Hello Roberto,

I've created https://github.com/apache/incubator-nuttx/pull/5697 to fix the
problem.

Best regards,
Petro

пн, 7 бер. 2022 р. о 16:54 Roberto Bucher <roberto.buc...@supsi.ch> пише:

> Sorry! Forgot my previous error!
>
> devtype was 23 and not 0x23!!! My fault
>
> Best regards
>
> Roberto
>
> On 3/7/22 16:48, Roberto Bucher wrote:
>
> Thanks Petro!
>
> This solve one part of the problem: I don't receive any crash now.
>
> There is another thinks tht is not clear to me: the macro
> SPIDEV_ID(spitool->devtype, spitool->csn) is defined as
>
> #define SPIDEV_ID(type,index) ((((uint32_t)(type)  & 0xffff) << 16) | \
>                                 ((uint32_t)(index) & 0xffff))
>
> in the file include/nuttx/spi/spi.h.
>
> This should means that calling it with the parameters
> spitool->devtype=0x23 and spitool->csn=0 should give 0x230000 as return
> value and not 0x170000...
>
> Best regards
>
> Roberto
>
>
> On 3/7/22 16:22, Petro Karashchenko wrote:
>
> Hello Roberto,
>
> I think that the problem is in the line's: "stm32_gpiowrite(g_spigpio[devid],
> !selected);". Those should be 
> "stm32_gpiowrite(g_spigpio[SPIDEVID_INDEX(devid)],
> !selected);".
>
> Please try to see if that helps.
>
> Best regards,
> Petro
>
> пн, 7 бер. 2022 р. о 12:46 Roberto Bucher <roberto.buc...@supsi.ch> пише:
>
>> I reached to move a little forward by analyzing the SPI on the nucleo-144
>> STM32F7 board, and I found out that the problem is now in the calling of
>> SPI_SELECT in the nuttx/drivers/spi/spi_transfer.c and the spi_transfer
>> function.
>>
>> This are the values in the seq structure before launching the SPI_SELECT
>> command.
>>
>> nsh> spi bus
>>  BUS   EXISTS?
>> Bus 0: NO
>> Bus 1: NO
>> Bus 2: YES
>> Bus 3: NO
>> nsh> spi exch -b2 -x4 aabbccdd
>> Sending:    AA BB CC DD
>> seq -> dev: 0x170000, mode: 3, nbits: 8, ntrans: 1, freq: 4000000
>> Received:    FF FF FF FF
>>
>> To avoid the dump error I modified the seq->dev from 0x170000 to
>> 0x0004...
>> It seems that the seq->dev value is not correct...
>>
>> Best regards
>>
>> Roberto
>>
>> On 3/6/22 13:47, Roberto Bucher wrote:
>>
>> Thanks Petro
>>
>> I've modified the nucleo-144/src/stm32_spi.c file by simply adding:
>>
>> struct spi_dev_s *g_spiX;
>>
>> and by adding
>>
>> spi_register(g_spiX, X);
>>
>> in the
>>
>> where X is the spi device number (in my example spi2)
>>
>> in the shell the /dev/spi2 is available.
>>
>> Best regards
>>
>> Roberto
>>
>> On 3/6/22 12:49, Petro Karashchenko wrote:
>>
>> Hello Roberto,
>>
>> I'm asking this because I examined nucleo-144 board source code and
>> currently I do not see a "spi_register" call in board init files. So I
>> assume that you have some modified code and it is very hard to make any
>> conclusions while not seeing the code.
>>
>> Best regards,
>> Petro
>>
>> нд, 6 бер. 2022 р. о 13:40 Petro Karashchenko <
>> petro.karashche...@gmail.com> пише:
>>
>>> Hello Roberto,
>>>
>>> It would be good if you can dump assembly that is generated. What I see
>>> is that "int spi_register(FAR struct spi_dev_s *spi, int bus)", so I'm
>>> assuming that R0 should be "spi" and R1 should be "bus", but in your dump
>>> "R0: 00000001 R1: 2004e840" those seems to be inverted (00000001 seems to
>>> be a "bus" and "2004e840" seems to be a "spi" pointer). The assembly code
>>> will show light on the dump that you provided. As an alternative you can
>>> provide the defconfig that you use if you are not using a custom board.
>>>
>>> Best regards,
>>> Petro
>>>
>>>
>>> нд, 6 бер. 2022 р. о 10:54 Roberto Bucher <roberto.buc...@supsi.ch>
>>> пише:
>>>
>>>> When I enable some dubug configs
>>>>
>>>>
>>>>
>>>> I get the following error by enter in the serial shell:
>>>>
>>>> sert: Assertion failed at file:spi/spi_driver.c line: 358
>>>> arm_registerdump: R0: 00000001 R1: 2004e840 R2: 40004800  R3: 20010684
>>>> arm_registerdump: R4: 2004e7a0 R5: 00000002 R6: 2004f370  FP: 20010670
>>>> arm_registerdump: R8: 00000000 SB: 00000000 SL: 00000000 R11: 00000000
>>>> arm_registerdump: IP: 00000003 SP: 2004f370 LR: 08005fad  PC: 0800648e
>>>> arm_registerdump: xPSR: 61000000 PRIMASK: 00000000 CONTROL: 00000004
>>>> arm_registerdump: EXC_RETURN: ffffffe9
>>>> arm_dump_stack: User Stack:
>>>>
>>>> On the line 358 of spi_driver.c there is this assertion:
>>>>
>>>>   /* Sanity check */
>>>>
>>>>   DEBUGASSERT(spi != NULL && (unsigned)bus < 1000);
>>>>
>>>> Any Idea?
>>>>
>>>> Best regards
>>>>
>>>> Roberto
>>>>
>>>>
>>>>
>>>>
>>
>>
>
>

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