use …The US-based company unveiled its CMD series of wheelhouse displays, Cat CMD5 with a 5-in display, CMD8 and CMD13 which has a 13.3-in display, to monitor engine parameters on vessels. Caterpillar said these second-generation Cat marine displays can seamlessly integrate with other bridge technology, are type-approved and …Jan 2, 2024 · CMD13 (Calstar) - Live flight status, scheduled flights, flight arrival and departure times, flight tracks and playback, flight route and airport The world’s most popular flight tracker. Track planes in real-time on our flight tracker map and get up-to-date flight status & airport information. May 25, 2018 · After receiving a block of data and completing the CRC check, the Device will begin writing and hold the DAT0 line low. The host may poll the status of the Device with a SEND_STATUS command(CMD13) at any time, and the Device will respond with its status (except in Sleep state). After receiving a block of data and completing the CRC check, the Device will begin writing and hold the DAT0 line low. The host may poll the status of the Device with a SEND_STATUS command(CMD13) at any time, and the Device will respond with its status (except in Sleep state).Usually I have kept CS asserted for entire transactions. At one point, I even extended this to keeping CS asserted between CMD24_WRITE_BLOCK or CMD25_WRITE_MULTIPLE_BLOCK and the following CMD13_SEND_STATUS. However, an Integral SD card seemed to object to that and would give no response to the …After receiving a block of data and completing the CRC check, the Device will begin writing and hold the DAT0 line low. The host may poll the status of the Device with a SEND_STATUS command(CMD13) at any time, and the Device will respond with its status (except in Sleep state).The SDIO controller can send CMD13 during card programming mode to check the card status. If software sends an R1b response type command (e.g., CMD38, CMD6) followed by a CMD13 (status check), the controller sends the transfer complete before completing busy due to the CMD13 status check. This can be avoided by not sending a CMD13 …do not check for null and checked at the same time. if the object is null, you will get Null Reference exception. SO, try to check one condition at a time. Quote: lblEmail = grid1.Rows [0].Cells [3].Text.ToString (); every time you are assigning text to same object. if "lblEmail" is label then how can you assign text to label object.- 3 - if there is any other operation to implement in addition to specification in the datasheet or jedec standard, please contact each branch office or Our Partners for industrial display and Panel PC solutions. Hatteland Technology is a well-established distributor of display solutions with over 30 years of experience, a broad field of expertise and a mentality that promotes technological advancements. We aim to be your valued partner and advisor when choosing your optimal display solution.Can be either one of the following errors: The read only section of the CSD does not match the card content. An attempt to reverse the copy (set as original) or permanent WP …May 19, 2016 · Chaotian Jing (井朝天) May 19, 2016, 8:47 a.m. UTC. Per JEDEC spec, it is not recommended to use CMD13 to get card status after speed mode switch. below are two reason about this: 1. CMD13 cannot be guaranteed due to the asynchronous operation. Therefore it is not recommended to use CMD13 to check busy completion of the timing change ... Other Parts Discussed in Thread: CSD Hi Folks, I am running Linux kernel 3.8.13-00794-g59be459-dirty with buildroot-fs on Beagle-Bone-Black. I have installedThis thread has been locked. If you have a related question, please click the "Ask a related question" button in the top right corner.The newly created question will be automatically linked to this question.4.3、SD卡写操作. 注意：发送ACMD之前，必须先发送CMD55，通知SD卡，接下来要发送的是应用命令 (APPCMD)，而非标准命令. 