Bus Pirate Edu Kit Exercise no.9

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Revision as of 13:29, 11 April 2013 (view source) Arakis (Talk | contribs) (→Bus Pirate Terminal) ← Older edit		Revision as of 13:31, 11 April 2013 (view source) Arakis (Talk | contribs) (→Bus Pirate Terminal) Newer edit →
Line 47:		Line 47:
	<nl2br>		<nl2br>
-	HiZ>m	+	HiZ>m'''<<<the mode command'''
	1. HiZ		1. HiZ
	2. 1-WIRE		2. 1-WIRE
Line 58:		Line 58:
	x. exit(without change)		x. exit(without change)
-	(1)>5	+	(1)>5'''<<<select the SPI mode<<<'''
	Set speed:		Set speed:
	1. 30KHz		1. 30KHz
Line 65:		Line 65:
	4. 1MHz		4. 1MHz
-	(1)>4	+	(1)>3'''<<<set the SPI speed to 250 KHz<<<'''
	Clock polarity:		Clock polarity:
	1. Idle low *default		1. Idle low *default
	2. Idle high		2. Idle high
-	(1)>1	+	(1)>1'''<<<set clock polarity to ''idle low'''''
	Output clock edge:		Output clock edge:
	1. Idle to active		1. Idle to active
	2. Active to idle *default		2. Active to idle *default
-	(2)>2	+	(2)>2'''<<<set output clock edge to ''active to idle'''''
	Input sample phase:		Input sample phase:
	1. Middle *default		1. Middle *default
	2. End		2. End
-	(1)>1	+	(1)>1'''<<<select the middle input sample phase'''
	CS:		CS:
	1. CS		1. CS
	2. /CS *default		2. /CS *default
-	(2)>2	+	(2)>2'''<<<select the inverted CS signal (active low)'''
	Select output type:		Select output type:
	1. Open drain (H=Hi-Z, L=GND)		1. Open drain (H=Hi-Z, L=GND)
	2. Normal (H=3.3V, L=GND)		2. Normal (H=3.3V, L=GND)
-	(1)>2	+	(1)>2'''<<<set the output type to normal'''
	Ready		Ready
-	SPI>W	+	SPI>W'''<<<turn on the power supplies'''
	POWER SUPPLIES ON		POWER SUPPLIES ON
		+	</nl2br>
		+
		+
		+	<nl2br>
	SPI>[0b110]		SPI>[0b110]
	/CS ENABLED		/CS ENABLED
	WRITE: 0x06		WRITE: 0x06
	/CS DISABLED		/CS DISABLED
		+	</nl2br>
		+
		+
		+	<nl2br>
	SPI>[0b10 0 1 2 3 4 5]		SPI>[0b10 0 1 2 3 4 5]
	/CS ENABLED		/CS ENABLED
Line 108:		Line 116:
	WRITE: 0x05		WRITE: 0x05
	/CS DISABLED		/CS DISABLED
		+	</nl2br>
		+
		+
		+	<nl2br>
	SPI>[0b11 0 r:5]		SPI>[0b11 0 r:5]
	/CS ENABLED		/CS ENABLED
Line 114:		Line 126:
	READ: 0x01 0x02 0x03 0x04 0x05		READ: 0x01 0x02 0x03 0x04 0x05
	/CS DISABLED		/CS DISABLED
		+	</nl2br>
		+
		+
		+	<nl2br>
	SPI>m		SPI>m
	1. HiZ		1. HiZ

---

Revision as of 13:31, 11 April 2013

Contents 1 Overview 2 The Circuit 2.1 Breadboard legend 3 Bus Pirate Terminal 4 Not Working? 5 Taking it further

Overview

The Circuit

Breadboard legend

IC Location	Breadboard wiring legend
IC PIN1 (+) PIN2 (-) 25LC040A E14 E15	Signal name Contact1 Contact2 5V BP_5V BB_+_left 5V BB_+_left BB_+_right 5V BB_+_left A16 5V BB_+_right J14 5V BB_+_right J15 GND BP_GND BB_-_left GND BB_-_left A17 MOSI BP_MOSI J17 MISO BP_MISO A15 CLK BP_CLK J16 CS BP_CS A14

• The (+) and (-) next to PIN1 and PIN2 are intended for devices such as LEDs, where PIN1 should be the anode and connected to a higher potential then PIN2.

Bus Pirate Terminal

HiZ>m<<<the mode command
1. HiZ
2. 1-WIRE
3. UART
4. I2C
5. SPI
6. 2WIRE
7. 3WIRE
8. LCD
x. exit(without change)

(1)>5<<<select the SPI mode<<<
Set speed:
1. 30KHz
2. 125KHz
3. 250KHz
4. 1MHz

(1)>3<<<set the SPI speed to 250 KHz<<<
Clock polarity:
1. Idle low *default
2. Idle high

(1)>1<<<set clock polarity to idle low
Output clock edge:
1. Idle to active
2. Active to idle *default

(2)>2<<<set output clock edge to active to idle
Input sample phase:
1. Middle *default
2. End

(1)>1<<<select the middle input sample phase
CS:
1. CS
2. /CS *default

(2)>2<<<select the inverted CS signal (active low)
Select output type:
1. Open drain (H=Hi-Z, L=GND)
2. Normal (H=3.3V, L=GND)

(1)>2<<<set the output type to normal
Ready
SPI>W<<<turn on the power supplies
POWER SUPPLIES ON

SPI>[0b110]
/CS ENABLED
WRITE: 0x06
/CS DISABLED

SPI>[0b10 0 1 2 3 4 5]
/CS ENABLED
WRITE: 0x02
WRITE: 0x00
WRITE: 0x01
WRITE: 0x02
WRITE: 0x03
WRITE: 0x04
WRITE: 0x05
/CS DISABLED

SPI>[0b11 0 r:5]
/CS ENABLED
WRITE: 0x03
WRITE: 0x00
READ: 0x01 0x02 0x03 0x04 0x05
/CS DISABLED

SPI>m
1. HiZ
2. 1-WIRE
3. UART
4. I2C
5. SPI
6. 2WIRE
7. 3WIRE
8. LCD
x. exit(without change)

(1)>1
Ready
HiZ>

Not Working?

Taking it further