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-rw-r--r--examples/other/i2c_stts75_sensor/stts75.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/examples/other/i2c_stts75_sensor/stts75.c b/examples/other/i2c_stts75_sensor/stts75.c
deleted file mode 100644
index 319394f..0000000
--- a/examples/other/i2c_stts75_sensor/stts75.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * This file is part of the libopenstm32 project.
- *
- * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
- *
- * This program 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.
- *
- * This program 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 <http://www.gnu.org/licenses/>.
- */
-
-#include <libopenstm32/i2c.h>
-#include "stts75.h"
-
-void stts75_write_config(u32 i2c, u8 sensor)
-{
- u32 reg32;
-
- /* Send START condition. */
- i2c_send_start(i2c);
-
- /* Waiting for START is send and switched to master mode. */
- while (!((I2C_SR1(i2c) & I2C_SR1_SB)
- & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY))));
-
- /* Send destination address. */
- i2c_send_7bit_address(i2c, sensor, I2C_WRITE);
-
- /* Waiting for address is transferred. */
- while (!(I2C_SR1(i2c) & I2C_SR1_ADDR));
-
- /* Cleaning ADDR condition sequence. */
- reg32 = I2C_SR2(i2c);
-
- /* Sending the data. */
- i2c_send_data(i2c, 0x1); /* stts75 config register */
- while (!(I2C_SR1(i2c) & I2C_SR1_BTF)); /* Await ByteTransferedFlag. */
- i2c_send_data(i2c, 0x4); /* pol reverse - LED glows if temp is below Tos/Thyst */
- while (!(I2C_SR1(i2c) & (I2C_SR1_BTF | I2C_SR1_TxE)));
-
- /* Send STOP condition. */
- i2c_send_stop(i2c);
-}
-
-void stts75_write_temp_os(u32 i2c, u8 sensor, u16 temp_os)
-{
- u32 reg32;
-
- /* Send START condition. */
- i2c_send_start(i2c);
-
- /* Waiting for START is send and switched to master mode. */
- while (!((I2C_SR1(i2c) & I2C_SR1_SB)
- & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY))));
-
- /* Send destination address. */
- i2c_send_7bit_address(i2c, sensor, I2C_WRITE);
-
- /* Waiting for address is transferred. */
- while (!(I2C_SR1(i2c) & I2C_SR1_ADDR));
-
- /* Cleaning ADDR condition sequence. */
- reg32 = I2C_SR2(i2c);
-
- /* Sending the data. */
- i2c_send_data(i2c, 0x3); /* OvertemperatureShutdown register */
- while (!(I2C_SR1(i2c) & I2C_SR1_BTF));
- i2c_send_data(i2c, (u8)(temp_os >> 8)); /* MSB */
- while (!(I2C_SR1(i2c) & I2C_SR1_BTF));
- i2c_send_data(i2c, (u8)(temp_os & 0xff00)); /* LSB */
- while (!(I2C_SR1(i2c) & (I2C_SR1_BTF | I2C_SR1_TxE))); /* After the last byte we have to wait for TxE too. */
-
- /* Send STOP condition. */
- i2c_send_stop(i2c);
-}
-
-void stts75_write_temp_hyst(u32 i2c, u8 sensor, u16 temp_hyst)
-{
- u32 reg32;
-
- /* Send START condition. */
- i2c_send_start(i2c);
-
- /* Waiting for START is send and therefore switched to master mode. */
- while (!((I2C_SR1(i2c) & I2C_SR1_SB)
- & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY))));
-
- /* Say to what address we want to talk to. */
- i2c_send_7bit_address(i2c, sensor, I2C_WRITE);
-
- /* Waiting for address is transferred. */
- while (!(I2C_SR1(i2c) & I2C_SR1_ADDR));
-
- /* Cleaning ADDR condition sequence. */
- reg32 = I2C_SR2(i2c);
-
- /* Sending the data. */
- i2c_send_data(i2c, 0x2); /* TemperatureHysteresis register */
- while (!(I2C_SR1(i2c) & I2C_SR1_BTF));
- i2c_send_data(i2c, (u8)(temp_hyst >> 8)); /* MSB */
- while (!(I2C_SR1(i2c) & I2C_SR1_BTF));
- i2c_send_data(i2c, (u8)(temp_hyst & 0xff00)); /* LSB */
- while (!(I2C_SR1(i2c) & (I2C_SR1_BTF | I2C_SR1_TxE))); /* After the last byte we have to wait for TxE too. */
-
- /* Send STOP condition. */
- i2c_send_stop(i2c);
-}
-
-u16 stts75_read_temperature(u32 i2c, u8 sensor)
-{
- u32 reg32;
- u16 temperature;
-
- /* Send START condition. */
- i2c_send_start(i2c);
-
- /* Waiting for START is send and switched to master mode. */
- while (!((I2C_SR1(i2c) & I2C_SR1_SB)
- & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY))));
-
- /* Say to what address we want to talk to. */
- /* Yes, WRITE is correct - for selecting register in STTS75. */
- i2c_send_7bit_address(i2c, sensor, I2C_WRITE);
-
- /* Waiting for address is transferred. */
- while (!(I2C_SR1(i2c) & I2C_SR1_ADDR));
-
- /* Cleaning ADDR condition sequence. */
- reg32 = I2C_SR2(i2c);
-
- i2c_send_data(i2c, 0x0); /* temperature register */
- while (!(I2C_SR1(i2c) & (I2C_SR1_BTF|I2C_SR1_TxE)));
-
- /*
- * Now we transferred that we want to ACCESS the temperature register.
- * Now we send another START condition (repeated START) and then
- * transfer the destination but with flag READ.
- */
-
- /* Send START condition. */
- i2c_send_start(i2c);
-
- /* Waiting for START is send and switched to master mode. */
- while (!((I2C_SR1(i2c) & I2C_SR1_SB)
- & (I2C_SR2(i2c) & (I2C_SR2_MSL | I2C_SR2_BUSY))));
-
- /* Say to what address we want to talk to. */
- i2c_send_7bit_address(i2c, sensor, I2C_READ);
-
- /* 2-byte receive is a special case. See datasheet POS bit. */
- I2C_CR1(i2c) |= (I2C_CR1_POS | I2C_CR1_ACK);
-
- /* Waiting for address is transferred. */
- while (!(I2C_SR1(i2c) & I2C_SR1_ADDR));
-
- /* Cleaning ADDR condition sequence. */
- reg32 = I2C_SR2(i2c);
-
- /* Cleaning I2C_SR1_ACK. */
- I2C_CR1(i2c) &= ~ I2C_CR1_ACK;
-
- /* Now the slave should begin to send us the first byte. Await BTF. */
- while (!(I2C_SR1(i2c) & I2C_SR1_BTF));
- temperature = (u16)(I2C_DR(i2c) << 8); /* MSB */
-
- /*
- * Yes they mean it: we have to generate the STOP condition before
- * saving the 1st byte.
- */
- I2C_CR1(i2c) |= I2C_CR1_STOP;
-
- temperature |= I2C_DR(i2c); /* LSB */
-
- /* Original state. */
- I2C_CR1(i2c) &= ~I2C_CR1_POS;
-
- return temperature;
-}