Design-in of LPC11U24 (lqfp48) of mbed as Steppermotor controller with USB control.
Mbed repository of Stepper Motor Control board. Using mbed LPC11U24 chip with HID USB.
Hardware in copy repo on bitbucket https://bitbucket.org/jeroen3/stepper-motor-board
ByteOperations.cpp
- Committer:
- jeroen3
- Date:
- 2013-10-30
- Revision:
- 2:ddae311a4533
- Parent:
- 0:d0306c0cbee6
File content as of revision 2:ddae311a4533:
#include "ByteOperations.h" #include <stdint.h> /* low index equals low nibble */ /* Write 32 bit var to 4 bytes */ void write_32_to_8(int *i, uint8_t dst[], uint32_t src){ dst[(*i)++] = (src >> 0)&0xFF ; dst[(*i)++] = (src >> 8)&0xFF ; dst[(*i)++] = (src >> 16)&0xFF; dst[(*i)++] = (src >> 24)&0xFF; } /* Write 16 bit var to 2 bytes */ void write_16_to_8(int *i, uint8_t dst[], uint16_t src){ dst[(*i)++] = (src >> 0)&0xFF ; dst[(*i)++] = (src >> 8)&0xFF ; } /* Write 4 bytes to 32 bit var*/ uint32_t read_8_to_32(int *i, uint8_t *src){ uint32_t data = 0; data |= (src[(*i)++] << 0) ; data |= (src[(*i)++] << 8) ; data |= (src[(*i)++] << 16); data |= (src[(*i)++] << 24); return data; } /* Write 2 bytes to 16 bit var*/ uint16_t read_8_to_16(int *i, uint8_t *src){ uint16_t data = 0; data |= (src[(*i)++] << 0) ; data |= (src[(*i)++] << 8) ; return data; }