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DLewi
Associate II
since ‎2019-01-24
‎2023-06-14

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User Activity

Why do some misaligned operands require more memory cycles than expected to read from the memory of a Cortex-M4?

2021-01-25
I wrote some software that reliably measures the number of memory cycles required to retrieve 16 and 32-bit operands from the Cortex-M4 memory. When a 16-bit operand fits within a 32-bit physical word, I would have expected that only a single memory ...

L3GD20 and Gimball Lock?

2019-01-27
I’m trying to use the L3GD20 gyro to compute angular position from the angular velocity measurements returned from the gyro. Most of the time, everything works as expected. However, if I move the gyro in two directions (roll and pitch) at the same ti...

What is the minimal initialization sequence for the L3GD20 Gyro?

2019-01-24
Two questions:(1) If I want to poll the status register instead of using interrupts, and don't want to use the FIFO, is the following initialization sequence sufficient? uint8_t cmd ; GYRO_IO_Init() ; // Enable Block Data Update and full scale = 2000...
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