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Steven Dan
2025-12-11 09:43:42 +08:00
commit d8b2974133
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57
lib_i2s/examples/app_tdm_loopback_demo/src/XR-AUDIO-216-MC.xn Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<Network xmlns="http://www.xmos.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xmos.com http://www.xmos.com" ManuallySpecifiedRouting="true">
<Type>Board</Type>
<Name>xCORE-200 MC Audio</Name>
<Declarations>
<Declaration>tileref tile[2]</Declaration>
<Declaration>tileref usb_tile</Declaration>
</Declarations>
<Packages>
<Package id="0" Type="XS2-UEnA-512-FB236">
<Nodes>
<Node Id="0" InPackageId="0" Type="XS2-L16A-512" OscillatorSrc="1" SystemFrequency="500MHz">
<Boot>
<Source Location="bootFlash"/>
</Boot>
<Tile Number="0" Reference="tile[0]">
<Port Location="XS1_PORT_1B" Name="PORT_SQI_CS"/>
<Port Location="XS1_PORT_1C" Name="PORT_SQI_SCLK"/>
<Port Location="XS1_PORT_4B" Name="PORT_SQI_SIO"/>
</Tile>
<Tile Number="1" Reference="tile[1]"/>
</Node>
<Node Id="1" InPackageId="1" Type="periph:XS1-SU" Reference="usb_tile" Oscillator="24MHz">
</Node>
</Nodes>
<Links>
<Link Encoding="5wire">
<LinkEndpoint NodeId="0" Link="8" Delays="52clk,52clk"/>
<LinkEndpoint NodeId="1" Link="0" Delays="1clk,1clk"/>
</Link>
</Links>
</Package>
</Packages>
<Nodes>
<Node Id="2" Type="device:" RoutingId="0x8000">
<Service Id="0" Proto="xscope_host_data(chanend c);">
<Chanend Identifier="c" end="3"/>
</Service>
</Node>
</Nodes>
<Links>
<Link Encoding="2wire" Delays="4,4" Flags="XSCOPE">
<LinkEndpoint NodeId="0" Link="0"/>
<LinkEndpoint NodeId="2" Chanend="1"/>
</Link>
</Links>
<ExternalDevices>
<Device NodeId="0" Tile="0" Class="SQIFlash" Name="bootFlash" Type="S25FL116K" PageSize="256" SectorSize="4096" NumPages="8192">
<Attribute Name="PORT_SQI_CS" Value="PORT_SQI_CS"/>
<Attribute Name="PORT_SQI_SCLK" Value="PORT_SQI_SCLK"/>
<Attribute Name="PORT_SQI_SIO" Value="PORT_SQI_SIO"/>
</Device>
</ExternalDevices>
<JTAGChain>
<JTAGDevice NodeId="0"/>
</JTAGChain>
</Network>

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lib_i2s/examples/app_tdm_loopback_demo/src/main.xc Normal file
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// Copyright 2015-2022 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.
