Wait for a while when switching the RESET_N line

[fw/altos] / lib / ccdbg.h

diff --git a/lib/ccdbg.h b/lib/ccdbg.h
index 037d8ff574c11386231f7aa1d93b37e018248493..8bc9444a2e00269230624c9674b54354488dea8d 100644 (file)
--- a/lib/ccdbg.h
+++ b/lib/ccdbg.h
@@ -37,6 +37,12 @@
 #define CC_RESET_N     0x4
 #define CC_CLOCK_US    (0)
 
 #define CC_RESET_N     0x4
 #define CC_CLOCK_US    (0)
 

+/* Telemetrum has a 10k pull-up to 3.3v, a 0.001uF cap to ground
+ * and a 2.7k resistor to the reset line. This takes about 6us
+ * to settle, so we'll wait longer than that after changing the reset line
+ */
+#define CC_RESET_US    (12)
+

 /* 8051 instructions
  */
 #define NOP                    0x00
 /* 8051 instructions
  */
 #define NOP                    0x00


@@ -264,6 +270,9 @@ ccdbg_set_clock(uint32_t us);
 void
 ccdbg_half_clock(struct ccdbg *dbg);
 
 void
 ccdbg_half_clock(struct ccdbg *dbg);
 

+void
+ccdbg_wait_reset(struct ccdbg *dbg);
+

 int
 ccdbg_write(struct ccdbg *dbg, uint8_t mask, uint8_t value);
 
 int
 ccdbg_write(struct ccdbg *dbg, uint8_t mask, uint8_t value);