TonBERRY/micropython
3
0
Fork 0
Code Pull Requests Activity

mimxrt/hal/qspi_nor_flash_config: Use a safe common CS timing.

Browse Source 
The flash devices used by the MIMXRT board are specified either with 3ns or
5 ns CS setup and hold time.  Since a single configuration file is used for
all boards, use 5ns instead of 3ns to be safe, even if there were no
problems so far.

Signed-off-by: robert-hh <robert@hammelrath.com>
This commit is contained in:
robert-hh
2025-02-23 16:11:56 +01:00
committed by Damien George
parent 2d20dbce2c
commit 1398e7fd20
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
ports/mimxrt/hal/qspi_nor_flash_config.c
View File

@@ -38,8 +38,8 @@ const flexspi_nor_config_t qspiflash_config = {
.tag = FLEXSPI_CFG_BLK_TAG,
.version = FLEXSPI_CFG_BLK_VERSION,
.readSampleClkSrc = MICROPY_HW_FLASH_DQS,
.csHoldTime = 3u,
.csSetupTime = 3u,
.csHoldTime = 5u, // safe time for all flash devices
.csSetupTime = 5u,
.busyOffset = FLASH_BUSY_STATUS_OFFSET, // Status bit 0 indicates busy.
.busyBitPolarity = FLASH_BUSY_STATUS_POL, // Busy when the bit is 1.
.deviceModeCfgEnable = 1u,