#include <xs1.h>
#include <print.h>
#include <i2s.h>
#include <i2c.h>
#include <gpio.h>
#include <platform.h>
/* Ports and clocks used by the application */
out buffered port:32 p_dout[4] = on tile[0]: {XS1_PORT_1M, XS1_PORT_1N,
XS1_PORT_1O, XS1_PORT_1P};
in buffered port:32 p_din[4] = on tile[0]: {XS1_PORT_1I, XS1_PORT_1J,
XS1_PORT_1K, XS1_PORT_1L};
out buffered port:32 p_fsync = on tile[0]: XS1_PORT_1G;
out port p_bclk = on tile[0]: XS1_PORT_1H;
in port p_mclk = on tile[0]: XS1_PORT_1F;
out port p_gpio = on tile[0]: XS1_PORT_8C;
port p_i2c = on tile[0]: XS1_PORT_4A;
port p_led1 = on tile[1]:XS1_PORT_4C;
port p_led2 = on tile[1]:XS1_PORT_4D;
clock clk1 = on tile[0]: XS1_CLKBLK_1;
//Address on I2C bus
#define CS5368_ADDR (0x4C)
//Register Addresess
#define CS5368_CHIP_REV (0x00)
#define CS5368_GCTL_MDE (0x01)
#define CS5368_OVFL_ST (0x02)
//Address on I2C bus
#define CS4384_ADDR (0x18)
//Register Addresess
#define CS4384_CHIP_REV (0x01)
#define CS4384_MODE_CTRL (0x02)
#define CS4384_PCM_CTRL (0x03)
#define CS4384_DSD_CTRL (0x04)
#define CS4384_FLT_CTRL (0x05)
#define CS4384_INV_CTRL (0x06)
#define CS4384_GRP_CTRL (0x07)
#define CS4384_RMP_MUTE (0x08)
#define CS4384_MUTE_CTRL (0x09)
#define CS4384_MIX_PR1 (0x0a)
#define CS4384_VOL_A1 (0x0b)
#define CS4384_VOL_B1 (0x0c)
#define CS4384_MIX_PR2 (0x0d)
#define CS4384_VOL_A2 (0x0e)
#define CS4384_VOL_B2 (0x0f)
#define CS4384_MIX_PR3 (0x10)
#define CS4384_VOL_A3 (0x11)
#define CS4384_VOL_B3 (0x12)
#define CS4384_MIX_PR4 (0x13)
#define CS4384_VOL_A4 (0x14)
#define CS4384_VOL_B4 (0x15)
#define CS4384_CM_MODE (0x16)
#define CS5368_CHIP_REV (0x00)
#define CS5368_GCTL_MDE (0x01)
#define CS5368_OVFL_ST (0x02)
#define CS5368_OVFL_MSK (0x03)
#define CS5368_HPF_CTRL (0x04)
#define CS5368_PWR_DN (0x06)
#define CS5368_MUTE_CTRL (0x08)
#define CS5368_SDO_EN (0x0a)
[[distributable]]
void tdm_loopback(server i2s_callback_if i2s,
client i2c_master_if i2c,
client output_gpio_if dac_reset,
client output_gpio_if adc_reset,
client output_gpio_if clock_select,
client output_gpio_if led)
{
int32_t samples[32];
int count = 0;
int led_val = 1;
led.output(led_val);
while (1) {
select {
case i2s.init(i2s_config_t &?i2s_config, tdm_config_t &?tdm_config):
tdm_config.offset = 0;
tdm_config.sync_len = 32;
tdm_config.channels_per_frame = 8;
/* Set CODEC in reset */
dac_reset.output(0);
adc_reset.output(0);
/* Select 48Khz family clock (24.576Mhz) */
clock_select.output(1);
/* Allow the clock to settle */
delay_milliseconds(2);
/* DAC out of reset */
dac_reset.output(1);
/* Mode Control 1 (Address: 0x02) */
/* bit[7] : Control Port Enable (CPEN) : Set to 1 for enable
* bit[6] : Freeze controls (FREEZE) : Set to 1 for freeze
* bit[5] : PCM/DSD Selection (DSD/PCM) : Set to 0 for PCM
* bit[4:1] : DAC Pair Disable (DACx_DIS) : All Dac Pairs enabled
* bit[0] : Power Down (PDN) : Powered down
*/
i2c.write_reg(CS4384_ADDR, CS4384_MODE_CTRL, 0b11000001);
uint8_t x;
i2c_regop_res_t result;
x = i2c.read_reg(CS4384_ADDR, CS4384_MODE_CTRL, result);
printbinln(x);
