periph_conf.h File Reference

Peripheral MCU configuration for the nucleo144-l496 board. More...

Detailed Description

Peripheral MCU configuration for the nucleo144-l496 board.

Author
Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr

Definition in file periph_conf.h.

#include "periph_cpu.h"
#include "clk_conf.h"
#include "cfg_i2c1_pb8_pb9.h"
#include "cfg_rtt_default.h"
#include "cfg_usb_otg_fs.h"
+ Include dependency graph for periph_conf.h:

Go to the source code of this file.

#define CONFIG_BOARD_HAS_LSE   1
 

Timer configuration

#define TIMER_0_ISR   isr_tim2
 
#define TIMER_1_ISR   isr_tim5
 
#define TIMER_NUMOF   ARRAY_SIZE(timer_config)
 
static const timer_conf_t timer_config []
 

UART configuration

#define UART_0_ISR   (isr_lpuart1)
 
#define UART_1_ISR   (isr_usart3)
 
#define UART_1_DMA_ISR   (isr_dma1_stream5)
 
#define UART_NUMOF   ARRAY_SIZE(uart_config)
 
static const uart_conf_t uart_config []
 

PWM configuration

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)
 
static const pwm_conf_t pwm_config []
 

SPI configuration

#define SPI_NUMOF   ARRAY_SIZE(spi_config)
 
static const spi_conf_t spi_config []
 
#define ADC_NUMOF   ARRAY_SIZE(adc_config)
 Number of ADC devices. More...
 
#define VBAT_ADC   ADC_LINE(6)
 VBAT ADC line. More...
 
static const adc_conf_t adc_config []
 ADC configuration. More...
 

Macro Definition Documentation

◆ ADC_NUMOF

#define ADC_NUMOF   ARRAY_SIZE(adc_config)

Number of ADC devices.

Definition at line 200 of file periph_conf.h.

◆ CONFIG_BOARD_HAS_LSE

#define CONFIG_BOARD_HAS_LSE   1

Definition at line 24 of file periph_conf.h.

◆ PWM_NUMOF

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)

Definition at line 133 of file periph_conf.h.

◆ SPI_NUMOF

#define SPI_NUMOF   ARRAY_SIZE(spi_config)

Definition at line 156 of file periph_conf.h.

◆ TIMER_0_ISR

#define TIMER_0_ISR   isr_tim2

Definition at line 58 of file periph_conf.h.

◆ TIMER_1_ISR

#define TIMER_1_ISR   isr_tim5

Definition at line 59 of file periph_conf.h.

◆ TIMER_NUMOF

#define TIMER_NUMOF   ARRAY_SIZE(timer_config)

Definition at line 61 of file periph_conf.h.

◆ UART_0_ISR

#define UART_0_ISR   (isr_lpuart1)

Definition at line 99 of file periph_conf.h.

◆ UART_1_DMA_ISR

#define UART_1_DMA_ISR   (isr_dma1_stream5)

Definition at line 101 of file periph_conf.h.

◆ UART_1_ISR

#define UART_1_ISR   (isr_usart3)

Definition at line 100 of file periph_conf.h.

◆ UART_NUMOF

#define UART_NUMOF   ARRAY_SIZE(uart_config)

Definition at line 103 of file periph_conf.h.

◆ VBAT_ADC

#define VBAT_ADC   ADC_LINE(6)

VBAT ADC line.

Definition at line 205 of file periph_conf.h.

Variable Documentation

◆ adc_config

const adc_conf_t adc_config[]
static
Initial value:
= {
{ .pin = GPIO_PIN(PORT_A, 3), .dev = 0, .chan = 8 },
{ .pin = GPIO_PIN(PORT_C, 0), .dev = 0, .chan = 1 },
{ .pin = GPIO_PIN(PORT_C, 3), .dev = 0, .chan = 4 },
{ .pin = GPIO_PIN(PORT_C, 1), .dev = 0, .chan = 2 },
{ .pin = GPIO_PIN(PORT_C, 4), .dev = 0, .chan = 13 },
{ .pin = GPIO_PIN(PORT_C, 5), .dev = 0, .chan = 14 },
{ .pin = GPIO_UNDEF, .dev = 0, .chan = 18 },
}
@ PORT_C
port C
Definition: periph_cpu.h:49
@ PORT_A
port A
Definition: periph_cpu.h:47
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition: periph_cpu.h:46
#define GPIO_UNDEF
Definition of a fitting UNDEF value.

ADC configuration.

Note that we do not configure all ADC channels, and not in the STM32L496ZG order. Instead, we just define 6 ADC channels, for the Nucleo Arduino header pins A0-A5 and the internal VBAT channel.

