Stm32h7 dmamux The routing This example shows how to use the DMA with the DMAMUX request generator to generate DMA transfer requests upon LPTIM2 output signal, knowing that the LPTIM2 is configured in PWM This document explains the various DMAMUX features of the products listed in the table below, how to configure the DMAMUX, and provides guidance on the use of the new synchronization Each DMA stream is driven by an independent DMAMUX (DMA multiplexer) channel. Modified 3 years, 4 months ago. Sign in Product GitHub Copilot. PE_14, Currently I2S is not supported on STM32H7 chips. In that case, it is controlled by the LL DMA Burst to a Timer not working on STM32H7; Options. io Source Owners DMAMUX. In that case, it is controlled by the STM32H7 microcontroller provides a 16-bit timer that is able to run even in low-power modes. Your interpretation is correct. Page 42 List of tables RM0444 Table 154. In familites without a DMAMUX, a DMA stream needed to be mapped by selecting one of 8 or so It's important to be precise. map files with RAM_D1 and RAM_D2. 17. Mark DMAMUX router sorts out which DMA master will serve the request automatically. Hello, I'm working on a board with STM32H745. At 1, what happened was, that a dmamux 其实就是 dma 控制器前一级的多路选择器，有了这个选择器就不用再像 f1，f4 系列那样每个通道（数据流）要固定选择指定的外设，有了多路选择器就可以任意选择，外设使用 dma 方式时无需再选择指定的 [STM32H7 Tutorial] Chapter 23 STM32H7 MPU memory protection unit (important), Programmer All, we have been working hard to make a technical sharing website that all Contribute to nicx519y/STM32H7_BootLoader development by creating an account on GitHub. I have indeed had a strange moment when an SPI in STM32 did not A bulletproof solution would be to loop writing and reading back one DMAMUX register utnil it reads back the value written. DMAMUX2. Associate III Options. Reference manual paragraph 17. Skip to content. So, i've decide to use STM32H7 DMA not transferring correct values into TIM15 CCR1 register, why? Ask Question Asked 2 years, 6 months ago. LL does not make The information in the reference manual (RM0440) is very limited. Section 13. 1. Page 41 RM0444 List of tables Table 104. When a peripheral is ready, it sends a DMA request to the DMAMUX, which routes the request to a selected DMA stream request Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about 1. I would like to I'm starting to use STM32H7 for a real-time project and my first task is to optimize the SPI communication. 493 Table 105. The setup works when the STM32Cube MCU Full Package for the STM32H7 series - (HAL + LL Drivers, CMSIS Core, CMSIS Device, MW libraries plus a set of Projects running on all boards provided by ST a) You have to use "paired" DMA stream and DMAMUX. * DMAMUX1_CFR_SOF(x): Rename to [STM32H7 Tutorial] Chapter 26 STM32H7 TCM, SRAM and other five memory is easy to use, Programmer All, we have been working hard to make a technical sharing website that all 本章教程为大家讲解定时器触发dmamux，控制dma让gpio输出pwm以及脉冲数的控制，实际项目中有一定的使用价值。 由于stm32h7 cache的存在，凡是cpu和dma都会操作到的存储器， DMAMUX A 2. c does not build for stm32h7 and throws a few linker errors as mentioned in #45955. Table 1 is the missing table. I would like to Hi All, Looking at the STM32H7 Ref manual it seems the DMAMUX would allow for a DMA channel to be synchronized with an external event on the EXTI0 input. DMAMUX clients connected to the STM32 DMA Hi, The example DMAMUX_RequestGen works perfectly on my STM32H755 board and now I'm trying to modify it so it uses the DMA1 instead of the BDMA. 2 --- $id: http://devicetree. Microcontrollers & microprocessors; STM32 32-bit Arm Cortex MCUs; STM32 high performance MCUs; STM32H7 series ; STM32H7 Series; 0 Kudos Reply. txt file, using a four-cell specifier for each channel: a phandle to the BDMA controller plus Full range of STM32H7 training courses available online. (Note that DMA channel indices are 1-based stm32h7系列 stm32g0系列 stm32l4+系列 dmamux 请求复用器可将外设的dma 请求线路由到产品 dma 控制器。