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configs/nucleo-l452re: Add buttons example

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This commit is contained in:
Juha Niskanen 2018-05-15 06:55:21 -06:00 committed by Gregory Nutt
parent 2c94eb1188
commit 0275c8e9c7
2 changed files with 26 additions and 1 deletions
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4
configs/nucleo-l452re/src/stm32_adc.c
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@ -168,7 +168,8 @@ int stm32l4_adc_measure_voltages(uint32_t *vrefint, uint32_t *vbat, uint32_t *ve
ssize_t nbytes;
struct adc_msg_s sample[ADC1_NCHANNELS] = { 0 };
int nsamples;
int fd, ret, errval;
int ret;
int fd;
fd = open("/dev/adc0", O_RDONLY);
if (fd < 0)
@ -245,6 +246,7 @@ int stm32l4_adc_measure_voltages(uint32_t *vrefint, uint32_t *vbat, uint32_t *ve
tsense = (110 - 30) * (sample[i].am_data - STM32_TSENSE_TSCAL1)
/ (STM32_TSENSE_TSCAL2 - STM32_TSENSE_TSCAL1) + 30;
ainfo("TSENSE: %d -> %d °C\n", sample[i].am_data, tsense);
UNUSED(tsense);
break;
case ADC1_INTERNAL_VBATDIV3_CHANNEL:

23
configs/nucleo-l452re/src/stm32_bringup.c
View File

@ -43,7 +43,12 @@
#include <sys/types.h>
#include <debug.h>
#include <nuttx/input/buttons.h>
#include <nuttx/i2c/i2c_master.h>
#include <nuttx/leds/userled.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "stm32l4_i2c.h"
#include "nucleo-l452re.h"
@ -92,6 +97,24 @@ int stm32_bringup(void)
}
#endif
#ifdef CONFIG_BUTTONS
#ifdef CONFIG_BUTTONS_LOWER
iinfo("Initializing button driver\n");
/* Register the BUTTON driver */
ret = btn_lower_initialize("/dev/buttons");
if (ret < 0)
{
ierr("ERROR: btn_lower_initialize() failed: %d\n", ret);
}
#else
/* Enable BUTTON support for some other purpose */
board_button_initialize();
#endif
#endif /* CONFIG_BUTTONS */
#ifdef HAVE_I2C_DRIVER
/* Get the I2C lower half instance */