Hi there I am doing some development on the Micromod board with STM32f405 and was wondering if anybody could help me setup my DTS file for the external NOR flash that is on the board. I think the flash is W25Q 128Mbit, see here: https://cdn.sparkfun.com/assets/a/d/8/c/7/21326-MicroMod_STM32_Process…

Hi @TS-Russell I just wanted to inform you that the dts below is now working &spi3 { pinctrl-0 = <&spi3_sck_pc10 &spi3_miso_pc11 &spi3_mosi_pc12>; pinctrl-names = "default"; status = "okay"; cs-gpios = <&gpioc 3 GPIO_ACTIVE_LOW>; w25q128jv: w25q128s@0 { compatible = "winbo…

The W25Q 128Mbit flash you mentioned is indeed present on the board according to the schematic you linked. Accordingly, here’s a modified version of your DTS file for the external NOR flash: &spi3 { pinctrl-0 = <&spi3_sck_pc10 &spi3_miso_pc11 &spi3_mosi_pc12>; pinctrl-names = "default"; …

[image] TS-Russell: &spi3 { pinctrl-0 = <&spi3_sck_pc10 &spi3_miso_pc11 &spi3_mosi_pc12>; pinctrl-names = "default"; status = "okay"; cs-gpios = <&gpioc 3 GPIO_ACTIVE_LOW>; /* PC3 as CS */ w25q128: w25q128@0 { compatible = "winbond,w25q128", "jedec,spi-nor…

The error message suggests there’s a syntax issue in your device tree source (DTS) file. Let’s try to address this: The error is occurring on line 167 of your DTS file. Can you double-check what’s on that line? It seems the compiler is expecting a number or a parenthesized expression but found som…

Hi again. I have been working on creating the routines to read/write/initialize the flash memory and I seem to have some issues with writing to offsets larger than 2097152 bytes, even though the chip is specified as 16777216 bytes. The value 2097152 could be calculated as 32768 * 64, meaning I am …

Try asking this same thing in a zephyr forum

Device tree support in Zephyr for NOR flash (Winbond)

Development Boards MicroMod

TS-Russell September 26, 2024, 4:22pm 6

Excellent work - thanks for posting the update!

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Device tree support in Zephyr for NOR flash (Winbond)

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