Sony's LANC camera control protocol project.
Dependencies: aconno_LANC aconno_bsp aconno_SEGGER_RTT
main.cpp
- Committer:
- jurica238814
- Date:
- 2017-10-13
- Revision:
- 0:d616ca59aad8
- Child:
- 1:3e3dded8192f
File content as of revision 0:d616ca59aad8:
/* * Example to demonstrate usage of the nrf52's I2S interface * * Made by Jurica Resetar @ aconno * jurica_resetar@yahoo.com * More info @ aconno.de * * All rights reserved * */ #include "mbed.h" #include "acd52832_bsp.h" #define MY_BUF_SIZE 3*8*2 #define LANC_H 0xFFFF, 0xFFFF, 0xFFFF #define LANC_L 0x0000, 0x0000, 0x0000 /* * Bitovi na I2S bus idu od MSBa do LSBa */ #define REC_CMD_1 (0x18) // 0xE7 or 0x18 #define REC_CMD_2 (0x33) // 0xCC or 0x33 uint16_t my_tx_buf[MY_BUF_SIZE] = {LANC_L,LANC_L,LANC_L,LANC_H, LANC_H,LANC_L,LANC_L,LANC_L, LANC_L,LANC_L,LANC_H,LANC_H,LANC_L,LANC_L,LANC_H,LANC_H}; uint8_t my_rx_buf[10] = {}; uint8_t flag = 0; InterruptIn button(PIN_BUTTON); void sendCommand(void){ NRF_I2S->TASKS_START = 1; while(!NRF_I2S->EVENTS_TXPTRUPD); // Wait for the data to be send NRF_I2S->EVENTS_TXPTRUPD = 0; flag = 1; } int main(void){ NRF_I2S->CONFIG.RXEN = 0; // Disable reception NRF_I2S->CONFIG.TXEN = 1; // Enable transmission NRF_I2S->CONFIG.MCKEN = 1; // Enable MCK generator //NRF_I2S->CONFIG.MCKFREQ = 0x04100000; // DIV 63 //NRF_I2S->CONFIG.RATIO = 0; // Ratio = 32x NRF_I2S->CONFIG.MCKFREQ = 0x08200000; // DIV 31 NRF_I2S->CONFIG.RATIO = 2; // Ratio = 64x NRF_I2S->CONFIG.SWIDTH = 1; // Sample width = 16 bit NRF_I2S->CONFIG.ALIGN = 1; // Alignment = Right NRF_I2S->CONFIG.FORMAT = 0; // Format = I2S NRF_I2S->CONFIG.CHANNELS = 0; // Use stereo // In debug mode NRF_I2S->PSEL.LRCK = 26; // LRCK routed to pin 26 NRF_I2S->PSEL.SDOUT = 28; // SDOUT routed to pin 28 NRF_I2S->PSEL.SCK = 30; // SCK routed to pin 30 NRF_I2S->PSEL.MCK = 0x80000000; // MCK disconnected NRF_I2S->PSEL.SDIN = 0x80000000; // SDIN disconnected NRF_I2S->TXD.PTR = (uint32_t)my_tx_buf; NRF_I2S->RXD.PTR = (uint32_t)my_rx_buf; NRF_I2S->RXTXD.MAXCNT = MY_BUF_SIZE/2; // Ajde ustanovi zašto pobogu /2 NRF_I2S->ENABLE = 1; //NRF_I2S->TASKS_START = 1; button.rise(sendCommand); while(1){ if(flag){ wait_ms(50); NRF_I2S->TASKS_STOP = 1; while(!NRF_I2S->EVENTS_STOPPED); NRF_I2S->EVENTS_STOPPED = 0; flag = 0; } } }