
3 changed files with 110 additions and 0 deletions
@ -0,0 +1,9 @@
|
||||
APPLICATION = driver_dsp0401
|
||||
include ../Makefile.tests_common |
||||
|
||||
USEMODULE += dsp0401
|
||||
|
||||
LOOPS ?= 3
|
||||
CFLAGS += -DLOOPS=${LOOPS}
|
||||
|
||||
include $(RIOTBASE)/Makefile.include |
@ -0,0 +1,29 @@
|
||||
## About |
||||
|
||||
This is a test application for the [DSP0401](https://www.embeddedadventures.com/datasheets/DSP-0401B_hw_v4.pdf), |
||||
a 4 digits with 16 segments alpha-numeric display. |
||||
|
||||
## Connecting the device |
||||
|
||||
The display can be controlled from the JP1 connection jumper as follows: |
||||
* Connect `SIN` to the board `DSP0401_PARAM_SDI_PIN` (see your board_params.h file) |
||||
* Connect `CLK` to the board `DSP0401_PARAM_CLK_PIN` |
||||
* Connect `LAT` to the board `DSP0401_PARAM_LAT_PIN` |
||||
* Connect `PWM` to the board `DSP0401_PARAM_PWM_DEV` pwm device. See the board periph_conf.h |
||||
to find a valid pin and configuration. |
||||
* Connect `VCC` to one of the board VCC pin (3.3V or 5V depending on your board. |
||||
Example: use 3.3V with ST Nucleo) |
||||
* Connect `GND` to one of the board GND. |
||||
|
||||
Since there are potentially a lot of LEDs to poweron, it's preferable to use an |
||||
external power supply to power the DSP0401 module. This is what JP2 is meant for. |
||||
See the [datasheet](https://www.embeddedadventures.com/datasheets/DSP-0401B_hw_v4.pdf) |
||||
section `Power` for more information on power configuration. |
||||
|
||||
## Chaining devices |
||||
|
||||
Since DSP0401 contains a shift register, it's possible to chain devices by connecting |
||||
the JP4 and JP5 connection jumpers of the device N to respectively JP2 and JP1 of the |
||||
device N+1. |
||||
Attention: ensure your power supply is able to provide enough current for the number of devices |
||||
you plan to use. |
@ -0,0 +1,72 @@
|
||||
/*
|
||||
* Copyright (C) 2017 Inria |
||||
* |
||||
* This file is subject to the terms and conditions of the GNU Lesser |
||||
* General Public License v2.1. See the file LICENSE in the top level |
||||
* directory for more details. |
||||
*/ |
||||
|
||||
/**
|
||||
* @ingroup tests |
||||
* @{ |
||||
* |
||||
* @file |
||||
* @brief Test application for the DSP0401 4 digit display. |
||||
* |
||||
* @author Alexandre Abadie <alexandre.abadie@inria.fr> |
||||
* |
||||
* @} |
||||
*/ |
||||
|
||||
#include <stdio.h> |
||||
#include <inttypes.h> |
||||
|
||||
#include "dsp0401_params.h" |
||||
#include "dsp0401.h" |
||||
#include "xtimer.h" |
||||
|
||||
#define TEST_DELAY (2U) /* 2 seconds delay between each test */ |
||||
#define WORD_DELAY (750U) /* 750 milliseconds delay between each word */ |
||||
#define SCROLL_DELAY (200U) /* 200 milliseconds delay between character shift */ |
||||
#ifndef LOOPS |
||||
#define LOOPS (3U) /* Number of display loops before exit */ |
||||
#endif |
||||
|
||||
int main(void) |
||||
{ |
||||
dsp0401_t dev; |
||||
|
||||
puts("Starting DSP0401 test application\n"); |
||||
|
||||
puts("Initializing DSP4010 device."); |
||||
if (dsp0401_init(&dev, &dsp0401_params[0]) != DSP0401_OK) { |
||||
puts("[Error] Cannot initialize DSP0401 display."); |
||||
return 1; |
||||
} |
||||
|
||||
puts("Initialization successful\n"); |
||||
uint8_t loop = 0; |
||||
while (loop < LOOPS) { |
||||
puts("[INFO] Displaying 'THIS IS RIOT'"); |
||||
dsp0401_display_text(&dev, (char*)"THIS"); |
||||
xtimer_usleep(WORD_DELAY * US_PER_MS); |
||||
dsp0401_display_text(&dev, (char*)" IS "); |
||||
xtimer_usleep(WORD_DELAY * US_PER_MS); |
||||
dsp0401_display_text(&dev, (char*)"RIOT"); |
||||
xtimer_sleep(TEST_DELAY); |
||||
|
||||
puts("[INFO] Clearing text!"); |
||||
dsp0401_clear_text(&dev); |
||||
xtimer_sleep(TEST_DELAY); |
||||
|
||||
puts("[INFO] Scrolling 'THIS IS RIOT'"); |
||||
dsp0401_scroll_text(&dev, (char*)("THIS IS RIOT"), SCROLL_DELAY); |
||||
xtimer_sleep(TEST_DELAY); |
||||
puts("[INFO] Done\n"); |
||||
++loop; |
||||
} |
||||
|
||||
puts("SUCCESS"); |
||||
|
||||
return 0; |
||||
} |
Loading…
Reference in new issue