To find appropriate device and channel find in the board manual, table showing pin assignments and information about ADC - a text similar to ADC[X]_IN[Y], where: [X] - describes used device - indexed from 0, for example ADC1_IN10 is device 0, [Y] - describes used channel - indexed from 1, for example ADC1_IN10 is channel 10

For Nucleo-L496ZG this information is in board manual, Table 11, page 38.

VBAT is connected ADC1_IN18 or ADC3_IN18 and a voltage divider is used, so that only 1/3 of the actual VBAT is measured. This allows for a supply voltage higher than the reference voltage.

For Nucleo-L496ZG more information is provided in MCU datasheet, in section 3.17.3 - Vbat battery voltage monitoring, page 43.

Definition at line 187 of file periph_conf.h.

◆ pwm_config

const pwm_conf_t pwm_config[]
static
Initial value:
= {
{
.dev = TIM1,
.rcc_mask = RCC_APB2ENR_TIM1EN,
.chan = { { .pin = GPIO_PIN(PORT_E, 9) , .cc_chan = 0},
{ .pin = GPIO_PIN(PORT_E, 11) , .cc_chan = 1},
{ .pin = GPIO_PIN(PORT_E, 13) , .cc_chan = 2},
{ .pin = GPIO_UNDEF, .cc_chan = 0} },
.af = GPIO_AF1,
.bus = APB2
},
{
.dev = TIM4,
.rcc_mask = RCC_APB1ENR1_TIM4EN,
.chan = { { .pin = GPIO_PIN(PORT_D, 15) , .cc_chan = 3},
{ .pin = GPIO_UNDEF, .cc_chan = 0},
{ .pin = GPIO_UNDEF, .cc_chan = 0},
{ .pin = GPIO_UNDEF, .cc_chan = 0} },
.af = GPIO_AF2,
.bus = APB1
},
}
@ PORT_E
port E
Definition: periph_cpu.h:51
@ PORT_D
port D
Definition: periph_cpu.h:50
@ GPIO_AF1
use alternate function 1
Definition: cpu_gpio.h:103
@ GPIO_AF2
use alternate function 2
Definition: cpu_gpio.h:104
@ APB1
Advanced Peripheral Bus 1
Definition: periph_cpu.h:79
@ APB2
Advanced Peripheral Bus 2
Definition: periph_cpu.h:80

Definition at line 110 of file periph_conf.h.

◆ spi_config

const spi_conf_t spi_config[]
static
Initial value:
= {
{
.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 = SPI_CS_UNDEF,
.mosi_af = GPIO_AF5,
.miso_af = GPIO_AF5,
.sclk_af = GPIO_AF5,
.cs_af = GPIO_AF5,
.rccmask = RCC_APB2ENR_SPI1EN,
.apbbus = APB2
}
}
@ GPIO_AF5
use alternate function 5
Definition: cpu_gpio.h:107
#define SPI_CS_UNDEF
Define value for unused CS line.
Definition: periph_cpu.h:363

Definition at line 140 of file periph_conf.h.

◆ timer_config

const timer_conf_t timer_config[]
static
Initial value:
= {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR1_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR1_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
},
}

Definition at line 41 of file periph_conf.h.

◆ uart_config

const uart_conf_t uart_config[]
static
Initial value:
= {
{
.dev = LPUART1,
.rcc_mask = RCC_APB1ENR2_LPUART1EN,
.rx_pin = GPIO_PIN(PORT_G, 8),
.tx_pin = GPIO_PIN(PORT_G, 7),
.rx_af = GPIO_AF8,
.tx_af = GPIO_AF8,
.bus = APB12,
.irqn = LPUART1_IRQn,
.type = STM32_LPUART,
.clk_src = 0,
},
{
.dev = USART3,
.rcc_mask = RCC_APB1ENR1_USART3EN,
.rx_pin = GPIO_PIN(PORT_D, 9),
.tx_pin = GPIO_PIN(PORT_D, 8),
.rx_af = GPIO_AF7,
.tx_af = GPIO_AF7,
.bus = APB1,
.irqn = USART3_IRQn,
.type = STM32_USART,
.clk_src = 0,
}
}
@ PORT_G
port G
Definition: periph_cpu.h:53
@ GPIO_AF8
use alternate function 8
Definition: cpu_gpio.h:111
@ GPIO_AF7
use alternate function 7
Definition: cpu_gpio.h:109
@ STM32_LPUART
STM32 Low-power UART (LPUART) module type.
Definition: cpu_uart.h:39
@ STM32_USART
STM32 USART module type.
Definition: cpu_uart.h:38

Definition at line 68 of file periph_conf.h.