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Read and Write Flux commands are extended.

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1. Read flux can be terminated on a number of ticks as well as number of IDX.
2. Write flux can be started immediately rather than index cued.
This commit is contained in:
Keir Fraser
2020-12-05 17:52:45 +00:00
parent 58f9b92ca6
commit b69b4cdef1
3 changed files with 43 additions and 28 deletions
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18
inc/cdc_acm_protocol.h
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@@ -14,7 +14,7 @@
* GREASEWEAZLE COMMAND SET
*/
/* CMD_GET_INFO, length=3, 0. Returns 32 bytes after ACK. */
/* CMD_GET_INFO, length=3, idx. Returns 32 bytes after ACK. */
#define CMD_GET_INFO 0
/* [BOOTLOADER] CMD_UPDATE, length=6, <update_len>.
* Host follows with <update_len> bytes.
@@ -33,10 +33,10 @@
#define CMD_GET_PARAMS 5
/* CMD_MOTOR, length=4, drive#, on/off. Turn on/off a drive motor. */
#define CMD_MOTOR 6
/* CMD_READ_FLUX, length=2-3. Optionally include all or part of gw_read_flux.
/* CMD_READ_FLUX, length=2-8. Argument is gw_read_flux.
* Returns flux readings until EOStream. */
#define CMD_READ_FLUX 7
/* CMD_WRITE_FLUX, length=2-3. Optionally include all or part of gw_write_flux.
/* CMD_WRITE_FLUX, length=2-4. Argument is gw_write_flux.
* Host follows with flux readings until EOStream. */
#define CMD_WRITE_FLUX 8
/* CMD_GET_FLUX_STATUS, length=2. Last read/write status returned in ACK. */
@@ -152,17 +152,23 @@ struct packed gw_bw_stats {
/* CMD_READ_FLUX */
struct packed gw_read_flux {
uint16_t nr_idx; /* default: 2 */
/* Maximum ticks to read for (or 0, for no limit). */
uint32_t ticks;
/* Maximum index pulses to read (or 0, for no limit). */
uint16_t max_index;
};
/* CMD_WRITE_FLUX */
struct packed gw_write_flux {
uint8_t terminate_at_index; /* default: 0 */
/* If non-zero, start the write at the index pulse. */
uint8_t cue_at_index;
/* If non-zero, terminate the write at the next index pulse. */
uint8_t terminate_at_index;
};
/* CMD_ERASE_FLUX */
struct packed gw_erase_flux {
uint32_t erase_ticks;
uint32_t ticks;
};
/* CMD_SINK_SOURCE_BYTES */