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https://github.com/IcedRooibos/py32f0-template.git
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94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
// This example was tested with 'PY32F003W16S6TU SOP16' chip
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//
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// It uses a modded version of the https://github.com/bob-01/STM32-SI5351/tree/master
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// library.
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#include "py32f0xx_bsp_printf.h"
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#include "si5351.h"
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#define I2C_ADDRESS 0xC0 // 0x60
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I2C_HandleTypeDef hi2c1;
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void APP_ErrorHandler(void);
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static void APP_I2C_Config(void);
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void I2C_Scan() {
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printf("Scanning I2C bus...\r\n");
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HAL_StatusTypeDef res;
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int found = 0;
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for (uint16_t i = 0; i < 128; i++) {
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res = HAL_I2C_IsDeviceReady(&hi2c1, i << 1, 1, 10);
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if (res == HAL_OK) {
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char msg[64];
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found = 1;
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snprintf(msg, sizeof(msg), "Found at 0x%02X\n", i);
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printf(msg);
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}
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}
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if (!found)
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printf("An I2C device was not found - check connections!\n");
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}
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int main(void)
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{
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HAL_Init();
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// PA2 ------> USART2_TX
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BSP_USART_Config();
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printf("SystemClk:%ld\r\n", SystemCoreClock);
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APP_I2C_Config();
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// HAL_Delay(5000);
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I2C_Scan();
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int32_t si5351_FREQ_CORR = 0;
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uint8_t si5351_XTAL = 26; // I am using a 26 MHz TCXO, change according to your Si5351 setup
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si5351_init(&hi2c1, SI5351_BUS_BASE_ADDR, SI5351_CRYSTAL_LOAD_0PF, si5351_XTAL*1000000, si5351_FREQ_CORR);
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si5351_drive_strength(SI5351_CLK0, SI5351_DRIVE_8MA);
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si5351_drive_strength(SI5351_CLK1, SI5351_DRIVE_8MA);
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si5351_drive_strength(SI5351_CLK2, SI5351_DRIVE_8MA);
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si5351_set_freq(28074000*100ULL, SI5351_CLK0); // FT8 frequency on the 10m band
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while(1) {
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HAL_Delay(10);
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}
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}
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static void APP_I2C_Config(void)
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{
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hi2c1.Instance = I2C;
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hi2c1.Init.ClockSpeed = 100000; // 100KHz ~ 400KHz
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hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
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hi2c1.Init.OwnAddress1 = 0;
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hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
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hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
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if (HAL_I2C_Init(&hi2c1) != HAL_OK)
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{
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APP_ErrorHandler();
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}
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}
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void APP_ErrorHandler(void)
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{
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while (1);
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Export assert error source and line number
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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while (1);
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}
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#endif /* USE_FULL_ASSERT */
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