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Code Issues Releases Activity

PIOS_I2C now non-application specific.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@204 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
gussy 2010-02-28 06:57:59 +00:00 committed by gussy
parent 700116abd9
commit 22f02cb460
2 changed files with 18 additions and 18 deletions
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16
flight/OpenPilot/System/inc/pios_board.h
View File

@ -61,14 +61,14 @@
//------------------------
// I2C
//------------------------
#define I2C_GPIO_PORT GPIOB
#define I2C_SDA_PIN GPIO_Pin_11
#define I2C_SCL_PIN GPIO_Pin_10
#define I2C_DUTY_CYCLE I2C_DutyCycle_2
#define I2C_BUS_FREQUENCY 400000
#define I2C_TIMEOUT_VALUE 5000
#define IRQ_I2C_EV_PRIORITY 2
#define IRQ_I2C_ER_PRIORITY 2
#define PIOS_I2C_GPIO_PORT GPIOB
#define PIOS_I2C_SDA_PIN GPIO_Pin_11
#define PIOS_I2C_SCL_PIN GPIO_Pin_10
#define PIOS_I2C_DUTY_CYCLE I2C_DutyCycle_2
#define PIOS_I2C_BUS_FREQ 400000
#define PIOS_I2C_TIMEOUT_VALUE 5000
#define PIOS_I2C_IRQ_EV_PRIORITY 2
#define PIOS_I2C_IRQ_ER_PRIORITY 2
//------------------------
// Onboard Pressure sensor

20
flight/PiOS/STM32F10x/pios_i2c.c
View File

@ -86,11 +86,11 @@ int32_t PIOS_I2C_Init(void)
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
GPIO_InitStructure.GPIO_Pin = I2C_SCL_PIN;
GPIO_Init(I2C_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = PIOS_I2C_SCL_PIN;
GPIO_Init(PIOS_I2C_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = I2C_SDA_PIN;
GPIO_Init(I2C_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = PIOS_I2C_SDA_PIN;
GPIO_Init(PIOS_I2C_GPIO_PORT, &GPIO_InitStructure);
PIOS_I2C_InitPeripheral();
@ -101,13 +101,13 @@ int32_t PIOS_I2C_Init(void)
/* Configure and enable I2C2 interrupts */
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = I2C2_EV_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = IRQ_I2C_EV_PRIORITY;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = PIOS_I2C_IRQ_EV_PRIORITY;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = I2C2_ER_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = IRQ_I2C_ER_PRIORITY;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = PIOS_I2C_IRQ_ER_PRIORITY;
NVIC_Init(&NVIC_InitStructure);
/* No error */
@ -139,8 +139,8 @@ static void PIOS_I2C_InitPeripheral(void)
/* Set I2C clock bus clock params */
/* Note that the STM32 driver handles value <= 100kHz differently! (duty cycle always 1:1) */
/* Important: bus frequencies > 400kHz don't work stable */
I2C_InitStructure.I2C_DutyCycle = I2C_DUTY_CYCLE;
I2C_InitStructure.I2C_ClockSpeed = I2C_BUS_FREQUENCY;
I2C_InitStructure.I2C_DutyCycle = PIOS_I2C_DUTY_CYCLE;
I2C_InitStructure.I2C_ClockSpeed = PIOS_I2C_BUS_FREQ;
/* Trigger software reset via I2C_DeInit */
I2C_DeInit(i2cx->base);
@ -253,13 +253,13 @@ int32_t PIOS_I2C_TransferWait(void)
{
I2CRecTypeDef *i2cx = &I2CRec;
uint32_t repeat_ctr = I2C_TIMEOUT_VALUE;
uint32_t repeat_ctr = PIOS_I2C_TIMEOUT_VALUE;
uint16_t last_buffer_ix = i2cx->buffer_ix;
while(--repeat_ctr > 0) {
/* Check if buffer index has changed - if so, reload repeat counter */
if(i2cx->buffer_ix != last_buffer_ix) {
repeat_ctr = I2C_TIMEOUT_VALUE;
repeat_ctr = PIOS_I2C_TIMEOUT_VALUE;
last_buffer_ix = i2cx->buffer_ix;
}