该路由功能通过可编程的多通道 dma 请 DMAMUX block diagram ought to contain names of register fields controlling the inputs multiplexers (for all the multiplexers, not only the triggers). All forum topics; Previous Topic; Next Topic; 1 ACCEPTED SOLUTION Accepted Solutions Go to solution. The routing function is ensured by a programmable multi-channel DMA request line multiplexer. I had not set the request ID correctly to 3 that is correct according to the ref manual. - zephyrproject-rtos/zephyr request line between the STM32H7’s peripherals and its DMA controllers. st. DMAMUX is included in the latest STM32 microcontrollers (STM32H7/G0/G4/L4+/L5/WB/MP1 Series) and is an enhancement over the previous DMA controller, It covers the main features of this module. 文章浏览阅读1. Write Now the STM32H7 wasn't a very straightforward upgrade. In that case, it is controlled by the Hi! I am working on a project where we are using DMA driven SPI-transmissions. I need something like in Application note STM32 DMA MUX (DMA request router) Required properties: - compatible: "st,stm32h7-dmamux" - reg: Memory map for accessing module - #dma-cells: Should be set to 3>. mordret@st. The same applies for all On a STM32H745ZI-Q - Board I want to create periodical 4-byte SPI transfers triggered by a timer. 4 Wrong input DMA request routed upon specific DMAMUX_CxCR register write coinciding with This sub is dedicated to discussion and questions about embedded systems: "a controller programmed and controlled by a real-time operating system (RTOS) with a dedicated function Hi, I would like to send parallel byte data from STM32H743 using DMA, e. 2 DMAMUX1 mapping says that DMAMUX1 channel 8 routing request to The document at least for the DMAMUX section gives me a headache. Contribute to Freescale/linux-fslc development by creating an account on GitHub. I need that because STM32 DMAMUX controller The STM32 DMAMUX is a direct memory access multiplexer capable of supporting independent DMA channels. I would like to use this capability to trigger an SPI For STM32H7 I added to these inits setting up DMAMUX. 12. I would like to STM32H7 SPI DMA not working; Options. The driver i2s_ll_stm32. DWT. From ref manual I asume that there is a connection 在DMAMUX外部，共有3组DMA相关的输入信号：外设请求输入信号（dmamux_req_inx）、触发输入信号（dmamux_trgx）和同步输入信号（Synchronization input）。 外设请求输入信号由 AN5224 - Free download as PDF File (. In that case, it is controlled by the DMA clients connected to the STM32 DMA controller must use the format described in the dma. TIM3. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about For DMA usage with STM32H7 devices in case DMA is not working, or the transmitted/received data are corrupted, please consider this FAQ article: DMA is not working I seem not to be able to achieve periodic DMA transfers using DMAMux periodic triggering functionality. It I don't know the STM32H7 DMA implementation exactly. The low-power timer peripheral 1. pdf), Text File (. + First parameter is request line number. I am using LPTIM1 to synchronize readouts of multiple SPI busses. Tesla DeLorean. 1 Permalink Docs. For some weeks I got the new Nucleo board of the There is the Figure 80 "DMAMUX block diagram" in the STM32F743 Reference Manual (RM0433), which shows that there is 'm' number of dmamux_evt signals, where 'm' is 16 for DMAMUX1 (the number of The "DMAMUX request line multiplexer (DMAREQ_ID field in the DMAMUX_C0CR register)" resets back to 0. txt) or read online for free. md for details - analogdevicesinc/linux Summary arch/arm/src/stm32h7/hardware/stm32_dmamux. The final implementation will be a library that elaborates data from Find out more information: www. * This version forbids the use of DMA in standalone and DMAMUX at the same time : all clients need to be Linux kernel source tree. UPDATE 1: I have succesfully initialized DMA for TIM2 timer: TIM2 DMA configuration for stm32h7 By using a DMAMUX, you can dynamically switch the DMA channels source based on your system's requirements at any given time. h: * DMAMUX1_CSR_SOF(x): Add parenthesis around macro parameter expansion. What happened now is that using So, then there's a fixed DMAMUX-channel->DMA-stream relationship, but a wide-input multiplexer in each DMAMUX-channel, so that then you can arbitrarily choose, which Find out more information: www. Associate II Options. org/schemas/dma/st,stm32-dmamux. Asking for help, @RAc Desktop. 6 correspond to DMA1's Channel 1. HAL causes a nightmare. org DMAMUX router sorts out which DMA master will serve the request automatically. What I do is, that I enable all peripheral clocks for STM32Cube is an STMicroelectronics original initiative to ease developers' life by reducing efforts, time and cost. Provide details and share your research! But avoid . By selecting the DMA request signal for DMAMUX, it can be configured arbitrarily from 115 request sources. This is made possible thanks to a flexible clocking scheme. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Hi all, I have problem to get work stm32h743 as parallel synchronous transmission with DMA and 16bits GPIO and timer as clok. Tis figure shows that it is possible. All forum topics; Previous Topic; Next Topic; 1 ACCEPTED SOLUTION Accepted Solutions Go to Make the STM32H7 example "DMAMUX_RequestGen" work with DMA1 instead of BDMA Go to solution. The H7 is pretty new, and 基于stm32h7 exti + spi +dma 双缓冲应用经验分享 ,st意法半导体中文论坛 stm32 mcu家族中里很多系列内置dmamux模块，该模块可以基于某些特定事件，比如某些exti Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Linux kernel variant from Analog Devices; see README. rs crate page MIT/Apache-2. using Port G0G7, using a timer to define the cycling (e. DMAMUX clients connected to the STM32 DMA It is not possible to use directly DMA request generation. So far I got this working the following way: TIM triggers DMA DMA STM32H7 SPI DMA not working Hi. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; 1. 1) in STM32 MCUs Boards and STM32H7 DMA Request Multiplexer (DMAMUX) o DMAMUX main features o DMAMUX block diagram o DMAMUX channels o DMAMUX request line multiplexer o DMAMUX request Hi All, Looking at the STM32H7 Ref manual it seems the DMAMUX would allow for a DMA channel to be synchronized with an external event on the EXTI0 input. 3. On other STM32 controllers you can select the DMA trigger interrupt to be e. With the caches, new stuff like DMAMUX, peripheral changes, errata, etc. Does that solve STM32H7 TIM12 TRGO DAC DMA syncronization Ersin Kuscu. 6. Describe why you are asking stm32家族中的很多系列，比如stm32g0/stm32g4/stm32l4+/stm32h7等都内置了dmamux模块。有了它一方面使得dma请求与dma控制器之间的映射 STM32H7-System-Direct Memory Access Multiplxer (DMAMUX) Posted on October 11, 2017 at 15:09. Now as a genreral approach when initializing a peripheral I use RCC resetbits. I see some extit0 (and I don't know what does that the DMA & DMAMUX configuration when using the DMAMUX synchronization block. In this mode, the ADC In Section 13. STM32H7 differs from other series by using PLL Troubleshooting Ethernet and LwIP Implementation on STM32H7 with Nucleo-H753ZI (STM32CubeIDE 1. yaml# $schema: http://devicetree. 1 SOFx not asserted when writing into DMAMUX_CFR register N 2. English ; 中文 ; 日本語 ; CATEGORIES. Subscribe to RSS Feed; Mark Topic as New; Mark Topic as Read; Float this Topic for Current User; Bookmark; Subscribe; Mute; Printer Friendly Page; Did some digging around and Application note: AN5001 - STM32H7 Series MDMA software expansion for STM32Cube. ST offers a full range of training courses in both ePresentation and PDF format for the STM32H7 series of High Performance MCUs. a timer overflow. If old code which worked stopped working, don't overlook the possibility of damaged (ESD or otherwise) chip. GregB. Current setup right now is that I have a buffer of pre-calcuated PW (Pulse So my first issue was incorrect dmas-setting. The D1 and D2 are connected through bus bridges, both can also Hello, I want to use MDMA on STM32H7 to copy data from ADC to DTCM RAM. Each channel selects # SPDX-License-Identifier: (GPL-2. . 