therm Changeset - facb8c86942c · protofusion repositories

Changeset - facb8c86942c

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cortex-f0

0 2 0

Ethan Zonca - 10 years ago 2015-01-25 15:50:38
ez@ethanzonca.com

Removed dead code, fixed SPI clock rate, removed unneeded delays

2 files changed with 1 insertions and 36 deletions:

main.c

spi.c

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main.c

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@@ @@ -155,34 +155,32 @@ void SystemClock_Config(void) @@
 // Read temperature and update global temp vars
 int32_t temp = 0;
 uint8_t temp_frac = 0;
 uint8_t state_resume = 0;
 void update_temp() {
     // Assert CS
     HAL_GPIO_WritePin(MAX_CS, 0);
     HAL_Delay(100);
     uint8_t rxdatah[1] = {0x00};
     uint8_t rxdatal[1] = {0x00};
     HAL_SPI_Receive(&hspi1, rxdatah, 1, 100);
     HAL_SPI_Receive(&hspi1, rxdatal, 1, 100);
     // Release CS
     HAL_Delay(1);
     HAL_GPIO_WritePin(MAX_CS, 1);
     // Assemble data array into one var
     uint16_t temp_pre = rxdatal[0] | (rxdatah[0]<<8);
     if(temp_pre & 0b0000000000000010) {
         ssd1306_clearscreen();
         ssd1306_DrawString("Fatal Error", 3, 35);
         HAL_Delay(100);
         state = STATE_TC_ERROR;
+    }
     else if(temp_pre & 0b0000000000000001 && !ignore_tc_error) {

spi.c

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@@ @@ -3,54 +3,21 @@ @@
 #include "stm32f0xx_hal_gpio_ex.h"
 extern SPI_HandleTypeDef hspi1;
 void init_spi()
+{
     hspi1.Instance = SPI1;
     hspi1.Init.Mode = SPI_MODE_MASTER;
     hspi1.Init.Direction = SPI_DIRECTION_2LINES;
     hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
     hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
     hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
     hspi1.Init.NSS = SPI_NSS_SOFT;
-    hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
+    hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
     hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
     hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
     hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
     hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLED;
     HAL_SPI_Init(&hspi1);
+}
     /* OLD:
         SPI_InitTypeDef  SPI_InitStructure;
     // OLED IC
     SPI_Cmd(SPI1, DISABLE);
     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_4;
     SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
     SPI_InitStructure.SPI_CRCPolynomial = 7;
     SPI_Init(SPI1, &SPI_InitStructure);
     SPI_Cmd(SPI1, ENABLE);
     // MAX IC
     SPI_Cmd(SPI2, DISABLE);
     SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
     SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
     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
     SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
     SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
     SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
     SPI_InitStructure.SPI_CRCPolynomial = 7;
     SPI_Init(SPI2, &SPI_InitStructure);
     SPI_Cmd(SPI2, ENABLE);
     */
 // vim:softtabstop=4 shiftwidth=4 expandtab

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