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Code Issues Releases Activity

Small fixes. BMP085 drivers still not working.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@246 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
gussy 2010-03-04 15:41:21 +00:00 committed by gussy
parent 6d67d2dab2
commit 792406510c
2 changed files with 13 additions and 14 deletions
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9
flight/PiOS/Common/pios_bmp085.c
View File

@ -202,7 +202,7 @@ void PIOS_BMP085_GetValues(uint16_t *Pressure, uint16_t *Altitude, uint16_t *Tem
*/ */
int32_t PIOS_BMP085_Read(uint16_t address, uint8_t *buffer, uint8_t len) int32_t PIOS_BMP085_Read(uint16_t address, uint8_t *buffer, uint8_t len)
{ {
/* Try to get the IIC peripheral */ /* Try to get the I2C peripheral */
if(PIOS_I2C_LockDevice(I2C_Non_Blocking) < 0) { if(PIOS_I2C_LockDevice(I2C_Non_Blocking) < 0) {
/* Request a retry */ /* Request a retry */
return -2; return -2;
@ -210,16 +210,15 @@ int32_t PIOS_BMP085_Read(uint16_t address, uint8_t *buffer, uint8_t len)
/* Send I2C address and EEPROM address */ /* Send I2C address and EEPROM address */
/* To avoid issues with litte/big endian: copy address into temporary buffer */ /* To avoid issues with litte/big endian: copy address into temporary buffer */
uint8_t addr_buffer[2] = {(uint8_t)(address>>8), (uint8_t)address}; uint8_t addr_buffer[2] = {(uint8_t)(address >> 8), (uint8_t)address};
int32_t error = PIOS_I2C_Transfer(I2C_Write_WithoutStop, BMP085_I2C_ADDR, addr_buffer, 2); int32_t error = PIOS_I2C_Transfer(I2C_Write_WithoutStop, BMP085_I2C_ADDR, addr_buffer, 2);
if(!error) { if(!error) {
error = PIOS_I2C_TransferWait(); error = PIOS_I2C_TransferWait();
} }
/* Now receive byte(s) */ /* Now receive byte(s) */
if(!error) { if(!error) {
error = PIOS_I2C_Transfer(I2C_Read, BMP085_I2C_ADDR, buffer, len); error = PIOS_I2C_Transfer(I2C_Read, (BMP085_I2C_ADDR + 1), buffer, len);
} }
if(!error) { if(!error) {
error = PIOS_I2C_TransferWait(); error = PIOS_I2C_TransferWait();
@ -262,7 +261,7 @@ int32_t PIOS_BMP085_Write(uint16_t address, uint8_t *buffer, uint8_t len)
WriteBuffer[i+2] = buffer[i]; WriteBuffer[i+2] = buffer[i];
} }
int32_t error = PIOS_I2C_Transfer(I2C_Write, BMP085_I2C_ADDR, WriteBuffer, len+2); int32_t error = PIOS_I2C_Transfer(I2C_Write, BMP085_I2C_ADDR, WriteBuffer, len + 2);
if(!error) { if(!error) {
error = PIOS_I2C_TransferWait(); error = PIOS_I2C_TransferWait();

2
flight/PiOS/inc/pios_bmp085.h
View File

@ -27,7 +27,7 @@
#define PIOS_BMP085_H #define PIOS_BMP085_H
/* BMP085 Addresses */ /* BMP085 Addresses */
#define BMP085_I2C_ADDR (0xEF >> 1) #define BMP085_I2C_ADDR 0xEE
#define BMP085_CALIB_ADDR 0xAA #define BMP085_CALIB_ADDR 0xAA
#define BMP085_CALIB_LEN 22 #define BMP085_CALIB_LEN 22
#define BMP085_CTRL_ADDR 0xF4 #define BMP085_CTRL_ADDR 0xF4