DV164122【PDF 83/120 页】ANALYZER SRL PICKIT W/DEMO BOARD

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PICkit? Serial Analyzer Firmware

TAG bytes 0x03, 0x04 and 0x05 write data bytes to their respective script buffers. In

the current architecture, Script Buffer 1 (CBUF1) is used to store communication com-

mands that will be fetched and executed by the COMM block. So, TAG byte 0x03 is

used to delineate data that is to be sent to the script buffer including communication

protocols to be sent to the unit under test. TAG bytes 0x04 and 0x05 are typically not

used. TAG bytes 0x06 and 0x07 configure the LEDs as follows:

TABLE 9-8:

LED CONFIGURATION

Description

Set immediate

Blink once – On or Off

Blink continuous

Mode

M = CFG[7:6]

00

10

11

State

S = CFG[5]

1 = On, 0 = Off

1 = On, 0 = Off

initial state: 1 = On, 0 = Off

Time

T = CFG[4:0]

N/A

T + 1 units

T + 1 units

Reserved

Legend:

Note:

01

Time “unit” = 50 ms

Set LED to blink continuously, on/off time = 100 ms.

CFG = 0xC1 (M = b’11’, S = 0, T = 1)

EXEC data TAG bytes identify data streams sent from the EXEC block back to the host

software.

TABLE 9-9:

EXEC TAG (EDATA) BYTES

TAG/EDATA

0x80

0x81

0x82

0x83

0x84

0x85

0x86

LEN

1

1

25

21

7

N+2

N+2

Name

END OF DATA

FIRMWARE_VERSION

CONTROL_BLOCK_DATA

STATUS_BLOCK_DATA

CBUF_STATUS

CBUF1_DATA

CBUF2_DATA

Description

Marks the end of valid data

0

TAG

Firmware version

0

TAG

1

Data: 20-byte STATUS_BLOCK

2

Date: major version

Control block contents

0

TAG

1:24

Data: CONTROL_BLOCK

Status block contents

0

TAG

1:20

Data: minor version

Status block contents

0

TAG

1

Data: CBUF1: # bytes used

2

Data: CBUF1: # bytes unused

3

Data: CBUF2: # bytes used

4

Data: CBUF2: # bytes unused

5

Data: CBUF3: # bytes used

6

Data: CBUF3: # bytes unused

Data from CBUF1

0

TAG

1

Byte count

2 : N+1

Data: from CBUF1

Data from CBUF2

? 2007 Microchip Technology Inc.

0

1

2 : N+1

TAG

Byte count

Data: from CBUF2

DS51647A-page 77

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