From d87a13eb629b93886204361c7fbd6afd5bc0ba91 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Fri, 7 Jan 2011 17:19:43 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2612 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- demos/ARMCM0-LPC1114-LPCXPRESSO/main.c | 141 +++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 demos/ARMCM0-LPC1114-LPCXPRESSO/main.c (limited to 'demos/ARMCM0-LPC1114-LPCXPRESSO/main.c') diff --git a/demos/ARMCM0-LPC1114-LPCXPRESSO/main.c b/demos/ARMCM0-LPC1114-LPCXPRESSO/main.c new file mode 100644 index 000000000..6080d1d72 --- /dev/null +++ b/demos/ARMCM0-LPC1114-LPCXPRESSO/main.c @@ -0,0 +1,141 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +#include "ch.h" +#include "hal.h" +#include "test.h" + +/* + * Conversion table from hex digit to 7 segments encoding, bit 5 controls the + * dot. + * 8 = LU, 4 = RL, 2 = D, 1 = RU, 8 = U, 4 = M, 2 = LL, 1 = L. + */ +static uint8_t digits[32] = { + 0x24, 0xAF, 0xE0, 0xA2, 0x2B, 0x32, 0x30, 0xA7, + 0x20, 0x22, 0x21, 0x38, 0x74, 0xA8, 0x70, 0x71, + 0x04, 0x8F, 0xC0, 0x82, 0x0B, 0x12, 0x10, 0x87, + 0x00, 0x02, 0x01, 0x18, 0x54, 0x88, 0x50, 0x51 +}; + +/* + * SPI configuration (1MHz, CPHA=0, CPOL=0). + */ +static SPIConfig spicfg = { + NULL, + GPIO1, + GPIO1_SPI0SEL, + CR0_DSS8BIT | CR0_FRFSPI | CR0_CLOCKRATE(0), + 48 +}; + +/* + * Red LED blinker thread, times are in milliseconds. + */ +static WORKING_AREA(waThread1, 128); +static msg_t Thread1(void *arg) { + + (void)arg; + while (TRUE) { + palClearPad(GPIO0, GPIO0_LED2); + chThdSleepMilliseconds(500); + palSetPad(GPIO0, GPIO0_LED2); + chThdSleepMilliseconds(500); + } + return 0; +} + +/* + * RGB LED blinker thread, times are in milliseconds. + */ +static WORKING_AREA(waThread2, 128); +static msg_t Thread2(void *arg) { + + (void)arg; + while (TRUE) { + palClearPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3B) | + PAL_PORT_BIT(GPIO1_LED3R) | + PAL_PORT_BIT(GPIO1_LED3G)); + chThdSleepMilliseconds(250); + palClearPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3B) | + PAL_PORT_BIT(GPIO1_LED3R) | + PAL_PORT_BIT(GPIO1_LED3G)); + palSetPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3B)); + chThdSleepMilliseconds(250); + palClearPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3B) | + PAL_PORT_BIT(GPIO1_LED3R) | + PAL_PORT_BIT(GPIO1_LED3G)); + palSetPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3R)); + chThdSleepMilliseconds(250); + palClearPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3B) | + PAL_PORT_BIT(GPIO1_LED3R) | + PAL_PORT_BIT(GPIO1_LED3G)); + palSetPort(GPIO1, PAL_PORT_BIT(GPIO1_LED3G)); + chThdSleepMilliseconds(250); + } + return 0; +} + +/* + * Application entry point. + */ +int main(void) { + uint8_t i; + + /* + * System initializations. + * - HAL initialization, this also initializes the configured device drivers + * and performs the board-specific initializations. + * - Kernel initialization, the main() function becomes a thread and the + * RTOS is active. + */ + halInit(); + chSysInit(); + + /* + * Activates the SD1 and SPI1 drivers. + */ + sdStart(&SD1, NULL); /* Default: 38400,8,N,1. */ + spiStart(&SPID1, &spicfg); + + /* + * Creates the blinker threads. + */ + chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL); + chThdCreateStatic(waThread2, sizeof(waThread2), NORMALPRIO, Thread2, NULL); + + /* + * Normal main() thread activity, in this demo it updates the 7-segments + * display on the LPCXpresso main board using the SPI driver. + */ + i = 0; + while (TRUE) { + if (!palReadPad(GPIO0, GPIO0_SW3)) + TestThread(&SD1); + spiSelect(&SPID1); + spiSend(&SPID1, 1, &digits[i]); /* Non polled method. */ + spiUnselect(&SPID1); + chThdSleepMilliseconds(500); + spiSelect(&SPID1); + spiPolledExchange(&SPID1, digits[i | 0x10]); /* Polled method. */ + spiUnselect(&SPID1); + chThdSleepMilliseconds(500); + i = (i + 1) & 15; + } + return 0; +} -- cgit v1.2.3