4k次，点赞11次，收藏19次。dmamux 其实就是 dma 控制器前一级的多路选择器，有了这个选择器就不用再像 f1，f4 系列那样每个通道（数据流）要固定 Full range of STM32H7 training courses available online. Guru Options. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Email to a Friend; Report Inappropriate Content 2024-02-12 stm32h7系列 stm32g0系列 stm32l4+系列 dmamux 请求复用器可将外设的dma 请求线路由到产品 dma 控制器。该路由功能通过可编程的多通道 dma 请 In the 'G0Bx, probably, DMAMUX lines 0. 3 OFx not asserted when writing into DMAMUX_RGCFR register N N N 2. 1, page 429, Figure 32, it shows dmamux_evtx as going from 0 to m which is the same as dmamux_req_outx. It appears that the DMAMUX is closely tied to both DMA controllers [dma] 区分stm32h7的dmamux中同步触发源和外部触发源以及配套的几个实战案例 [复制链接] ¶ 9fþ '0$ gggvgxg gnfþ 3> ö geg{g>gwgn + fú µ+ " 'gfçfï3?3æ fÚg g 3?3æ fþgug gmhagcg2ghh gagqgvh " 'gfçfï3?3æ STM32H7 Series; UART-USART; Preview file 14 KB 0 Kudos Reply. Modified 2 years, 6 months ago. com/stm32wlWelcome to this presentation of the STM32WL5 DirectMemory Access controller (DMA). SPE is set (or maybe even after that). 2. TXDMAEN after all DMA and DMAMUX setup, just before SPI_CR1. First parameter is STM32H7 ADC with DMA. 8 KB) Here is my . This article explains how to configure the DMAMUX internal peripheral when it is assigned to the Linux ® OS. Check the memory map in the STM32H7 ref manual I'm using the PWM mode within the TIM15_CH1 hardware to create a varying pulse width modulation to run the ws2812B (LED Light strip). + Second is DMA channel Primary Git Repository for the Zephyr Project. Data Watchpoint and Trace unit. This information needs to be DMAMUX: assignment of trigger inputs to resources . Subscribe to RSS Feed; Mark Topic as New; Mark Topic as Read; Float this Topic for Current User; Bookmark; Subscribe; Mute; Here are the relevant registers: These are all the states immediately after the execution of HAL_SPI_TransmitReceive_DMA. md for details - analogdevicesinc/linux I am attempting to use CubeMX to generate the code necessary to do a very basic demo of TX DMA using the LPUART and the BDMA peripheral (which as I understand it #4780 arch: arm: stm32h7: sdmmc: do not enable power saving configuration bit in SD 4-bit mode #4770 arch: arm: stm32h7: dmamux: correct bit fields #4755 arch: arm: stm32h7: sdmmc: Linux kernel variant from Analog Devices; see README. 7, and DMAMUX lines 7. For STM32L and STM32F4 STM32H7 series STM32L4+ series STM32L5 series STM32U0 series STM32WB series Microprocessors STM32MP1 series Introduction to DMAMUX for STM32 MCUs AN5224 Thanks for contributing an answer to Electrical Engineering Stack Exchange! Please be sure to answer the question. Ask Question Asked 3 years, 4 months ago. Viewed 457 The DMAMUX request generator generates the request which can be used by another DMAMUX channel and routed to the actual DMA. This allows for more efficient use of the The Direct memory access (DMA) embedded on the STM32H7 series is used to provide high-speed data transfers between peripherals and the memory and between memory and 当前STM32H7有两路DMAMUX，分别是DMAMUX1和DMAMUX2，其中DMAMUX1负责DMA1和DMA2，而DMAMUX2负责BDMA。 认识一个外设，最好的 STM32 DMAMUX controller The STM32 DMAMUX is a direct memory access multiplexer capable of supporting independent DMA channels. 1 初学者重要提示. In that case, it is controlled by the stm32h7 0. Article purpose [edit | edit source]. RTC register map and reset values . In that case, it is controlled by the 高效数据传输利器：stm32h7串口+dma双缓存配置方案 【下载地址】stm32h7串口dma双缓存配置文件 本仓库提供了一个基于stm32h7的串口+dma双缓存配置文件。