Maybe I’m missing something simple here, but I can’t seem to get this working at all.
I’m trying to store a large array in QSPIFLASH but when flashing with dfu-util I get the following error:
dfu-util 0.11
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/
dfu-util: Warning: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release
Opening DFU capable USB device...
Device ID 0483:df11
Device DFU version 011a
Claiming USB DFU Interface...
Setting Alternate Interface #0 ...
Determining device status...
DFU state(2) = dfuIDLE, status(0) = No error condition is present
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash "
Downloading element to address = 0x08000000, size = -2012712140
dfu-util: Last page at 0x90087333 is not writeable
make: *** [program-dfu] Error 64
I’m using the DSY_QSPI_DATA macro like so:
#include "per/qspi.h"
const unsigned char DSY_QSPI_DATA birds_wav[] = {
0x52, 0x49, 0x46, 0x46, 0x2c, 0x73, 0x04, 0x00, 0x57, 0x41, 0x56, 0x45,
...
0x58, 0x58, 0x58, 0x00, 0x69, 0x73, 0x6f, 0x36, 0x6d, 0x70, 0x34, 0x31
};
unsigned int birds_wav_len = 291636;
I can see this defined in the libDaisy/src/per/qspi.h file:
#define DSY_QSPI_DATA \
__attribute__((section( \
".qspiflash_data"))) /**< used for reading memory in memory_mapped mode. */
I’ve copied the example linker file fromlibDaisy/core/STM32H750IB_flash.lds - I’ve also tried modifying the MEMORY map QSPIFLASH entry to the below as they’re different in the _qspi.lds and _flash.lds linker files; although I’m not sure this makes any difference to the dfu-util error I’m getting.
QSPIFLASH (RX) : ORIGIN = 0x90040000, LENGTH = 7936K
I’ve added the custom linker script to my Makefile; again I’m sure the example STM32H750IB_flash.lds should work.
LDSCRIPT = ./STM32H750IB_custom.lds
Compiled okay and we can see the main program in FLASH and the additional data in QSPIFLASH:
Memory region Used Size Region Size %age Used
FLASH: 104152 B 128 KB 79.46%
DTCMRAM: 0 GB 128 KB 0.00%
SRAM: 32144 B 512 KB 6.13%
RAM_D2: 16704 B 288 KB 5.66%
RAM_D3: 0 GB 64 KB 0.00%
BACKUP_SRAM: 12 B 4 KB 0.29%
ITCMRAM: 0 GB 64 KB 0.00%
SDRAM: 0 GB 64 MB 0.00%
QSPIFLASH: 291636 B 7936 KB 3.59%
But then when running the program-dfu task dfu-util is never able to write to QSPIFLASH. It always throws a dfu-util: Last page at 0x90087333 is not writeable
Also dfu-util -l shows this:
Found DFU: [0483:df11] ver=0200, devnum=1, cfg=1, intf=0, path="1-1", alt=1, name="@Option Bytes /0x5200201C/01*128 e", serial="200364500000"
Found DFU: [0483:df11] ver=0200, devnum=1, cfg=1, intf=0, path="1-1", alt=0, name="@Internal Flash /0x08000000/16*128Kg", serial="200364500000"
Is this something to do with the program-dfu task in the Makefile? I can see it also passes the memory address to write.
program-dfu:
dfu-util -a 0 -s $(FLASH_ADDRESS):leave -D $(BUILD_DIR)/$(TARGET_BIN) -d ,0483:$(USBPID)
Then when running this task is passes the FLASH address, so it would make sense it might not be also able to write to QSPIFLASH then too…
dfu-util -a 0 -s 0x08000000:leave -D build/test.bin -d ,0483:df11
Maybe I’m missing something here, but from the docs, libDaisy source code and other posts on the forum, this should work, right???
Can dfu-util flash to multiple memory regions? I would assume so based on the docs and examples from @BHAudio’s great post here: Out of FLASH memory walkthrough with samples
I’m new to all this embedded stuff, but have experience in other languages. I’ve been troubleshooting this for a couple of days, but I’m stumped.
Hopefully someone can help me. Thanks!
