ISD4004 voice chip C51 driver source code

ISD4004 voice chip C51 driver source code / * SPI isd4004.h * / # include "reg51.h" #include "intrins.h" sbit _cs = p0 ^ 0; sbit _sclk = p0 ^ 3; sbit _mosi = p0 ^ 1; sbit _miso = p0 ^ 2; SBIT _RAC = P0 ^ 4; sbit _int = p0 ^ 5; void delay (unsigned int I) // delay program {while (i -);} void stopmode () // stop {UNSIGNED CHAR M, I, J _CS = 1; _sclk = 0; _CS = 0; m = 0x30; for (i = 0; I<8; i ++) {m = _code_(m, 1); j = m<<1; _mosi = CY; _SCLK = 0; _sclk = 1;} _cs = 1;} void PowerDown () // lower electricity {UNSIGNED CHAR M, I, J; _CS = 1; _sclk = 0; _cs = 0; m = 0x10; for (i = 0; i<8; i ++) {m = _code_(m, 1); j = m<<1; _Mosi = cy; _sclk = 0; _sclk = 1;} _cs = 1;} void powerup () Power {UNSIGNED Char M, I, J; _CS = 1; _SCLK = 0; _CS = 0; M = 0x20; for (i = 0; I<8; i ++) {m = _cror_(m, 1) ; j = m<<1; _mosi = cy; _sclk = 0; _sclk = 1;} _cs = 1;} Void record4004 (unsigned int address) recording address - recording address 0 --- 2400 {Unsigned Char i , M, J; Unsigned int Datasoute = 0; powerup (); delay (5118); // Power-on-delay Powerup (); Delay (5118); // Delay Delay (5118); // Power Delay _cs = 1; _sclk = 0; m = 0xA0; _CS = 0; for (i = 0; I<16; i ++) {address = _IROR_(Address, 1); Datasoute = address<<1; _MOSI = CY; _SCLK = 0; _sclk = 1;} for (i = 0; I<8; i ++) { m = _cror_(m, 1); j = m<<1; _Mosi = cy; _sclk = 0; _sclk = 1;} _cs = 1; _sclk = 0; m = 0xB0; _CS = 0; for (i = 0; I<8; i ++) {m = _code_(m, 1); j = m<<1; _Mosi = cy; _sclk = 0; _sclk = 1;} _cs = 1; p0 = 0xff; datasoute = 0; while (_int == 1) // Store address wrap flag {if (_RAC) {delay (20000); Datasoute ++;} // Record the number of rows accounting for this second record (how much this is this recording) /// At this point, you should add your own procedure, which is the recording exit program //}} // while end; void audio {Unsigned CHAR I, M, J; unsigned int Datasoute Powerup (); _cs = 1; _sclk = 0; _CS = 0; m = 0xE0; for (i = 0; I<16; i ++) {address = _iror_(address, 1); datasoute = address.1881 .. 1881.1; _Mosi = cy; _sclk = 1;} for (i = 0; i<8; i ++) {m = _cror_(m, 1); j = m<<1; _sclk = 0; _MOSI = cy; _SCLK = 1;} _cs = 1; _sclk = 0; m = 0xf0; _cs = 0; for (i = 0; I<8; i ++) {m = _cror_(m, 1); j = m <<1; _sclk = 0; _MOSI = cy; _sclk = 1;} _cs = 1; p0 = 0xff; while (_int == 1) {} // while end;} main () {record4004 (0) Audioout (0); while (1);}, technology area World premiere! Rohm develops high-quality audio IC "BD372xx series" Home Wireless Router Practical Guide I understand audio circuit diagram and working principle Talking about the "Sudok Curve" in the sound Snapers M0PRO Speaker Deep Disassembly Report: Internal and External

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