printintln(result);
//uint8_t data[1];
// i2c.read(CS4384_ADDR, data, 1, 1);
// printbinln(data[0]);
/* PCM Control (Address: 0x03) */
/* bit[7:4] : Digital Interface Format (DIF) : 0b1100 for TDM
* bit[3:2] : Reserved
* bit[1:0] : Functional Mode (FM) : 0x11 for auto-speed detect (32 to 200kHz)
*/
i2c.write_reg(CS4384_ADDR, CS4384_PCM_CTRL, 0b11000111);
x = i2c.read_reg(CS4384_ADDR, CS4384_PCM_CTRL, result);
printbinln(x);
// printintln(result);
// i2c.read(CS4384_ADDR, data, 1, 1);
// printbinln(data[0]);
/* Mode Control 1 (Address: 0x02) */
/* bit[7] : Control Port Enable (CPEN) : Set to 1 for enable
* bit[6] : Freeze controls (FREEZE) : Set to 0 for freeze
* bit[5] : PCM/DSD Selection (DSD/PCM) : Set to 0 for PCM
* bit[4:1] : DAC Pair Disable (DACx_DIS) : All Dac Pairs enabled
* bit[0] : Power Down (PDN) : Not powered down
*/
i2c.write_reg(CS4384_ADDR, CS4384_MODE_CTRL, 0b10000000);
x = i2c.read_reg(CS4384_ADDR, CS4384_MODE_CTRL, result);
printbinln(x);
// i2c.read(CS4384_ADDR, data, 1, 1);
// printbinln(data[0]);
/* ADC out of reset */
adc_reset.output(1);
unsigned adc_dif = 0x02; // TDM mode
unsigned adc_mode = 0x03; /* Slave mode all speeds */
/* Reg 0x01: (GCTL) Global Mode Control Register */
/* Bit[7]: CP-EN: Manages control-port mode
* Bit[6]: CLKMODE: Setting puts part in 384x mode
* Bit[5:4]: MDIV[1:0]: Set to 01 for /2
* Bit[3:2]: DIF[1:0]: Data Format: 0x01 for I2S, 0x02 for TDM
* Bit[1:0]: MODE[1:0]: Mode: 0x11 for slave mode
*/
i2c.write_reg(CS5368_ADDR, CS5368_GCTL_MDE, 0b10010000 | (adc_dif << 2) | adc_mode);
/* Reg 0x06: (PDN) Power Down Register */
/* Bit[7:6]: Reserved
* Bit[5]: PDN-BG: When set, this bit powers-own the bandgap reference
* Bit[4]: PDM-OSC: Controls power to internal oscillator core
* Bit[3:0]: PDN: When any bit is set all clocks going to that channel pair are turned off
*/
i2c.write_reg(CS5368_ADDR, CS5368_PWR_DN, 0b00000000);
break;
case i2s.restart_check() -> i2s_restart_t restart:
restart = I2S_NO_RESTART;
break;
case i2s.receive(size_t index, int32_t sample):
if (index == 0) {
count++;
if (count == 48000) {
led_val = 1-led_val;
//led.output(led_val);
count = 0;
}
}
samples[index] = sample;
break;
case i2s.send(size_t index) -> int32_t sample:
sample = samples[index];
break;
}
}
}
static char gpio_pin_map[3] =
{1, // dac reset
2, // adc reset
6 // clock select
};
int main() {
interface i2s_callback_if i_i2s;
interface i2c_master_if i_i2c[1];
interface output_gpio_if i_gpio[3];
interface output_gpio_if i_gpio_led[1];
par {
on tile[0]: {
configure_clock_src_divide(clk1, p_mclk, 1);
configure_port_clock_output(p_bclk, clk1);
tdm_master(i_i2s, p_fsync, p_dout, 4, p_din, 4, clk1);
}
on tile[0]: [[distribute]]
tdm_loopback(i_i2s, i_i2c[0], i_gpio[0], i_gpio[1], i_gpio[2],
i_gpio_led[0]);
on tile[0]: i2c_master_single_port(i_i2c, 1, p_i2c, 10, 0, 1, 0);
on tile[0]: output_gpio(i_gpio, 3, p_gpio, gpio_pin_map);
on tile[0]: par(int i=0;i<7;i++) while(1);
on tile[1]: {p_led2 <: 0xf;output_gpio(i_gpio_led, 1, p_led1, null);}
}
return 0;
}