/* Switch to PLL2 for XIP to avoid hardfault during re-initialize clock. */ CLOCK_InitSysPfd(kCLOCK_Pfd2, 24); /* Set PLL2 PFD2 clock 396MHZ. */ CLOCK_SetMux(kCLOCK_FlexspiMux, 0x2); /* Choose PLL2 PFD2 clock as flexspi source clock. */ CLOCK_SetDiv(kCLOCK_...
第一種情況:APP 編譯時設置宏定義 XIP_BOOT_HEADER_ENABLE=0,編譯出不包含 FDCB Flash 頭的代碼,此時編譯出的代碼不包含 flash_config 和 ivt 段,如下圖,程序的中斷向量表是放到 0x60002000 的位置的。 第二種情況:APP 編譯時設置宏定義 XIP_BOOT_HEADER_ENABLE=1,編譯的程序將包含 flash_config 和 ivt 段...
with ECC handled in software — SD/eMMC — SPI NOR FLASH — Parallel NOR FLASH with XIP support — Single/Dual channel Quad SPI FLASH with XIP support • Timers and PWMs: — Two General Programmable Timers – 4-channel generic 32-bit resolution timer – Each support standard capture and...
with ECC handled in software — SD/eMMC — SPI NOR/NAND FLASH — Parallel NOR FLASH with XIP support — Single/Dual channel Quad SPI FLASH with XIP support • Timers and PWMs: — Two General Programmable Timers – 4-channel generic 32-bit resolution timer – Each support standard capture...
3. I changed the .launch file to use the redlink script I created from the dcd data in xip/evkmimxrt1020_sdram_ini_dcd.c. FYI: This is how I did that. After running debug to create a .launch file (debug will fail the first time until you change the redlink script), I double-...
Note: 本文提及的芯片,在系统映射地址空间分配上,给 FlexSPI 分配的起始地址是 0x60000000,因此 XIP 应用程序需要从 0x60000000 之后的空间开始链接 一、FlexSPI连接模式 在讲启动连接之前,首先跟大家简单聊一下FlexSPI模块的连接模式。从手册里看,FlexSPI一共有三种连接模式: ...
i.MX RT1020 Crossover MCUs are based on the Arm® Cortex®-M7 core for real-time microcontroller (MCU) performance and high integration for industrial and IoT applications. The i.MX RT1020 Arm® Cortex®-M7 operates at up to 500 MHz with 256 KB on-chip RAM that can be configur...
i.MXRT如果是在XIP模式下工作的话(代码执行在片外SPI Nor Flash),片外的SPI Flash带宽是很大的一个瓶颈,所以我们尽可能地都是把Flash的频率设成最快,同时把支持4线SPI模式使能(目前应该绝大多数SPI Flash都支持四线了),而JEDEC组织当年发布第一个SPI Flash标准版本JEDEC216的时候,我猜测那会儿应该各个Flash...
我们知道i.MXRT1060-EVK上默认连的是ISSI的8MB QSPI Flash,SDK XIP工程里默认使用了它的配置,在 \SDK_2.x.x_EVK-MIMXRT1060\boards\evkmimxrt1060\xip\evkmimxrt1060_flexspi_nor_config.c中定义了常量 qspiflash_config,我们可以参考这个常量定义。
recognize_commands.cc recognize_commands.h todo.txt startup utilities xip EventRecorderStub.scvd readme.txt sai.mex sai.uvmpw sai.uvoptx sai.uvprojx uart_out.txt vendor .gitignore README.mdBreadcrumbs rt1020-evk-playground /sai_no_mic /src / audio_provider_test.ccLatest commit ...