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-rw-r--r--testhal/AVR/XMEGA/SPI/main.c120
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diff --git a/testhal/AVR/XMEGA/SPI/main.c b/testhal/AVR/XMEGA/SPI/main.c
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+/*
+ ChibiOS - Copyright (C) 2016..2018 Theodore Ateba
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+#include "chprintf.h"
+
+BaseSequentialStream *chp = (BaseSequentialStream *) &SD1;
+uint16_t cpt = 0; /* Counter for serial print. */
+
+/*
+ * @brief Data to transmit over the spi bus.
+ */
+char txbuf[] = "ABCD";
+
+/**
+ * @brief Spi callback.
+ */
+void spiCallback(SPIDriver *spip) {
+
+ chnWrite(&SD1, (const uint8_t *)"*", 1);
+ spip->txbuf = 0;
+};
+
+/**
+ * @biref SPI configuration strucrture.
+ */
+static const SPIConfig spiCfg = {
+ spiCallback, /* SPI callback. */
+ IOPORT2, /* SPI chip select port. */
+ 7, /* SPI chip select pad. */
+ SPI_PRESCALER_DIV4_gc, /* prescaler. */
+ SPI_MODE_0_gc, /* SPI clock mode. */
+ true, /* SPI role "master/slave". */
+ false, /* SPI data order. */
+ false, /* SPI double speed bit. */
+ SPI_INTLVL_OFF_gc, /* SPI interrupt level. */
+};
+
+/**
+ * @brief Blink thread.
+ */
+static THD_WORKING_AREA(waThread1, 32);
+static THD_FUNCTION(Thread1, arg) {
+
+ (void)arg;
+ chRegSetThreadName("Blinker");
+
+ while (true) {
+ palClearPad(IOPORT5, PORTE_LED);
+ chThdSleepMilliseconds(1000);
+ palSetPad(IOPORT5, PORTE_LED);
+ chThdSleepMilliseconds(100);
+ }
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+ /*
+ * 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();
+
+
+ palClearPad(IOPORT5, PORTE_LED);
+
+ /*
+ * Configure TX (PINC3) and RX (PIN2) for the USART1.
+ */
+ palSetPadMode(IOPORT3, PIN3, PAL_MODE_OUTPUT_PUSHPULL);
+ palSetPadMode(IOPORT3, PIN2, PAL_MODE_INPUT_PULLUP);
+
+ /*
+ * Start the Serial driver 1 by using the default configuration.
+ */
+ sdStart(&SD1, NULL);
+
+ /*
+ * Activate the spi driver 1 by using the defined configuration.
+ */
+ spiStart(&SPID1, &spiCfg);
+
+ /*
+ * Starts the LED blinker thread.
+ */
+ chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+
+ chprintf(chp, "AVR SPI program testhal program example.\r\n");
+
+ while (TRUE) {
+ chprintf(chp, "Hello world %i.\r\n", cpt++);
+ spiSelect(&SPID1);
+ spiStartSend(&SPID1, 4, txbuf);
+ spiUnselect(&SPID1);
+ chThdSleepMilliseconds(1000);
+ }
+
+ return 0;
+}