Jay Cheng goog
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| char *strtok(char *str, const char *delimiters) | |
| { | |
| char *token = NULL; | |
| static char *begin = NULL; | |
| if(str != NULL) | |
| { | |
| begin = str; | |
| } | |
| else | |
| { |
goog
/ gist:222020c4d46e751f591559f3f3ff06e0
Created
July 18, 2019 11:21
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| /** | |
| ****************************************************************************** | |
| * @file Project/main.c | |
| * @author MCD Application Team | |
| * @version V2.3.0 | |
| * @date 16-June-2017 | |
| * @brief Main program body | |
| ****************************************************************************** | |
| * @attention | |
| * |
goog
/ gist:10950e57bfaf5489a3572ce87a971fe9
Created
May 17, 2019 09:48
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| /** | |
| * @file | |
| * | |
| * @ingroup arm | |
| * | |
| * @brief RTC driver for STM32F4 SoC. | |
| * | |
| */ | |
| /* |
goog
/ gist:29b1a18fb99f308ab8887daa0b731f08
Created
April 22, 2019 10:53
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| void rtc_init(int minor) | |
| { | |
| printk("rtc \n"); | |
| volatile uint32_t *RCC_APB1ENR = 0x40023840; | |
| volatile uint32_t *RCC_BDCR = 0x40023870; | |
| uint16_t retry = 0X1FFF; | |
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| uint32_t *USART2_SR = (uint32_t *)0x40004400; | |
| uint32_t *USART2_DR = (uint32_t *)0x40004404; | |
| rtems_isr USART2_handler(rtems_vector_number vector) | |
| { | |
| uint32_t temp = temp; | |
| if((*USART2_SR) & (1<<5)) | |
| { | |
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| stm32f4_gpio_config io_key2 = | |
| { | |
| .fields={ | |
| .pin_first = STM32F4_GPIO_PIN(4, 2), | |
| .pin_last = STM32F4_GPIO_PIN(4, 2), | |
| .mode = STM32F4_GPIO_MODE_INPUT, | |
| //.otype = STM32F4_GPIO_OTYPE_PUSH_PULL, | |
| .ospeed = STM32F4_GPIO_OSPEED_2_MHZ, | |
| .pupd = STM32F4_GPIO_PULL_UP, | |
| .output = 0, |
goog
/ gist:36cab05f82aba548a432d616fc3c2cbe
Created
April 10, 2019 10:00
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| ``` | |
| cheng@ubuntu:~/rtems-4.11.3/testsuites/samples/hello$ tree | |
| . | |
| ├── hello.doc | |
| ├── hello.scn | |
| ├── init__0402.c | |
| ├── init0403.c | |
| ├── init.c | |
| ├── init.c_0001 | |
| ├── init.c_0002 |
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| #include "keymap_common.h" | |
| const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { | |
| /* 0: numpad */ | |
| KEYMAP( NLCK, SLASH, PAST, PMNS, \ | |
| P7, P8, P9, PENT, \ | |
| P4, P5, P6, \ | |
| P1, P2, P3, \ | |
| P0, PDOT, PPLS), |
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| cheng@ada ~ $ cat /etc/rc.local | |
| #!/bin/sh -e | |
| # | |
| # rc.local | |
| # | |
| # This script is executed at the end of each multiuser runlevel. | |
| # Make sure that the script will "exit 0" on success or any other | |
| # value on error. | |
| # | |
| # In order to enable or disable this script just change the execution |
goog
/ iconv_practice.cpp
Last active
September 11, 2015 10:24
— forked from suapapa/iconv_practice.cpp
iconv utf8 to ucs2 example
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| #include <stdio.h> | |
| #include <iconv.h> | |
| #include <string.h> | |
| #include <errno.h> | |
| #include <stdint.h> | |
| int conv_utf8_to_ucs2(const char* src, size_t len) | |
| { | |
| iconv_t cb = iconv_open("UTF-16", "UTF-8"); | |
| if (cb == (iconv_t)(-1)) |
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