Search found 2 matches
- Tue Apr 23, 2024 12:52 pm
- Forum: Hardware
- Topic: How to simulate JTAG burning the slave chip ESP32 through the SPI module software of the main control chip?
- Replies: 0
- Views: 1090
How to simulate JTAG burning the slave chip ESP32 through the SPI module software of the main control chip?
Hi, The main control chip I am using is XMC4500F144, and the slave chip is ESP32_WROOM32U. The slave chip is only connected to the main chip with four pins, IO15, IO14, IO13, and IO12, for SPI communication. Except for 3.3V and ground, all other pins are not wired and are in a floating state. May I...
- Tue Apr 23, 2024 12:46 pm
- Forum: ESP Mesh 中文讨论版
- Topic: 如何通过主控芯片的SPI模块软件模拟JTAG烧录从机芯片ESP32?
- Replies: 0
- Views: 2826
如何通过主控芯片的SPI模块软件模拟JTAG烧录从机芯片ESP32?
您好， 我使用的主控芯片为XMC4500F144，从机芯片为ESP32_WROOM_32U，从机芯片仅与主芯片连接了IO15、IO14、IO13、IO12这四个引脚用于SPI通信。除了3.3V和地，其余引脚均未接线，为浮空状态。请问ESP32为从机的情况下，EN引脚未接线为浮空状态，该芯片能否正常工作？我将如何验证ESP32芯片内是否已经被烧录了代码？如果ESP32内未被烧录了程序，如何通过IO15~IO12这四个引脚对ESP32芯片进行烧录？能否提供一些类似情况的解决方案或是示例代码？ ESP32接线图如附件1所示。 谢谢。 ESP32_WROOM_U32 1.jpg