To achieve this, the user can modify XQSPIPSU_CLK_PRESCALE_8 to XQSPIPSU_CLK_PRESCALE_2.PLM: 33.33 x 72 / 2 / 4 / 2 = 149.99 MHzU-Boot: No changes are required. Please refer to the default device tree in case 1.Note that the feedback clock must be enabled in Vivado when the...
@cwunderThank you for the feedback again. I am re-initializing DMA again in my periodic function if "u8TriggerQspiExchng == 2". I am setting this variable to "2" at the end of the ISR as can be seen in the belowT-32 screen shot. With this, I am able to...
Set to shortcontinuous mode, using illd's spimaster_exchange function, found that it can only transfer up to 5 bytes. Using a logic analyzer, found that when transferring 6 bytes, the chip-select CS pulls down and then transfers 5 bytes normally, and then the chip-select CS clock clk an...
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Use u-boot and double check the clock settings to verify the QSPI clock frequency (QSPI_REF_CLK and QSPI_CLK on the CLK pin). Remember that QSPI has various modes of operations depending on the clock frequency. Calculate and verify the QSPI clock speed. Please provide the register settings...
@hjuul Thanks for this feedback, we'll keep that in mind for the next time we update this driver. One note: You mention DMA as not supported, but I do think it is. You 'just' need to add proper 'dmas' property. See here: zephyr/boards/arm/disco_l475_iot1/disco_l475_iot1....
* @bus_clk: QSPI input clk frequency * @speed_hz: Default SCK frequency * @cur_seqid: current LUT table sequence id * @sf_addr: flash access offset * @amba_base: Base address of QSPI memory mapping of every CS * @amba_total_size: size of QSPI memory mapping * @c...
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6). 在block design 的设置界面 使能QSPI的功能 如下图所示(当QSPI 时钟大于40MHZ的时候 就需要勾选Feedback clk) 7)随后点OK 保存修改, 点击“Run Block Automation”如下图所示。在弹出的选项中保持默认,点击“OK”,即可完成对ZYNQ7 Processing System的配置 ...
Please check the following feedback from our internal side: About the download, you also can use the blhost command line directly, you can provide a full fcb.bin with the readSampleClkSrc=0. You can use that to configure the memory before loading code. blhost -u – write-memory ...