demo sample to drive PCU9955 and PCA9629
Dependencies: mbed I2C_slaves PCU9669 parallel_bus
Fork of mini_board_PCU9669 by
What is this?
This is a sample code to operate PCU9955 (16ch constant-current LED controller) and PCA9629 (intelligent stepper motor controller) through PCU9669 (3 channels (UltraFast mode * 2ch, FastModePlus *1ch) I2C bus controller).
This demo is written based on mini_board_PCU9669 sample code library and its API.
http://mbed.org/users/nxp_ip/code/mini_board_PCU9669/
Demo will shows how the LED controllers and stepper motor controllers works.
It uses a mini_board_PCU9669 board with mbed, 8 of PCU9955s and 5 PCA9629s.
Demo setup
(left-top: PCU9955 boards, left-bottom: mini-board PCU9669 with mbed, right: PCA9629 x5 board)
Board connections and device addresses
Reference:
User manual of PCU9669 demo board: Mini board PCU9669
http://www.nxp.com/documents/user_manual/UM10580.pdf
sample code : mbed programs
Import programmini_board_PCU9669
mini board PCU9669 (and PCA9665) sample code
Import programPCA9955_Hello
PCA9955 16 channel current drive(sink) LED driver sample code
Import programPCA9955_simple
very simple sample code for PCA9955 (16 channel current control LED driver)
Import programPCA9629_Hello
Sample code for PCA9629 operation
device infomation
PCU9669 (Parallel bus to 1 channel Fm+ and 2 channel UFm I2C-bus controller)
PCU9955 (16-channel UFm I²C-bus 57 mA constant current LED driver)
PCA9955 (16-channel Fm+ I²C-bus 57 mA constant current LED driver)
PCU9629 (Fm+ I2C-bus stepper motor controller)
Diff: main.c
- Revision:
- 21:3b75b545ecfb
- Parent:
- 20:a266fa588bd8
diff -r a266fa588bd8 -r 3b75b545ecfb main.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.c Fri Oct 26 07:03:47 2012 +0000 @@ -0,0 +1,123 @@ +/** A demo code for PCU9669, PCU9955 and PCA9629 + * + * @author Tedd OKANO, NXP Semiconductors + * @version 1.0 + * @date 26-Oct-2012 + * + * Released under the MIT License: http://mbed.org/license/mit + * + * An operation sample of PCU9669 I2C bus controller. + * The mbed accesses the PCU9669's parallel port (8 bit address and 8 bit data) using bit-banging. + * The bit-banging is poerformed by PortInOut function of mbed library. + * + * DEMO CODE version + * v0.5 written on 13-Oct-2011 + * v1.0 poerted to PCU9669 sample code API + * + * Simple code sample for PCU9669 is available on + * http://mbed.org/users/nxp_ip/code/mini_board_PCU9669/ + */ + + +#include "transfer_manager.h" +#include "PCU9669_access.h" +#include "hardware_abs.h" +#include "PCx9955_reg.h" +#include "PCA9629_reg.h" +#include "demo_patterns.h" + +#include "mbed.h" + +#define TICKER_INTERVAL 0.008 + +#define RESET_PULSE_WIDTH_US 10 // Minimum pulse width is 4us for PCU9669 +#define RESET_RECOVERY_US 1000 + +Ticker op; + + +void operation( void ); +void led_action( int count ); +void motor_action( int count ); +void interrupt_handler( void ); +void init_slave_devices( void ); +void single_byte_write_into_a_PCA9629( char ch, char i2c_addr, char reg_addr, char val ); +void set_one_turn_on_each_end( void ); + +int main() { + printf( "\r\nPCU9669 simple demo program on mbed (16 device check)\r\n build : %s (UTC), %s \r\n\r\n", __TIME__, __DATE__ ); + + hardware_initialize(); // initializing bit-banging parallel port + reset( RESET_PULSE_WIDTH_US, RESET_RECOVERY_US ); // assert hardware /RESET sgnal + + if ( start_bus_controller( PCU9669_ID ) ) // wait the bus controller ready and check chip ID + return 1; + + write_ch_register( CH_FM_PLUS, INTMSK, 0x30 ); // set bus controller to ignore NAK return from Fm+ slaves + install_ISR( &interrupt_handler ); // interrupt service routine install + + init_slave_devices(); // set all slaves' all registers and configure buffer for the operation + + op.attach( &operation, TICKER_INTERVAL ); + + while ( 1 ) { + } +} + +void operation( void ) { + pattern_update( gCount ); + + motor_action( gCount ); // motor operation + led_action( gCount ); // LED operation + + gCount++; +} + + +void led_action( int count ) { + buffer_overwrite( CH_UFM1, 0, 1, gLEDs + N_LED_PER_BOARD * 0, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM1, 1, 1, gLEDs + N_LED_PER_BOARD * 1, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM1, 2, 1, gLEDs + N_LED_PER_BOARD * 2, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM1, 3, 1, gLEDs + N_LED_PER_BOARD * 3, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM2, 0, 1, gLEDs + N_LED_PER_BOARD * 4, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM2, 1, 1, gLEDs + N_LED_PER_BOARD * 5, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM2, 2, 1, gLEDs + N_LED_PER_BOARD * 6, N_LED_PER_BOARD ); + buffer_overwrite( CH_UFM2, 3, 1, gLEDs + N_LED_PER_BOARD * 7, N_LED_PER_BOARD ); + + start( CH_UFM1 ); + start( CH_UFM2 ); +} + + +void motor_action( int count ) { +#if 0 + static char mot_cntl_order[ 5 ] = { + MOT_ADDR5, MOT_ADDR6, MOT_ADDR7, MOT_ADDR8, MOT_ADDR9 + }; + static char motor_count = 0; + + if ( !(count & 0x1F) ) { + single_byte_write_into_a_PCA9629( CH_FM_PLUS, mot_cntl_order[ motor_count % 5 ], 0x26, 0x80 | ((motor_count / 5) & 0x1) ); + motor_count++; + } +#endif + +} + +void interrupt_handler( void ) { + char global_status; + char channel_status; + + global_status = read_data( CTRLSTATUS ); + + if ( global_status & 0x01 ) { // ch0 + channel_status = read_ch_register( 0, CHSTATUS ); + } + if ( global_status & 0x02 ) { + channel_status = read_ch_register( 1, CHSTATUS ); + } + if ( global_status & 0x04 ) { + channel_status = read_ch_register( 2, CHSTATUS ); + } +// printf( "ISR channel_status 0x%02X\r\n", channel_status ); +}