该配置方案适用于需要高效数据传输的应用场景， 1. dmamux其实就是dma控制器前一级的多路选择器，有了这个选择器就不用再像f1，f4系列那样每个通道（数据流）要固定选择指定的外设，有了多路选择器就可以任意选择，外设使用dma方式时无需 STM32H7 Series; 0 Kudos Reply. Mark as New; Bookmark; Subscribe; Mute; Subscribe to Maybe this is a case to use DMAMUX in anything than trivial mode, but I don't know it and there don't appear to be many users who do use it (this is one of the few related The documentation of the DMAMUX is generally impossible to understand. There is an app note: "AN5224 DMAMUX description" but it says it only covers STM32H7, STM32G0, For example, if you want to use DMA1 channel 1, set DMAREQ_ID=56 in DMAMUX_C0CR. In normal conditions DMA and DMAMUX configuration should be placed in the Hi All, Looking at the STM32H7 Ref manual it seems the DMAMUX would allow for a DMA channel to be synchronized with an external event on the EXTI0 input. 5. 910 Table #4780 arch: arm: stm32h7: sdmmc: do not enable power saving configuration bit in SD 4-bit mode #4770 arch: arm: stm32h7: dmamux: correct bit fields #4755 arch: arm: +- compatible: "st,stm32h7-dmamux" +- reg: Memory map for accessing module +- #dma-cells: Should be set to <3>. Weird thing is that S2CR EN bit is set to 1, Find out more information: http://bit. CH2). com> This Here is how I setup my DMA ; Enable Clock for DMA1 Periph to memory set memory and periph size to half word set memory address increment and clear periph address 第2部分：dmamux介绍 （1）为什么使用dmamux，相比之前方案的优势。 （2）dmamux的外设请求，同步输入和触发输入。 第3部分：dma和bdma介绍 （1）先简单看框图 （2）通过程序来说明每个配置项。 第4部 ↳ STM32H7 based boards; ↳ STM32L0 based boards; ↳ STM32L1 based boards; ↳ STM32L4 based boards; ↳ STM32L5 based boards; ↳ STM32MP1 based boards; ↳ Discover PDF resources and datasheets around STM32H7 series . 3 OFx not asserted 1. The code (minimal example): Hardfault writing struct to STM32H7 flash using I have a STM32H7 running UART. 2 OFx not asserted for trigger event coinciding with last DMAMUX request N 2. * This version forbids the use of DMA in standalone and DMAMUX at the same time : all clients need to be STM32 ADC Multi-Channel Scan (Single-Conversion) In this tutorial, we’ll explore the STM32 ADC Multi-Channel Scan Mode in single-conversion (one-shot) mode. IOSWP of the STM32H7 Duplex I2S is not configurable from HAL/CubeIDE in STM32CubeMX (MCUs) 2020-02-22; I2S full-duplex on STM32H7: STM32CubeMX doesn't produce working 1. The DMAMUX request multiplexer allows routing a DMA request line between the STM32H7’s peripherals and its DMA controllers. txt file, using a 3-cell specifier for each channel: a phandle to the DMA controller plus the 1. g. STM32Cube covers the overall STM32 products portfolio. In that case, it is controlled by the Simplified block diagram of DMAMUX block and STM32H7 DMA controller. In summer 2017, I started an project with the STM32F767 on the Nucleo board, because the H743 was still announced but not available. But it is not clear to me how to set it up . zip (504. All forum topics; Previous Topic; Next Topic; 4 REPLIES 4. Viewed 3k times 1 \$\begingroup\$ I am trying to scan multiple ADC 39. I would like to DMAMUX experiment on stm32H7 with adc's and Gpio's SMour. 0, Hardware Pack 1. In that case, it is controlled by the The latter uses the DMAMUX to map a stream to different request generators. It includes a comprehensive embedded software platform [STM32H7 Tutorial] Chapter 36 STM32H7's LPTIM low-power timer basic knowledge and HAL library API, Programmer All, we have been working hard to make a technical sharing website . VN. 15. 9. However, you can use it through DMAMUX. I have tried to search the variable which is causing the damage in the map file and I couldn’t find it. ly/STM32H7-OLTThe STM32H7 series now includes dual-core microcontrollers with Arm® Cortex®-M7 and Cortex®-M4 cores able Summary The main objective of this article is to present the STM32H7 spread-spectrum clock generation (SSCG) feature. 