# Bus Pirate Edu Kit Exercise no.11

(Difference between revisions)
 Revision as of 14:35, 18 April 2013 (view source)Arakis (Talk | contribs) (→Bus Pirate Terminal)← Older edit Revision as of 14:35, 18 April 2013 (view source)Arakis (Talk | contribs) (→Bus Pirate Terminal)Newer edit → Line 47: Line 47: - HiZ>m + HiZ>m'''<<<''' 1. HiZ 1. HiZ 2. 1-WIRE 2. 1-WIRE Line 58: Line 58: x. exit(without change) x. exit(without change) - (1)>4 + (1)>4'''<<<''' Set speed: Set speed: 1. ~5KHz 1. ~5KHz Line 65: Line 65: 4. ~400KHz 4. ~400KHz - (1)>3 + (1)>3'''<<<''' Ready Ready - I2C>P + I2C>P'''<<<''' Pull-up resistors ON Pull-up resistors ON Warning: no voltage on Vpullup pin Warning: no voltage on Vpullup pin - I2C>W + I2C>W'''<<<''' POWER SUPPLIES ON POWER SUPPLIES ON Line 77: Line 77: - I2C>(1) + I2C>(1)'''<<<''' Searching I2C address space. Found devices at: Searching I2C address space. Found devices at: 0xDE(0x6F W) 0xDE(0x6F W) Line 86: Line 86: - I2C>[0xDE 0[0xDF r:9] + I2C>[0xDE 0[0xDF r:9]'''<<<''' I2C START BIT I2C START BIT WRITE: 0xDE ACK WRITE: 0xDE ACK Line 101: Line 101: - I2C>[0xde 0 0x80] + I2C>[0xde 0 0x80]'''<<<''' I2C START BIT I2C START BIT WRITE: 0xDE ACK WRITE: 0xDE ACK Line 112: Line 112: - I2C>[0xde 0[0xdf r:9] + I2C>[0xde 0[0xdf r:9]'''<<<''' I2C START BIT I2C START BIT WRITE: 0xDE ACK WRITE: 0xDE ACK Line 126: Line 126: - I2C>[0xde 0[0xdf r:9] + I2C>[0xde 0[0xdf r:9]'''<<<''' I2C START BIT I2C START BIT WRITE: 0xDE ACK WRITE: 0xDE ACK Line 140: Line 140: - I2C>m + I2C>m'''<<<''' 1. HiZ 1. HiZ 2. 1-WIRE 2. 1-WIRE Line 151: Line 151: x. exit(without change) x. exit(without change) - (1)>1 + (1)>1'''<<<''' Ready Ready HiZ> HiZ>

## The Circuit

IC PIN1 (+) PIN2 (-)
MCP7940M E14 E15
32KHz crystal C14 C15
C1 BB_-_left B14
C2 BB_-_left B15
Signal name Contact1 Contact2
5V BP_5V BB_+_left
5V BB_+_left BB_+_right
5V BB_+_right J14
5V BP_VPU BB_+_left
GND BP_GND BB_-_left
GND BB_-_left A17
MOSI BP_MOSI J17
CLK BP_CLK J16
• 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<<<
1. HiZ
2. 1-WIRE
3. UART
4. I2C
5. SPI
6. 2WIRE
7. 3WIRE
8. LCD
x. exit(without change)

(1)>4<<<
Set speed:
1. ~5KHz
2. ~50KHz
3. ~100KHz
4. ~400KHz

(1)>3<<<
I2C>P<<<
Pull-up resistors ON
Warning: no voltage on Vpullup pin
I2C>W<<<
POWER SUPPLIES ON

I2C>(1)<<<
Searching I2C address space. Found devices at:
0xDE(0x6F W)

I2C>[0xDE 0[0xDF r:9]<<<
I2C START BIT
WRITE: 0xDE ACK
WRITE: 0x00 ACK
I2C START BIT
WRITE: 0xDF ACK
READ: 0x00 ACK 0x00 ACK 0x00 ACK 0x01 ACK 0x01 ACK 0x01 ACK 0x01 ACK 0x80 ACK 0x00
NACK
I2C STOP BIT

I2C>[0xde 0 0x80]<<<
I2C START BIT
WRITE: 0xDE ACK
WRITE: 0x00 ACK
WRITE: 0x80 ACK
I2C STOP BIT

I2C>[0xde 0[0xdf r:9]<<<
I2C START BIT
WRITE: 0xDE ACK
WRITE: 0x00 ACK
I2C START BIT
WRITE: 0xDF ACK
READ: 0x82 ACK 0x00 ACK 0x00 ACK 0x21 ACK 0x01 ACK 0x01 ACK 0x01 ACK 0x80 ACK 0x00
NACK
I2C STOP BIT

I2C>[0xde 0[0xdf r:9]<<<
I2C START BIT
WRITE: 0xDE ACK
WRITE: 0x00 ACK
I2C START BIT
WRITE: 0xDF ACK
READ: 0xD4 ACK 0x01 ACK 0x00 ACK 0x21 ACK 0x01 ACK 0x01 ACK 0x01 ACK 0x80 ACK 0x00
NACK
I2C STOP BIT

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

(1)>1<<<