diff options
| author | Theodore Ateba <tf.ateba@gmail.com> | 2017-08-16 06:39:57 +0000 |
|---|---|---|
| committer | Theodore Ateba <tf.ateba@gmail.com> | 2017-08-16 06:39:57 +0000 |
| commit | 7437bfef11387f1521f8c33e81885e186b583626 (patch) | |
| tree | ae0bf0f0b0cb535fbcfd37114f22e641705a42ff /testhal/AVR/MEGA/SPI/main.c | |
| parent | 47461741eda79dd6096093d9b5474190d03ca8ce (diff) | |
| download | ChibiOS-7437bfef11387f1521f8c33e81885e186b583626.tar.gz ChibiOS-7437bfef11387f1521f8c33e81885e186b583626.tar.bz2 ChibiOS-7437bfef11387f1521f8c33e81885e186b583626.zip | |
Add a specific directory for AVR MEGA in the testhal.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10436 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'testhal/AVR/MEGA/SPI/main.c')
| -rw-r--r-- | testhal/AVR/MEGA/SPI/main.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/testhal/AVR/MEGA/SPI/main.c b/testhal/AVR/MEGA/SPI/main.c new file mode 100644 index 000000000..0cc3bcf5a --- /dev/null +++ b/testhal/AVR/MEGA/SPI/main.c @@ -0,0 +1,91 @@ +/*
+ ChibiOS - Copyright (C) 2016 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"
+
+/**
+ * @brief Global variables
+ */
+BaseSequentialStream * chp = (BaseSequentialStream *) &SD1;
+
+/*
+ * @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 = {
+ IOPORT2, /* SPI chip select port. */
+ 7, /* SPI chip select pad. */
+ SPI_CPOL0_CPHA0, /* SPI mode. */
+ SPI_MSB_FIRST, /* SPI bit order. */
+ SPI_SCK_FOSC_128, /* SPI clock. */
+ spiCallback /* SPI callback. */
+};
+
+/*
+ * 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();
+
+ /*
+ * Activates the serial driver 1 using the driver default configuration.
+ */
+ sdStart(&SD1, NULL);
+
+ /*
+ * Activate the spi driver 1 by using the defined configuration.
+ */
+ spiStart(&SPID1, &spiCfg);
+
+ chprintf(chp, "AVR SPI program testhal program example.\r\n");
+
+ while (TRUE) {
+ spiSelect(&SPID1);
+ spiStartSend(&SPID1, 4, txbuf);
+ spiUnselect(&SPID1);
+ chThdSleepMilliseconds(1000);
+ }
+
+ /*
+ * Stop the spi driver.
+ */
+ spiStop(&SPID1);
+}
+
|