/**
* @brief Writes a Byte to a given register into the audio codec through the
control interface (I2C)
* @param RegisterAddr: The address (location) of the register to be written.
* @param RegisterValue: the Byte value to be written into destination register.
* @retval 0 if correct communication, else wrong communication
*/
static int32_t Codec_WriteRegister(uint8_t RegisterAddr, uint8_t RegisterValue)
{
uint32_t result = 0;
/*!< While the bus is busy */
while(I2C_GetFlagStatus(CODEC_I2C, I2C_FLAG_BUSY));
/* Start the config sequence */
I2C_GenerateSTART(CODEC_I2C, ENABLE);
/* Test on EV5 and clear it */
while (!I2C_CheckEvent(CODEC_I2C, I2C_EVENT_MASTER_MODE_SELECT));
/* Transmit the slave address and enable writing operation */
I2C_Send7bitAddress(CODEC_I2C, CODEC_ADDRESS, I2C_Direction_Transmitter);
/* Test on EV6 and clear it */
while (!I2C_CheckEvent(CODEC_I2C, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
/* Transmit the first address for write operation */
I2C_SendData(CODEC_I2C, RegisterAddr);
/* Test on EV8 and clear it */
while (!I2C_CheckEvent(CODEC_I2C, I2C_EVENT_MASTER_BYTE_TRANSMITTING));
/* Prepare the register value to be sent */
I2C_SendData(CODEC_I2C, RegisterValue);
/*!< Wait till all data have been physically transferred on the bus */
while(!I2C_GetFlagStatus(CODEC_I2C, I2C_FLAG_BTF));
/* End the configuration sequence */
I2C_GenerateSTOP(CODEC_I2C, ENABLE);
#ifdef VERIFY_WRITTENDATA
/* Verify that the data has been correctly written */
result = (Codec_ReadRegister(RegisterAddr) == RegisterValue)? 0:1;
#endif /* VERIFY_WRITTENDATA */
/* Return the verifying value: 0 (Passed) or 1 (Failed) */
return result;
}
void Codec_WriteRegister(uint8_t RegisterAddr, uint8_t RegisterValue) //dodane ale zmodyfikowane, nie zwraca info o bledzie
{
/*!< While the bus is busy */
CODECTimeout = CODEC_LONG_TIMEOUT;
while(I2C_GetFlagStatus(CODEC_I2C, I2C_FLAG_BUSY))
{
if((CODECTimeout--) == 0) return Codec_TIMEOUT_UserCallback();
}
/* Start the config sequence */
I2C_GenerateSTART(CODEC_I2C, ENABLE);
/* Test on EV5 and clear it */
CODECTimeout = CODEC_FLAG_TIMEOUT;
while (!I2C_CheckEvent(CODEC_I2C, I2C_EVENT_MASTER_MODE_SELECT))
{
if((CODECTimeout--) == 0) return Codec_TIMEOUT_UserCallback();
}
/* Transmit the slave address and enable writing operation */
I2C_Send7bitAddress(CODEC_I2C, CODEC_I2C_ADDRESS, I2C_Direction_Transmitter);
/* Test on EV6 and clear it */
CODECTimeout = CODEC_FLAG_TIMEOUT;
while (!I2C_CheckEvent(CODEC_I2C, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
{
if((CODECTimeout--) == 0) return Codec_TIMEOUT_UserCallback();
}
/* Transmit the first address for write operation */
I2C_SendData(CODEC_I2C, RegisterAddr);
/* Test on EV8 and clear it */
CODECTimeout = CODEC_FLAG_TIMEOUT;
while (!I2C_CheckEvent(CODEC_I2C, I2C_EVENT_MASTER_BYTE_TRANSMITTING))
{
if((CODECTimeout--) == 0) return Codec_TIMEOUT_UserCallback();
}
/* Prepare the register value to be sent */
I2C_SendData(CODEC_I2C, RegisterValue);
/*!< Wait till all data have been physically transferred on the bus */
CODECTimeout = CODEC_LONG_TIMEOUT;
while(!I2C_GetFlagStatus(CODEC_I2C, I2C_FLAG_BTF))
{
if((CODECTimeout--) == 0) Codec_TIMEOUT_UserCallback();
}
/* End the configuration sequence */
I2C_GenerateSTOP(CODEC_I2C, ENABLE);
#ifdef VERIFY_WRITTENDATA
/* Verify that the data has been correctly written */
result = (Codec_ReadRegister(RegisterAddr) == RegisterValue)? 0:1;
#endif /* VERIFY_WRITTENDATA */
/* Return the verifying value: 0 (Passed) or 1 (Failed) */
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
// int c;
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.c file
*/
SystemInit();
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(SystemCoreClock / SYSTICK_FREQUENCY_HZ);
#ifdef TRACEUART
TRACEUART_Configuration();
#endif //TRACEUART
UART_Configuration();
LED_Init();
/* Output a message on Hyperterminal using printf function */
printf("\n\r\n\r");
printf("*** LATTICE FW LOADER V1.00 Build by phalt on ("__DATE__ "-" __TIME__ ")\n\r");
printf("*** LATTICE FW LOADER V1.00 Rebooting ...\n\r");
/*
* wait for a keystroke (or a button press if you want.)
*/
// printf("\n\rPress Return to start, any other key To Enter the Console ...\n\r");
// c = awaitkey(DEFAULT_BOOT_DELAY);
if(1) //(((c != '\r') && (c != '\n') && (c != '\0')))
{
Delay(500);
GPIO_ResetBits(BLINK_PORT, (0xF << LED1));
// traceprintf("\rtrace start OK\n\r");
// Codec_GPIO_Init();
// Delay(1);
// /* Reset the Codec Registers */
// Codec_Reset();
// Delay(1);
// /* Initialize the Control interface of the Audio Codec */
// Codec_CtrlInterface_Init();
// Delay(1);
if(1)
{
GPIO_SetBits(BLINK_PORT, (0xF << LED1));
// WavePlayBack(AUDIOFREQ, 1);
WavePlayerInit(AUDIOFREQ);
GPIO_ResetBits(BLINK_PORT, (0xF << LED1));
}
while(1) //eugene loop
{
// Codec_CtrlInterface_Init();
GPIO_SetBits(BLINK_PORT, (0x1 << LED1));
// Codec_Write();
Codec_ReadRegister(0x00); //test read of codec
GPIO_ResetBits(BLINK_PORT, (0x1 << LED1));
Delay(1000);
}
if(1) //test
{
init_builtin_cmds();
serial_term();
}
}
printf("*** JUMP to Application now ...\n\r");
run_app(0x08000000);
/* Infinite loop */
while (1);
}
