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MCU-PLUS-SDK-AM243X: Custom flash with 1S-1S-4S protocol not working

Andrea Favero
Prodigy 140 points
Part Number: MCU-PLUS-SDK-AM243X
Other Parts Discussed in Thread: SYSCONFIG

Hello experts,

I'm developing support for custom flash device "MX25L12833FM2I-10G".

I'm having troubles using the flash in 1S-1S-4S.

I managed to configure correctly the flash in the 1S-1S-4S protocol. After configuration the bit6 (QE, quad enable) of the status word is set correctly and the amount of dummy cycles is set to 10 (bit6/7 of configuration register), as shown in the image, where cfgReg = configuration register and statReg = status register.

The problem occurs when I execute a QREAD command (0x6B):

I'm using the ospi_flash_io example provided by the SDK, where it writes an array of values to the flash (from 0 to 255 in crescent order) and then reads back this values.

In the read buffer I'm getting this values instead:

This response from the flash makes me wonder if all the 4 spi pins (D0,D1,D2,D3) are actually being used or if I'm missing something the the peripheral configuration.

Here you can find the sysconfig file from my project 

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/**
* These arguments were used when this file was generated. They will be automatically applied on subsequent loads
* via the GUI or CLI. Run CLI with '--help' for additional information on how to override these arguments.
* @cliArgs --device "AM243x_ALX_beta" --package "ALX" --part "ALX" --context "r5fss0-0" --product "MCU_PLUS_SDK_AM243x@09.00.00"
* @versions {"tool":"1.18.0+3266"}
*/
/**
* Import the modules used in this configuration.
*/
const flash = scripting.addModule("/board/flash/flash", {}, false);
const flash1 = flash.addInstance();
const clock = scripting.addModule("/kernel/dpl/clock");
const debug_log = scripting.addModule("/kernel/dpl/debug_log");
const mpu_armv7 = scripting.addModule("/kernel/dpl/mpu_armv7", {}, false);
const mpu_armv71 = mpu_armv7.addInstance();
const mpu_armv72 = mpu_armv7.addInstance();
const mpu_armv73 = mpu_armv7.addInstance();
const mpu_armv74 = mpu_armv7.addInstance();
/**
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Thank you in advance,

Best Regards,

Andrea F,