Posted on April 25, 2006 at 06:27Hi. I have a ST7 and ST7538 system setup. The ST7538 is setup to default and the data is distributed through the sci on the ST7. I have seen sometimes, that some of the variables I distribute from one system to anoth...
Posted on February 15, 2006 at 10:49Hi. I have a problem with the watchdog on my ST7538. The datasheet says the minimum Watchdog time (Twd) is 3.5ms (it was 500ns on ST7537). I have made a 6ms watchdog signal, but the RSTO keeps going low. What's wr...
Posted on February 03, 2006 at 09:57Hi again. I would just inform you all that it now works. It seems that the fault was the supply. The supply on the PCB is a 5V. The 5V is then made to a 10V with a step-up converter, and this converter sometimes m...
Posted on February 03, 2006 at 07:26Hi again. I have made a read out of the control register, and the control register looks fine. I is set to default, and nothing is wrong with the register. REG_DATA is low all the time, and the MCLK is 4MHz. BUT, ...
Posted on February 01, 2006 at 11:37 Hi all ST7538 guru's. I have a problem with a ST7538 that is programming itself. The problem is, that the first time I power it up, it somehow programs itself with some of the data on the TxD pin. The ...
