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-rw-r--r--testhal/LPC17xx/I2C/main.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/testhal/LPC17xx/I2C/main.c b/testhal/LPC17xx/I2C/main.c
new file mode 100644
index 000000000..a9bf8fda9
--- /dev/null
+++ b/testhal/LPC17xx/I2C/main.c
@@ -0,0 +1,124 @@
+/*
+ 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 <stdlib.h>
+
+#include "ch.h"
+#include "hal.h"
+#include "chprintf.h"
+
+BaseSequentialStream * chp = (BaseSequentialStream *)&SD1;
+
+/* buffers depth */
+#define EEPROM_RX_DEPTH 10
+#define EEPROM_TX_DEPTH 12
+
+#define EEPROM_WR_ADRESS_H 0x00
+#define EEPROM_WR_ADRESS_L 0x00
+
+#define EEPROM_RD_ADRESS_H 0x00
+#define EEPROM_RD_ADRESS_L 0x00
+
+static uint8_t rxbuf[EEPROM_RX_DEPTH];
+static uint8_t txbuf[EEPROM_TX_DEPTH];
+
+static i2cflags_t errors = 0;
+#define EEPROM_24LC64_ADDR 0b1010000
+
+
+/* I2C interface #2 */
+static const I2CConfig i2ccfg2 = {
+ I2C_FAST_MODE,
+ 400000
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+ msg_t status = RDY_OK;
+ systime_t tmo = MS2ST(4);
+ 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();
+
+ /*
+ * Starts I2C
+ */
+ i2cStart(&I2CD2, &i2ccfg2);
+
+ /*
+ * Prepares the Serial driver 1
+ */
+ sdStart(&SD1, NULL); /* Default is 38400-8-N-1.*/
+
+ txbuf[0] = EEPROM_WR_ADRESS_H; /* register address */
+ txbuf[1] = EEPROM_WR_ADRESS_L;
+ for (i = 2; i < EEPROM_TX_DEPTH; i++)
+ txbuf[i] = i - 2;
+
+ i2cAcquireBus(&I2CD2);
+ status = i2cMasterTransmitTimeout(&I2CD2, EEPROM_24LC64_ADDR, txbuf, EEPROM_TX_DEPTH, rxbuf, 0, tmo);
+ i2cReleaseBus(&I2CD2);
+
+ if (status != RDY_OK){
+ errors = i2cGetErrors(&I2CD2);
+ chprintf(chp, "EEPROM write error code: %d\n\r", errors);
+ }
+ else {
+ chprintf(chp, "\n\rEEPROM write:\t");
+ for (i = 2; i < EEPROM_TX_DEPTH; i++) {
+ chprintf(chp, "0x%02x ", txbuf[i]);
+ }
+ }
+
+ chThdSleepMilliseconds(5);
+
+ /* Read */
+ txbuf[0] = EEPROM_RD_ADRESS_H; /* register address */
+ txbuf[1] = EEPROM_RD_ADRESS_L;
+ i2cAcquireBus(&I2CD2);
+ status = i2cMasterTransmitTimeout(&I2CD2, EEPROM_24LC64_ADDR, txbuf, 2, rxbuf, EEPROM_RX_DEPTH, tmo);
+ i2cReleaseBus(&I2CD2);
+
+ if (status != RDY_OK) {
+ errors = i2cGetErrors(&I2CD2);
+ chprintf(chp, "EEPROM read error code: %d\n\r", errors);
+ }
+
+ chprintf(chp, "\n\rEEPROM read:\t ");
+ for (i = 0; i < EEPROM_RX_DEPTH; i++) {
+ chprintf(chp, "0x%02x ", rxbuf[i]);
+ }
+ /*
+ * Normal main() thread activity, nothing in this test.
+ */
+ while (TRUE) {
+ palTogglePad(GPIO0, GPIO0_LED2_RED);
+ chThdSleepMilliseconds(100);
+ }
+}
+
+
+