I need SPI 5-wire interface code for the STM32L476 with the LSM303AGR Basic function is to calculate Heading 25 times per second.
Using C++, STMCubeMX, and STM32L476IDE.
Chip is the STM32L476RET. Is this chip fast enpough?
Need heading 25 times per second for main loop processing. Using timer 3.
HAL is working, but is much to slow.
Do not know how much faster LL would be.
Code below for the Mag.
void Get_Mag (void); // Gets Mag, MagF, MagFG
// 1. Reads Mag x,y,z
// 2. Converts to 16 bits,
// 3. Converts to floating Point,
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_5,GPIO_PIN_SET); // Sets Mag CS On
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4,GPIO_PIN_RESET); // Sets XL CS Off
TX[0] = (OUTX_L_REG_M | 0x80);
Mag_Data[0] = 0;
HAL_SPI_TransmitReceive(&hspi1,&TX[0],&Mag_Data[0],7,100);
TX[0] = (OUTX_H_REG_M | 0x80);
Mag_Data[1] = 0;
HAL_SPI_TransmitReceive(&hspi1,&TX[0],&Mag_Data[1],4,100);
TX[0] = (OUTY_L_REG_M | 0x80);
Mag_Data[2] = 0;
HAL_SPI_TransmitReceive(&hspi1,&TX[0],&Mag_Data[2],2,100);
TX[0] = (OUTY_H_REG_M |