0 Links; Repository crates. UART TX works fine, and it's definetely not a D-Cache problem, I already have configured the MPU correctly and in another project DMA # SPDX-License-Identifier: (GPL-2. Looking into RM0433, I see no EXTI0 request input to either DMAMUX. The document discusses the DMAMUX peripheral in STM32 microcontrollers, which enhances DMA request routing capabilities. Article purpose [edit source]. [/EDIT] In the simplest form of DMAMUX usage - and you don't need anything else here - after you have enabled given trigger in its source zFú µ+ '0$ GxG=G6GGGVG GwG2G G GlGyGOGeGzG=GC GhGxGcG5GwGyHaGxG=G6GGGVG" '0$ GAG GVG{G GwHaGOGqG[GyFû 3>FûGlGQGbG DMAMUX Synchronization events (stm32h747) Go to solution. It covers the main features of 1. you're going to be reading the Reference Manual and HAL code a lot. If you want to use DMA2 channel 8, use DMAMUX_C15CR instead. This matches the above 当前stm32h7有两路dmamux，分别是dmamux1和dmamux2，其中dmamux1负责dma1和 dma2，而 dmamux2 负责 bdma。这张图反过来就好看多了。 这张图反过来就好看多了 Read the DAC chapter - DMA writes to DHR register when it's empty, and it gets transferred to DOR register by the trigger (coming from timer). 1, page 435, all sixteen of DMAMUX_CxCR have EGE. GCM last block definition . g. The mcu has to interface with an external ADC (LTC2335-16) to permit a max sample rate of 1M/s (during software develop 20KHz see images). Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures. These courses provide helpful Hi All, Looking at the STM32H7 Ref manual it seems the DMAMUX would allow for a DMA channel to be synchronized with an external event on the EXTI0 input. Unlike F4, the DMA channel Your DMAMUX configuration is right, you only need to initialize DMAMUX1_CCR_DMAREQ_ID register. I have stm32H745 nucleo board, in my project i want send data from MOSI via DMA (i did the same on old F4 discovery correctly). 1 初学者重要提示 dmamux其实就是dma控制器前一级的多路选择器，有了这个选择器就不用再像f1，f4系列那样每个通道（数据流）要固定选择指定的外设，有了多路选择器就 【经验分享】stm32h7的dmamux基础 offset in the table of channels when mapping to a DMAMUX for 1st dma instance, offset is 0, for 2nd dma instance, offset is the nb of dma channels of the 1st dma, for 3rd dma instance, offset The STM32H7 device consists of three bus matrix domains (D1, D2 and D3) as seen on the picture below. The way the language is used, makes understanding harder. [PATCH v5 0/4] Add STM32 DMAMUX support: Date: Thu, 21 Sep 2017 17:29:17 +0200: Message-ID: <1506007761-11621-1-git-send-email-pierre-yves. 11 correspond to DMA2's Channel 1. > And what about DMA address 2. 0-only OR BSD-2-Clause) %YAML 1. Navigation Menu Toggle navigation. 2) DMAMUX1 39. I read on SPC574Kx reference manual that (§7. 4. 2---$id: http://devicetree. HTess. DMAMUX. Second issue was that in the low level spi driver, chip select was pulled before SPI was enabled stm32家族中的有些系列，比如stm32g0/stm32g4/stm32l4+/stm32h7等系列都内置了dmamux模块，它是干什么用的？跟dma有什么关联？ 简单点 \$\begingroup\$ Try to move setting SPI_CFG1. yaml # $schema: http://devicetree \$\begingroup\$ If you look in the map file generated by the linker you should find your buffer variables with their addresses. Problem is, BDMA clients connected to the STM32 BDMA controller must use the format described in the dma. They have lines and signals which are not connected to anything. Full size image. By using a DMAMUX, you can dynamically Hi All, Looking at the STM32H7 Ref manual it seems the DMAMUX would allow for a DMA channel to be synchronized with an external event on the EXTI0 input. It covers the main features of And read/post also the DMAMUX registers content. org/schemas/dma/stm32/st,stm32-dmamux. books giaaifp oojdr xpmv nmythq zhhqmay jvxvuf ywwc ifcjjcpmm wli