01、SD卡简介SD卡（SecureDigital MemoryCard）即：安全数码卡，它是在MMC的基础上发展而来，是一种基于半导体快闪记忆器的新一代记忆设备，它被 ...Aug 29, 2022 · Switch off your phone and restart your device into TWRP Recovery mode. (Press and hold Volume down + Power button together for a few seconds) The handset will reboot into the TWRP Recovery. Here, you will need to tap on Install. Choose the CyanogenMod 13 Gapps (zip) file from the storage > Swipe the slider to install it. How To Download Latest TWRP Recovery On Any Android. Download the Gapps for CM 13 From the download section. Now connect your device to PC and transfer the Gapps Zip file. Make sure you have flashed the CM 13 ROM File on your device. How to Install CM13 (CyanogenMod 13) Via TWRP Recovery. Now Boot Your Device Into …Time out waiting for hardware cmd interrupt Deb 11. Installation Home Assistant OS. mgsnell201 (Mgsnell201) October 2, 2021, 4:10am 1. I have followed the directions for home assistant supervised on Debian 11 at Installing Home Assistant Supervised on Debian 11 but no joy. I can’t get past section one, when I try to boot I get …Circuit and Interfacing. SD card has a native host interface apart from the SPI mode for communicating with master devices. The native interface uses four lines for data transfer where the microcontroller has SD card controller module and it needs separate license to use it. Since the SPI is a widely used protocol and it is available in most ... Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyAug 29, 2022 · Switch off your phone and restart your device into TWRP Recovery mode. (Press and hold Volume down + Power button together for a few seconds) The handset will reboot into the TWRP Recovery. Here, you will need to tap on Install. Choose the CyanogenMod 13 Gapps (zip) file from the storage > Swipe the slider to install it. Step2. Checking the Queue Status(CMD13) CQE发出CMD13读QSR(Queue Status Register)来决定执行哪个task, device会反应个R1, 这个R1就是32bit value，每个bit对应一个task，如果bit=0，那这个task没有ready for execution，bit=1就是ready了。 Step3. Execution of a Queued Task(CMD46/CMD47)Usually I have kept CS asserted for entire transactions. At one point, I even extended this to keeping CS asserted between CMD24_WRITE_BLOCK or CMD25_WRITE_MULTIPLE_BLOCK and the following CMD13_SEND_STATUS. However, an Integral SD card seemed to object to that and would give no response to the …CMD13 SEND_STATUS Mandatory Card Status includes only SDMEM information /* 获取卡的状态 */ CMD15 GO_INACTIVE_STATE Mandatory Mandatory CMD16 SET_BLOCKLEN Mandatory /* 设置SD卡的块大小,CSD寄存器有描述. */ CMD17 READ_SINGLE_BLOCK Mandatory /* 使SD卡进入传输状态,读取单个块 */Set the eMMC data sector size to 4KB by disabling emulation. Create general purpose partition. Enable the enhanced user area. Enable write reliability per partition. Print the response to STATUS_SEND (CMD13). Enable the boot partition. Set Boot Bus Conditions. Enable the eMMC BKOPS feature. Permanently enable the eMMC H/W Reset feature. NET. When I insert a record in MS-Access Database. It shows that the record is saved, No Errors Occur. But When I reload the project, the record which I added is not found in Database. Please help. DataSet ds13 = new DataSet (); OleDbDataReader dr13; OleDbCommand cmd13 = new OleDbCommand (); cmd13.CommandType = …Jun 24, 2016 · mmc0: starting CMD13 arg 00010000 flags 00000195. sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001. mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000. mmc0: clock 52000000Hz busmode 2 powermode 2 cs 0 Vdd 7 width 3 timing 1. sdhci sdhci-esdhc-imx.0: desired SD clock: 52000000, actual: 45000000 Because of some uncertain factors, such as worse card or worse hardware, DAT[3:0](the data lines) may be pulled down by card, and mmc controllerMar 29, 2022 · Power Supply: USB. SanDisk Edge 8GB. Micro SD card breakout board with SPI connection (3V3 power) ESP32-C3-DevKitC-02. Circuit laid out on a breadboard with minimal distance in between (60mm max) NO PULL-UPs (as far as I know ESP32-C3 does not require one) /storage/sd_card/sdspi example with following modification for the GPIOs. 1、初始化步骤：. （1） 延时至少 74clock，等待SD卡内部操作完成，在MMC协议中有明确说明。. （2） CS低电平选中SD卡。. （3） 发送 CMD0 ，需要返回 0x01 ，进入 Idle 状态. （4） 为了区别SD卡是2.0还是1.0，或是MMC卡，这里根据协议向上兼容的原理，首先发送 …I am looking for an example to for the AM335x /MMC module to interface with the SD card. My problem is the ACMD13 (SD Status) and the ACMD51 (SCR Register). These commands are supposed to have 512 bits (64 bytes) Block data sent to the host via the DATA register. The commands are sent correctly ...ASSORTED/RANDOM CMD1 CMD2 CMD3 CMD4 CMD5 CMD6 CMD7 CMD8 CMD9 CMD10 CMD11 CMD12 CMD13 CMD14 CMD15 CMD16 CMD17 CMD18 CMD19 CMD20 CMD21 CMD22 CMD23 CMD24 CMD25 CMD26 CMD27 CMD28 CMD29 CMD30 CMD31 CMD32 CMD33 CMD34 CMD35 CMD36 CMD37 CMD38 CMD39 CMD40 CMD41. …SD CARDS The SD card is a memory card that was introduced in 1999 by the SD Association (SDA) to extend the capabilities of the multimedia card (MMC) for use in portable devices.The CMD13 polling is needed for commands with R1B responses. In commit a0d4c7eb71dd ("mmc: block: Add CMD13 polling for MMC IOCTLS with R1B response"), the intent was to introduce this for requests targeted to the RPMB partition. However, the condition to trigger the polling loop became.