![](/media/cache/profiles/a53d1388191884b75c48bebb18709bfb.50x50_q85.jpg)
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_PCU9669.c
- Revision:
- 21:3b75b545ecfb
- Parent:
- 20:a266fa588bd8
--- a/main_PCU9669.c Fri Oct 26 05:59:55 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,123 +0,0 @@ -/** 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 ); -}