# Bus Pirate Edu Kit Exercise no.9

## The Circuit

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)>4<<<set the SPI speed to 1 MHz<<<
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
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