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Code Issues Releases Activity

Set up the SPI interface to the l3gd20

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This commit is contained in:
James Cotton 2012-01-20 14:14:57 -06:00
parent 8f535bd28c
commit a5d006d1a9
3 changed files with 137 additions and 0 deletions
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1
flight/CopterControl/Makefile
View File

@ -223,6 +223,7 @@ SRC += $(PIOSCOMMON)/pios_crc.c
SRC += $(PIOSCOMMON)/pios_flashfs_objlist.c
SRC += $(PIOSCOMMON)/pios_flash_w25x.c
SRC += $(PIOSCOMMON)/pios_adxl345.c
SRC += $(PIOSSTM32F10X)/pios_l3gd20.c
SRC += $(PIOSCOMMON)/pios_com.c
SRC += $(PIOSCOMMON)/pios_i2c_esc.c
SRC += $(PIOSCOMMON)/pios_bmp085.c

130
flight/CopterControl/System/pios_board.c
View File

@ -38,6 +38,107 @@
#include <pios_spi_priv.h>
/* Gyro interface */
void PIOS_SPI_gyro_irq_handler(void);
void DMA1_Channel2_IRQHandler() __attribute__ ((alias ("PIOS_SPI_gyro_irq_handler")));
void DMA1_Channel3_IRQHandler() __attribute__ ((alias ("PIOS_SPI_gyro_irq_handler")));
static const struct pios_spi_cfg pios_spi_gyro_cfg = {
.regs = SPI1,
.init = {
.SPI_Mode = SPI_Mode_Master,
.SPI_Direction = SPI_Direction_2Lines_FullDuplex,
.SPI_DataSize = SPI_DataSize_8b,
.SPI_NSS = SPI_NSS_Soft,
.SPI_FirstBit = SPI_FirstBit_MSB,
.SPI_CRCPolynomial = 7,
.SPI_CPOL = SPI_CPOL_High,
.SPI_CPHA = SPI_CPHA_2Edge,
.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8, /* 10 Mhz */
},
.dma = {
.ahb_clk = RCC_AHBPeriph_DMA1,
.irq = {
.flags = (DMA1_FLAG_TC2 | DMA1_FLAG_TE2 | DMA1_FLAG_HT2 | DMA1_FLAG_GL2),
.init = {
.NVIC_IRQChannel = DMA1_Channel2_IRQn,
.NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
.NVIC_IRQChannelSubPriority = 0,
.NVIC_IRQChannelCmd = ENABLE,
},
},
.rx = {
.channel = DMA1_Channel2,
.init = {
.DMA_PeripheralBaseAddr = (uint32_t)&(SPI1->DR),
.DMA_DIR = DMA_DIR_PeripheralSRC,
.DMA_PeripheralInc = DMA_PeripheralInc_Disable,
.DMA_MemoryInc = DMA_MemoryInc_Enable,
.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte,
.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte,
.DMA_Mode = DMA_Mode_Normal,
.DMA_Priority = DMA_Priority_Medium,
.DMA_M2M = DMA_M2M_Disable,
},
},
.tx = {
.channel = DMA1_Channel3,
.init = {
.DMA_PeripheralBaseAddr = (uint32_t)&(SPI1->DR),
.DMA_DIR = DMA_DIR_PeripheralDST,
.DMA_PeripheralInc = DMA_PeripheralInc_Disable,
.DMA_MemoryInc = DMA_MemoryInc_Enable,
.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte,
.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte,
.DMA_Mode = DMA_Mode_Normal,
.DMA_Priority = DMA_Priority_Medium,
.DMA_M2M = DMA_M2M_Disable,
},
},
},
.ssel = {
.gpio = GPIOA,
.init = {
.GPIO_Pin = GPIO_Pin_4,
.GPIO_Speed = GPIO_Speed_50MHz,
.GPIO_Mode = GPIO_Mode_Out_PP,
},
},
.sclk = {
.gpio = GPIOA,
.init = {
.GPIO_Pin = GPIO_Pin_5,
.GPIO_Speed = GPIO_Speed_50MHz,
.GPIO_Mode = GPIO_Mode_AF_PP,
},
},
.miso = {
.gpio = GPIOA,
.init = {
.GPIO_Pin = GPIO_Pin_6,
.GPIO_Speed = GPIO_Speed_50MHz,
.GPIO_Mode = GPIO_Mode_IPU,
},
},
.mosi = {
.gpio = GPIOA,
.init = {
.GPIO_Pin = GPIO_Pin_7,
.GPIO_Speed = GPIO_Speed_50MHz,
.GPIO_Mode = GPIO_Mode_AF_PP,
},
},
};
static uint32_t pios_spi_gyro_id;
void PIOS_SPI_gyro_irq_handler(void)
{
/* Call into the generic code to handle the IRQ for this specific device */
PIOS_SPI_IRQ_Handler(pios_spi_gyro_id);
}
/* Flash/Accel Interface
*
* NOTE: Leave this declared as const data so that it ends up in the
@ -1034,6 +1135,35 @@ uint32_t pios_com_vcp_id;
uint32_t pios_com_gps_id;
uint32_t pios_com_bridge_id;
#include "pios_l3gd20.h"
static const struct pios_l3gd20_cfg pios_l3gd20_cfg = {
.drdy = {
.gpio = GPIOA,
.init = {
.GPIO_Pin = GPIO_Pin_3,
.GPIO_Speed = GPIO_Speed_10MHz,
.GPIO_Mode = GPIO_Mode_IPU,
},
},
.eoc_exti = {
.init = {
.EXTI_Line = EXTI_Line3, // matches above GPIO pin
.EXTI_Mode = EXTI_Mode_Interrupt,
.EXTI_Trigger = EXTI_Trigger_Rising,
.EXTI_LineCmd = ENABLE,
},
},
.eoc_irq = {
.init = {
.NVIC_IRQChannel = EXTI3_IRQn,
.NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_HIGH,
.NVIC_IRQChannelSubPriority = 0,
.NVIC_IRQChannelCmd = ENABLE,
},
},
.gyro_range = PIOS_L3GD20_SCALE_500_DEG,
};
/**
* PIOS_Board_Init()
* initializes all the core subsystems on this specific hardware

6
flight/PiOS/inc/pios_stm32.h
View File

@ -53,6 +53,12 @@ struct stm32_gpio {
GPIO_InitTypeDef init;
};
struct stm32_exti {
uint8_t pin_source;
uint8_t port_source;
EXTI_InitTypeDef init;
};
/**
* @}
* @}