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Remove commented code
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dbb2019b9a
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@ -14,7 +14,6 @@
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#include "py/py_file.h"
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#include "core_cm4.h"
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#include "usbdbg.h"
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#include "stm32f4xx_hal_rcc.h"
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#define USB_TX_BUF_SIZE (64)
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static int xfer_bytes;
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@ -191,39 +190,10 @@ void usbdbg_control(void *buffer, uint8_t request, uint16_t length)
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NVIC_SystemReset();
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break;
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case USBDBG_BOOT:
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/* http://goo.gl/VcKqst
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* disable IRQ, reset USART1 and RCC before setting MSP/PC.
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* Disable all peripheral clocks
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* Disable used PLL
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* Disable interrupts
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* Clear pending interrupts
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*/
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/*
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__set_PRIMASK(1); // disable interrupts
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HAL_RCC_DeInit(); // reset RCC
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HAL_USART_DeInit( ); // reset USART1
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SysTick->CTRL = 0; // reset the SysTick timer
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SysTick->LOAD = 0;
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SysTick->VAL = 0;
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//__set_MSP(0x20001000); // set main SP to its default
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asm volatile(
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"ldr r0, =0x40013800\n\t" // SYSCFG_MEMRMP
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"ldr r1, =0x00000001\n\t" // remap ROM at zero
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"str r1, [r0, #0]\n\t"
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"ldr r0, =0x1fff000\n\t" // load ROM base
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"ldr sp,[r0, #0]\n\t" // assign main stack pointer
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"ldr r0,[r0, #4]\n\t" // load bootloader address
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"bx r0\n\t"
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);
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// STM32F40xxx e.g., 405, 407 : 0x1FFF77DE
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// STM32F429xx : 0x1FFF76DE
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*/
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// set magic flag => reset handler will jump into boot loader
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*((uint32_t *)0x20002000) = 0xDEADBEEF;
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NVIC_SystemReset();
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while (1);
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break;
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case USBDBG_BOOT:
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*((uint32_t *)0x20002000) = 0xDEADBEEF;
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NVIC_SystemReset();
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break;
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default: /* error */
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cmd = USBDBG_NONE;
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