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grigorig / stcgal

Open Source STC MCU ISP flash tool
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Board recommendation? #30

Closed larsbrinkhoff closed 7 years ago

larsbrinkhoff commented 7 years ago

Hello,

Can you recommend an STC MCU development board, which is easy to program using stcgal? I'd prefer a USB interface if possible.

I searched for "STC15W4" on eBay. There were some interesting results, but the boards are equipped with ESP8266 parts, so I'm not sure if they're appropriate for 8051 programming.

Thanks.

nekromant commented 7 years ago

ESP8266 are NOT STC, they have a different MCU and are NOT covered by any of these tools.

larsbrinkhoff commented 7 years ago

I understand that. This is really just tangential to the request for advice. But I looked it up in more detail. The boards are called "DC 5V IAP15W4K58S4 STC15W4K56S4 SCM DC5V ESP8266 Socket Development Board". The IAP15W4K58S4 is an STC part number for an 8051 device. It seems there is an STC MCU on board, but I'm not sure what its purpose is.

Anyway, I'm just looking for advice on a nice STC board.

zerog2k commented 7 years ago

Lars, I have seen several of these boards, which combine some sort of STC host processor, along with an ESP8266 module - however the ESP is usually supplied with AT firmware, and all of the board peripherals (relay, leds, DHT, etc) are wired up to the host processor, the STC. In these cases, generally, the ESP is just for "wifi" access. Sadly, many of these boards are not well documented, e.g. schematics - at least not in English.

Here is an older example: https://esp8266hints.wordpress.com/2015/10/25/nuther-new-something-in-town-you-can-safely-ignore-it/ (This would need also a cheap usb to uart adapter). Sadly, the author doesn't take any interest in using the STC onboard.

edit: I assume you are familiar with the variations of the STC15, which widely available on aliexpress and the like. This datasheet covers several lines of these (http://www.stcmicro.com/datasheet/STC15F2K60S2-en2.pdf)

larsbrinkhoff commented 7 years ago

Thank you @zerog2k.

Actually, I'm not familiary with any STC device. I just want an 8051 which is easy to program through USB.

nekromant commented 7 years ago

Hm... ESP8266 Black board T5 looks like just what I needed for a little project, just ordered one. ;)

zerog2k commented 7 years ago

@nekromant fyi in case you were not aware, that blackboard t5 has already had the code reworked which makes a great starting point... https://github.com/darrylb123/blackboard-STC15

nekromant commented 7 years ago

@zerog2k thanks, that will prove useful. I think of using this board to add tcp and serial transport to my embedded rpc library: https://github.com/nekromant/aura

larsbrinkhoff commented 7 years ago

Thanks all!