mpi_command_handling.h File Reference

#include <stdint.h>
#include <stddef.h>
#include "mpi/mpi_types.h"
#include "littlefs/lfs.h"

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Functions
uint8_t	MPI_send_command_get_response (const uint8_t *bytes_to_send, const size_t bytes_to_send_len, uint8_t *rx_buffer, const size_t rx_buffer_max_size, uint16_t *rx_buffer_len)
	Sends commandcode+params to the MPI as bytes.
uint8_t	MPI_enable_active_mode (const char output_file_path[])
	Turns on MPI science mode and Enables DMA interrupt for MPI channel.
uint8_t	MPI_disable_active_mode ()
uint8_t	MPI_validate_command_response (const uint8_t command_code, uint8_t *rx_buffer, const uint16_t rx_buffer_len)
	The MPI responds to each telecommand with a response code consisting of an echo of the telecommand code byte and a status byte (either 254 or OxFE) for success or error code otherwise.

Variables
static const uint8_t	MPI_COMMAND_SUCCESS_RESPONSE_VALUE = 0xFE
volatile MPI_rx_mode_t	MPI_current_uart_rx_mode
	Current mode under which the MPI is being operated.
uint8_t	MPI_science_data_file_is_open
uint32_t	MPI_science_data_bytes_lost
lfs_file_t	MPI_science_data_file_pointer
uint32_t	MPI_recording_start_uptime_ms

Function Documentation

MPI_disable_active_mode()

uint8_t MPI_disable_active_mode

(

)

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MPI_enable_active_mode()

uint8_t MPI_enable_active_mode

(

const char

output_file_path[]

)

Turns on MPI science mode and Enables DMA interrupt for MPI channel.

Returns

0: MPI and DMA successfully enabled, < 0: Error

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MPI_send_command_get_response()

uint8_t MPI_send_command_get_response	(	const uint8_t *	bytes_to_send,
		const size_t	bytes_to_send_len,
		uint8_t *	rx_buffer,
		const size_t	rx_buffer_max_size,
		uint16_t *	rx_buffer_len )

Sends commandcode+params to the MPI as bytes.

Parameters

bytes_to_send	Buffer containing the telecommand + params (IF ANY) as hex bytes
bytes_to_send_len	Size of telecommand buffer
rx_buffer	Buffer to store incoming response from the MPI
rx_buffer_max_size	The maximum size of the MPI response buffer
rx_buffer_len	Pointer to variable that will contain the length of the populated MPI response buffer

Returns

0: Success, 2: Failed UART transmission, 3: Failed UART reception, 4: Timeout waiting for 1st byte from MPI, 8: Not enough space in the MPI response buffer

Note

If the MPI is in "science data" mode, it will be disabled after the command is executed.

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MPI_validate_command_response()

uint8_t MPI_validate_command_response	(	const uint8_t	command_code,
		uint8_t *	rx_buffer,
		const uint16_t	rx_buffer_len )

The MPI responds to each telecommand with a response code consisting of an echo of the telecommand code byte and a status byte (either 254 or OxFE) for success or error code otherwise.

Parameters

tx_buffer	MPI telecommand buffer containing bytes sent
rx_buffer	MPI response buffer containing bytes received
tx_buffer_size	Size of the MPI response buffer

Returns

0: MPI successfully executed telecommand, 5: MPI failed to execute telecommand, 6: Invalid response from the MPI

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Variable Documentation

MPI_COMMAND_SUCCESS_RESPONSE_VALUE

const uint8_t MPI_COMMAND_SUCCESS_RESPONSE_VALUE = 0xFE

static

MPI_current_uart_rx_mode

volatile MPI_rx_mode_t MPI_current_uart_rx_mode

extern

Current mode under which the MPI is being operated.

MPI_recording_start_uptime_ms

uint32_t MPI_recording_start_uptime_ms

extern

MPI_science_data_bytes_lost

uint32_t MPI_science_data_bytes_lost

extern

MPI_science_data_file_is_open

uint8_t MPI_science_data_file_is_open

extern

MPI_science_data_file_pointer

lfs_file_t MPI_science_data_file_pointer

extern