136 lines
4.2 KiB
C
136 lines
4.2 KiB
C
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#include "led.h"
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#include "uart_log.h"
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#include "ltimer.h"
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#include "qspi_flash.h"
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#include "stdio.h"
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void system_init(void)
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{
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/* Enable I-Cache */
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SCB_EnableICache();
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/* Enable D-Cache */
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SCB_EnableDCache();
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/* STM32H7xx HAL library initialization:
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- Configure the Systick to generate an interrupt each 1 msec
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/*!< Supply configuration update enable */
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY); /* PWR set to LDO for the STM32H750B-DISCO board */
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/* The voltage scaling allows optimizing the power consumption when the device is
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clocked below the maximum system frequency, to update the voltage scaling value
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regarding system frequency refer to product datasheet. */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
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RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 5;
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RCC_OscInitStruct.PLL.PLLN = 160;
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RCC_OscInitStruct.PLL.PLLFRACN = 0;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLQ = 4;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK) {
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while(1);
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}
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/* Select PLL as system clock source and configure bus clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 | \
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RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
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if(ret != HAL_OK) {
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while(1);
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}
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led_init(LED_PIN);
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uart_log_init();
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ltimer_init();
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qspi_flash_init(3); /* 200MHz / (3 + 1) = 50MHz */
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}
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void led_blink(void)
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{
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led_on(LED_PIN);
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led_off(LED_PIN);
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}
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uint8_t data[256];
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int main(void)
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{
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uint32_t ret;
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system_init();
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printf("Run start ...\r\n");
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printf("SystemCoreClock = %ld\r\n", SystemCoreClock);
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printf("SystemD2Clock = %ld\r\n", SystemD2Clock);
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ret = qspi_flash_erase_4kbytes(0);
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if (ret) {
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printf("qspi_flash_erase_4k error: 0x%08lX\r\n", ret);
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} else {
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printf("qspi_flash_erase_4k ok\r\n");
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}
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for (uint32_t i = 0; i < sizeof(data); i++) {
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data[i] = (uint8_t)(i & 0xFF);
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}
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ret = qspi_flash_write(0, data, sizeof(data));
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if (ret) {
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printf("qspi_flash_write error: 0x%08lX\r\n", ret);
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} else {
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printf("qspi_flash_write ok\r\n");
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}
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while (1) {
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uint64_t ms;
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ms = ltimer_get_ms();
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printf("Hello World, ms = %llu, tick = %ld\r\n", ms, HAL_GetTick());
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ret = qspi_flash_read(0, data, 30);
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if (ret) {
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printf("qspi_flash_read error: 0x%08lX\r\n", ret);
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} else {
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printf("qspi_flash_read ok\r\n");
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for (uint32_t i = 0; i < sizeof(data); i++) {
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if (i % 16 == 0) {
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printf("\r\n");
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}
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printf("%02X ", data[i]);
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}
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}
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led_blink();
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ltimer_delay_ms(1000);
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}
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return 0;
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}
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