[riot-devel] STM32L073 cpu support in conjunction with spi driver

[Neo]

Hello RIOT developers,

on the weekend I tried the STM32L073 support in conjunction with spi 
support but I had no success.


I wanted to test this on a board equiped with a STM32L073CZ MCU (48pin 
TQFP). Therefore I made a copy of the linker file (stm32l073rz.ld -> 
stm32l073cz.ld) and I altered the boards Makefile.include file to 
support this derivate (export CPU_MODEL = stm32l073cz).


I enabled spi support in the feature list inside of the Makefile 
(FEATURES_PROVIDED += periph_spi) and altered the device descriptor in 
the periph_conf.h file but I got no hardware response on the analyzer 
when I tried to run the second spi interface (SPI2). The MCU does nothing.


/**
 * @nameSPI configuration
 *
 * @noteThe spi_divtable is auto-generated from
 *  `cpu/stm32_common/dist/spi_divtable/spi_divtable.c`
 * @{
 */
static const uint8_t spi_divtable[2][4] = {
{   /* for APB1 @ 800Hz */
5,  /* -> 125000Hz */
3,  /* -> 50Hz */
2,  /* -> 100Hz */
0   /* -> 400Hz */
},
{   /* for APB2 @ 800Hz */
5,  /* -> 125000Hz */
3,  /* -> 50Hz */
2,  /* -> 100Hz */
0   /* -> 400Hz */
}
};

static const spi_conf_t spi_config[] = {
{
.dev = SPI1,
.mosi_pin = GPIO_PIN(PORT_A, 7),
.miso_pin = GPIO_PIN(PORT_A, 6),
.sclk_pin   = GPIO_PIN(PORT_A, 5),
.cs_pin = GPIO_UNDEF,
.af= GPIO_AF0,
.rccmask  = RCC_APB2ENR_SPI1EN,
.apbbus   = APB2
},
{
.dev = SPI2,
.mosi_pin = GPIO_PIN(PORT_B, 15),
.miso_pin = GPIO_PIN(PORT_B, 14),
.sclk_pin = GPIO_PIN(PORT_B, 13),
.cs_pin   = GPIO_UNDEF,
.af   = GPIO_AF0,
.rccmask  = RCC_APB1ENR_SPI2EN,
.apbbus   = APB1
}
};

#define SPI_NUMOF   (sizeof(spi_config) / sizeof(spi_config[0]))
/** @} */

The application I tried to run was the tests/periph_spi test application.

Do I have to enable some other features or dependencies to get the spi 
interface running?


As far as I have seen the spi driver was rewritten since the last 
release and I tried to configure it as described on the riot-os.org/api 
web page.


Any thoughts what could be wrong with this configuration?

Thanks a lot!

Regards,

Neo

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Re: [riot-devel] flash command without compiling

[Ludwig Knüpfer]

Hi,

In general this should not be the case. I'd imagine one of the packages messes 
up the build system's dependencies. Hard to say without seeing the project.

Cheers,
Ludwig

Am 17. April 2017 16:47:12 MESZ schrieb Jose Alamos :
>Dear RIOTers,
>
>I noticed the 'make flash' recompiles everything before flashing.
>What's
>the reason behind this?
>
>I'm working with some packages that require some time to
>configure/compile,
>and everytime I run 'flash' I have to wait the whole process to finish.
>I
>cannot even flash 2 boards at the same time because the compile process
>is
>concurrent.
>
>As always, any ideas would be appreciated :)
>
>Cheers!
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[riot-devel] flash command without compiling

[Jose Alamos]

Dear RIOTers,

I noticed the 'make flash' recompiles everything before flashing. What's
the reason behind this?

I'm working with some packages that require some time to configure/compile,
and everytime I run 'flash' I have to wait the whole process to finish. I
cannot even flash 2 boards at the same time because the compile process is
concurrent.

As always, any ideas would be appreciated :)

Cheers!
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