[问答]

STM8S无法与ROM Bootloader通信

问答对人有帮助，内容完整，我也想知道答案 0 嗨，我们正在尝试编程STM8S-Discovery，配备STM8S105x6 微控制器，使用本机引导加载程序（通过USART1引脚）。我们通过移除R13-R14电阻来消除板载ST-Link。我们正在使用USB-TTL（5伏）转换器，我们采用了RX， TX，GND和VCC信号并将它们连接到CN1连接器发现板。我们正在使用Flash Loader演示软件PC，但是我们仍然无法在STM8S上进行通信和编程板。我们还编写了正确的选项字节以启用引导加载程序（通过STVP软件，请参见附图），但没有任何成功。按下“下一个”后，电路板是否保持复位状态软件PC的按钮？你能说得对吗？程序通过USART程序（使用ROM引导程序）？先谢谢你，最好的祝福。注意：在来自STVP（读取选项字节）的附加图像中，我注意到数据表中写入的引导加载程序选项字节值il 0x55而不是0x55AA ..它是否正确？ #bootloader＃option-bytes #stm8 以上来自于谷歌翻译以下为原文 Hi, we are trying to program a STM8S-Discovery, fitted with a STM8S105x6 microcontroller, using the native bootloader (via USART1 pins). We disconnetted the onboard ST-Link by removing R13-R14 resistor. We are using a USB-TTL (5 Volt) converter, from wich we took the RX, TX, GND and VCC signals and connected them to the CN1 connector of the Discovery board. We are using the Flash Loader Demo software PC, but we are still not able to communicate and program the STM8S on the board. We also wrote the proper option byte to enable the bootloader (via STVP software, please see the attached image), but without any success. Has the board to stay in reset state after the pressing of the ''next'' button of the software PC? Could you tell us please the right procedure to follow to program via USART (using ROM bootloader)? Thank you in advance, best regards. Note: in the attached image from STVP (read option byte), I noticed that the bootloader option byte value il 0x55 instead of 0x55AA as written in the datasheet.. is it correct anyway? #bootloader #option-bytes #stm8 0
2018-11-5 10:15:38　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 41 个回答。邀请回答 chm5 该类别下有 39 个回答。邀请回答 hgimtk 该类别下有 33 个回答。邀请回答 HengDu 该类别下有 30 个回答。邀请回答 hwp0415229 该类别下有 28 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答可口可甜该类别下有 26 个回答。邀请回答 kingnet6688 该类别下有 26 个回答。邀请回答颜刚YanG 该类别下有 26 个回答。邀请回答 zyh34997 该类别下有 25 个回答。邀请回答柱子图宁该类别下有 25 个回答。邀请回答 kingnet9999 该类别下有 25 个回答。邀请回答 jenny042 该类别下有 25 个回答。邀请回答 andyfly7 该类别下有 25 个回答。邀请回答麻酱该类别下有 25 个回答。邀请回答 gXDhn 该类别下有 24 个回答。邀请回答 jiangwenwen 该类别下有 24 个回答。邀请回答哼小曲该类别下有 24 个回答。邀请回答云汉007 该类别下有 24 个回答。邀请回答举报欧建杭相关推荐 • STM8s悬挂 1736 • Dubts如何重置stm8s 1829 • STM8S 串口接收问题进入接收中断但 UART1_DR确没有数据进入 12803 • 没找到STM8S库中的ABS（X）功能 2359 • stm8s如何实现us精确延时？ 292 • STM8S串口下载过程是怎样的？ 981 • 无法与STM8S105K6中的内置引导加载程序通信 1008 • 如何在STM8S上停止HALT模式下的IWDG 3138 • stm8s发现USB设备无法识别 2075 • 请问怎么使用stm8s制作i2c iap？ 1235 1个回答

答案对人有帮助，有参考价值 0 嗨安德里亚，因为我不确切知道您的配置，所以此描述将遵循我的方式。硬件：首先，我将一个上拉电阻（47k）带到μC的Tx引脚。即，当以μC进行复位时，将接口（USB转换器）的Rx端口拉至空闲状态（高电平）。否则引脚悬空，可能会降至低电平状态并向Flash Loader发送错误信息。 1.将接口连接到μC并启动Flash Loader软件。 2.在窗口中，您可以选择COM接口，然后使用USB转换器。对于奇偶校验和回声我选择了奇偶校验无和回声模式，尽管Flash加载器演示器的用户手册（UM0462）显示了其他值。找出最好的方法。 3.重置μC。！从现在开始，严格按照时间安排： 4.在μC上释放复位后，按下'不会超过一秒的时间 ñ PC上Flash Loader窗口的ext'按钮。这将启动Flash Loader（PC）和引导加载程序（μC）之间的链接过程。注意：在第二秒之后，μC将进入正常复位程序并从闪存启动正常程序。此后，引导加载程序被取消激活，您无法再次启动链接过程 - 直到重置μC。希望你现在得到目标窗口：选择目标。如果是 - 你成功了： Ø ），如果没有 - o（尝试其他任何事情。 5.按照UM0462并为STM8S105x6选择目标STM8_32k。 6.依此类推...... 希望，这可以帮到你。最好的祝福， WoRo 以上来自于谷歌翻译以下为原文 Hi Andrea, as I don’t know exactly about your configuration, this description will follow the way I did it. Hardware: First I brought a pullup resistor (47k) to the Tx pin of the µC. That is to pull the Rx port of the interface (USB-converter) to idle state (high) when acting the reset at µC. Otherwise the pin is floating, it may fall to low state and send wrong information to the Flash Loader. 1. Connect the interface to the µC and start the Flash Loader software. 2. In the window, where you can select the COM interface, you take the one of your USB-converter. For parity and echo I selected Parity None and Echo Mode although the User Manual of the Flash Loader Demonstrator (UM0462) shows other values. Find out the best way. 3. Reset the µC. !!! From now on it is strictly recommended to following the timing: 4. AFTER you release the Reset on µC, you will have no more than ONE SECOND time to press the ‘ N ext’ button of the Flash Loader window on your PC. This will start the link procedure between Flash Loader (PC) and bootloader (µC). Notice: After the very second the µC will enter the normal reset procedure and start the normal program from the flash memory. Henceforth the bootloader is deactivated and you can’t initiate the link procedure again - until you reset the µC. Hopefully you get now the window Target: Select target. If yes - you succeeded : o ), if no - o( try anything else. 5. You follow the UM0462 and select the target STM8_32k for your STM8S105x6. 6. and so on … Hope, this could help you. Best Regards, WoRo

2018-11-5 10:25:16 评论举报陈丽