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-rw-r--r--testhal/STM8S/SPI/demo/main.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/testhal/STM8S/SPI/demo/main.c b/testhal/STM8S/SPI/demo/main.c
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+++ b/testhal/STM8S/SPI/demo/main.c
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+/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ 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"
+
+/*
+ * SPI configuration (8MHz, CPHA=0, CPOL=0, MSb first).
+ */
+static ROMCONST SPIConfig spicfg = {
+ NULL,
+ GPIOD,
+ PD_LD10,
+ 0
+};
+
+/*
+ * Transmit data.
+ */
+static ROMCONST 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
+};
+
+/*
+ * Receive buffer.
+ */
+static uint8_t buffer[32];
+
+/*
+ * Application entry point.
+ */
+void 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();
+
+ /*
+ * OS initialization.
+ */
+ chSysInit();
+
+ /*
+ * Activates the SPI driver 1 using the driver default configuration.
+ */
+ spiStart(&SPID1, &spicfg);
+
+ /*
+ * Normal main() thread activity.
+ */
+ while (TRUE) {
+ volatile uint8_t b;
+
+ chThdSleepMilliseconds(1000);
+ /* Exchanging data, if the pins MISO and MOSI are connected then the
+ transmitted data is received back into the buffer. On the
+ STM8S-Discovery board the pins are CN2-9 and CN2-10.*/
+ spiSelect(&SPID1);
+ spiExchange(&SPID1, sizeof(digits), digits, buffer);
+ /* Polled transfers test.*/
+ b = spiPolledExchange(&SPID1, 0x55);
+ b = spiPolledExchange(&SPID1, 0xAA);
+ spiUnselect(&SPID1);
+ }
+}