1. 89C52 can be programmed | Microcontroller › 8051 › doubt on programmer? › 1. 89C52 can be programmed July 8, 2012 at 12:08 am #8220 AmrithParticipant 1. 89C52 can be programmed using SPI as well as UART. 2. For loop back test you need to sort Tx & Rx lines
