StLinkP8 is android application for updating firmware of Stm8 CPU.
For updating your firmware you need android smartphone with installed application StLinkP8 and programmer St-Link.
St-Link can be as original from STMicroelectronics such and its popular and more cheap chinese clone
Firmware must be one of the next supported file format
- Intel Hex
- Raw binary
For convertion files from Motorola S-Record format to Intel Hex format you can use my simple utility for Windows OS - HexFormatConverter