@@ -39,13 +39,13 @@ char* itoa(int i, char b[]){
int shifter = i;
do{ //Move to where representation ends
++p;
shifter = shifter/10;
}while(shifter);
*p = '\0';
do{ //Move back, inserting digits as u go
do{ //Move back, inserting digits as you go
*--p = digit[i%10];
i = i/10;
}while(i);
return b;
}
@@ -96,21 +96,12 @@ int main(void)
uint8_t toggle = 0;
int16_t temp = -231;
while(1)
{
temp = SPI_I2S_ReceiveData(SPI2);
//ssd1306_DrawString("Temp: ", 1, 40);
char tempstr[5];
itoa(temp, tempstr);
ssd1306_DrawString("Temp: ", 3, 40);
//char test = temp + 0x30;
//sprintf(tempstr, "%d", test);
ssd1306_DrawString(tempstr, 3, 70);
//ssd1306_block_write();
// Process sensor inputs [TODO: 5hz?]
process();
// Run state machine [TODO: 50hz?]
@@ -147,28 +138,41 @@ int32_t p = 1;
int32_t i = 1;
int32_t d = 1;
// Process things
void process()
// Read MAX temp sensor
// Assert CS
GPIO_ResetBits(MAX_CS);
Delay(50);
// This may not clock at all... might need to send 16 bits first
uint8_t retval = 0;//SPI_I2S_ReceiveData(SPI2);
SPI_I2S_SendData(SPI2, 0xAA); // send dummy data
uint16_t retval = SPI_I2S_ReceiveData(SPI2);
char tempstr[9];
itoa(retval, tempstr);
ssd1306_DrawString("Temp: ", 1, 40);
ssd1306_DrawString(tempstr, 1, 70);
// Deassert CS
GPIO_SetBits(MAX_CS);
if((!retval || (temp & 0x2) != 0))
return; // Comms error - this is happening right now
ssd1306_DrawString("!TempCOMMS", 3, 35);
//return; // Comms error - this is happening right now
if((temp & 0x4)!= 0)
return; // Open thermocouple
else if((temp & 0x4)!= 0)
ssd1306_DrawString("!OpenThermocouple", 3, 40);
//return; // Open thermocouple
temp = (temp & 0x7FF8) >> 5;
// TODO: Add calibration offset (linear)
@@ -389,28 +393,28 @@ void init_spi(void)
SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1, ENABLE); /* Enable the SPI */
// MAX IC
//SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b; // Andysworkshop
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; // From andysworkshop
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; // same
// Can be used for CS... SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
//SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
//SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; // From andysworkshop
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; // same
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_128;
SPI_Init(SPI2, &SPI_InitStructure);
SPI_Cmd(SPI2, ENABLE); /* Enable the SPI */
void init_gpio(void) {
@@ -522,37 +526,13 @@ void init_gpio(void) {
/*Enable or disable the AHB peripheral clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
/*Configure GPIO pin : PA */
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_11|GPIO_Pin_12;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_400KHz;
GPIO_Init(GPIOA, &GPIO_InitStruct);
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{}
#endif
// vim:softtabstop=4 shiftwidth=4 expandtab
Status change: