From 2a3d3624be53a3d172465829ea92c824825ea120 Mon Sep 17 00:00:00 2001 From: Kevin Redon Date: Sun, 18 Dec 2011 08:35:20 +0100 Subject: Make sure we don't forward power _and_ supply SIM power at the same time The FPF2005 has no reverse voltage blocker, this is why the 3.3V from the LDO flows back into VCC_PHONE. It even damages the chip (so says the datasheet) I corrected the double power source problem by disabling the LDO (see patch), but still 1.8V does not work and 3.0-3.3V is used. I have to look for other reasons. --- firmware/src/simtrace.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'firmware/src/simtrace.h') diff --git a/firmware/src/simtrace.h b/firmware/src/simtrace.h index 40ed3ab..b6d44c4 100644 --- a/firmware/src/simtrace.h +++ b/firmware/src/simtrace.h @@ -30,8 +30,17 @@ #define SIMTRACE_PIO_SC_SW AT91C_PIO_PA20 #define SIMTRACE_PIO_IO_SW AT91C_PIO_PA19 +/* to set power for VCC_SIM for early prototype + * unused pin in v1.0p + */ #define SIMTRACE_PIO_VCC_SIM AT91C_PIO_PA5 -#define SIMTRACE_PIO_VCC_PHONE AT91C_PIO_PA30 + +/* to set power source for VCC_SIM for v1.0(p) */ +#define SIMTRACE_PIO_SIM_PWREN AT91C_PIO_PA5 +#define SIMTRACE_PIO_SIM_PWRFWD AT91C_PIO_PA26 + +/* VCC_PHONE detection */ +#define SIMTRACE_PIO_VCC_PHONE AT91C_PIO_PA25 /* SPI flash */ #define PIO_SPIF_nWP AT91C_PIO_PA15 -- cgit v1.2.3