summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
author(no author) <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2006-08-08 20:13:27 +0000
committer(no author) <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2006-08-08 20:13:27 +0000
commit8e4fab424777ca316042e9b93502484de58217fb (patch)
tree465adcb5ee6b88e47923982e0c0e5ddb095b9486
parent7907a1087e02fca450df732aa664f3dc6c0f9252 (diff)
Add SSC rx support to PWM firmware, so we can sample what we output ;)
git-svn-id: https://svn.openpcd.org:2342/trunk@89 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
-rw-r--r--openpcd/firmware/src/main_pwm.c74
1 files changed, 59 insertions, 15 deletions
diff --git a/openpcd/firmware/src/main_pwm.c b/openpcd/firmware/src/main_pwm.c
index f39a55a..26e073a 100644
--- a/openpcd/firmware/src/main_pwm.c
+++ b/openpcd/firmware/src/main_pwm.c
@@ -7,12 +7,17 @@
#include <errno.h>
#include <string.h>
#include <lib_AT91SAM7.h>
+#include "openpcd.h"
#include "rc632.h"
#include "dbgu.h"
#include "led.h"
#include "pwm.h"
+#include "tc.h"
+#include "ssc.h"
+#include "pcd_enumerate.h"
+#include "usb_handler.h"
-static u_int8_t force_100ask = 0;
+static u_int8_t force_100ask = 1;
static u_int8_t mod_conductance = 0x3f;
static u_int8_t cw_conductance = 0x3f;
static u_int16_t duty_percent = 22;
@@ -52,15 +57,19 @@ static u_int8_t rsrel_table[] = {
37, 26, 27, 51, 38, 28, 29, 39, 30, 52, 31, 40, 41, 53, 42, 43,
54, 44, 45, 55, 46, 47, 56, 57, 58, 59, 60, 61, 62, 63 };
+
+static u_int16_t cdivs[] = { 128, 64, 32, 16 };
+static int cdiv_idx = 0;
+
static void help(void)
{
DEBUGPCR("o: decrease duty p: increase duty\r\n"
"k: stop pwm l: start pwn\r\n"
"n: decrease freq m: incresae freq\r\n"
"v: decrease mod_cond b: increase mod_cond\r\n"
- "g: decrease cw_cond h: increase cw_cond\r\n");
- DEBUGPCR("u: PA0 const 1 y: PA0 const 0\r\n"
- "t: PA0 PWM0 f: toggle Force100ASK");
+ "g: decrease cw_cond h: increase cw_cond");
+ DEBUGPCR("u: PA23 const 1 y: PA23 const 0\r\n"
+ "t: PA23 PWM0 f: toggle Force100ASK");
}
void _init_func(void)
@@ -75,13 +84,20 @@ void _init_func(void)
/* switch PA17 (connected to MFIN on board) to input */
AT91F_PIO_CfgInput(AT91C_BASE_PIOA, AT91C_PIO_PA17);
- pwm_init();
- rc632_modulate_mfin();
+ DEBUGPCRF("Initializing carrier divider");
+ tc_cdiv_init();
+ DEBUGPCRF("Initializing PWM");
+ pwm_init();
pwm_freq_set(0, 105937);
pwm_start(0);
-
pwm_duty_set_percent(0, 22); /* 22% of 9.43uS = 2.07uS */
+ rc632_modulate_mfin();
+
+ udp_init();
+
+ DEBUGPCRF("Initializing SSC RX");
+ ssc_rx_init();
}
int _main_dbgu(char key)
@@ -122,19 +138,19 @@ int _main_dbgu(char key)
}
break;
case 'u':
- DEBUGPCRF("PA0 output high");
- AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, AT91C_PIO_PA0);
- AT91F_PIO_SetOutput(AT91C_BASE_PIOA, AT91C_PIO_PA0);
+ DEBUGPCRF("PA23 output high");
+ AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
+ AT91F_PIO_SetOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
break;
case 'y':
- DEBUGPCRF("PA0 output low");
- AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, AT91C_PIO_PA0);
- AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, AT91C_PIO_PA0);
+ DEBUGPCRF("PA23 output low");
+ AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
+ AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
return 0;
break;
case 't':
- DEBUGPCRF("PA0 PeriphA (PWM)");
- AT91F_PIO_CfgPeriph(AT91C_BASE_PIOA, AT91C_PA0_PWM0, 0);
+ DEBUGPCRF("PA23 PeriphA (PWM)");
+ AT91F_PIO_CfgPeriph(AT91C_BASE_PIOA, 0, AT91C_PA23_PWM0);
return 0;
break;
case 'f':
@@ -182,6 +198,25 @@ int _main_dbgu(char key)
help();
return 0;
break;
+ case '<':
+ tc_cdiv_phase_inc();
+ break;
+ case '>':
+ tc_cdiv_phase_dec();
+ break;
+ case '{':
+ if (cdiv_idx > 0)
+ cdiv_idx--;
+ tc_cdiv_set_divider(cdivs[cdiv_idx]);
+ break;
+ case '}':
+ if (cdiv_idx < ARRAY_SIZE(cdivs)-1)
+ cdiv_idx++;
+ tc_cdiv_set_divider(cdivs[cdiv_idx]);
+ break;
+ case 's':
+ ssc_rx_start();
+ break;
default:
return -EINVAL;
}
@@ -192,7 +227,16 @@ int _main_dbgu(char key)
return 0;
}
+
void _main_func(void)
{
+ /* first we try to get rid of pending to-be-sent stuff */
+ usb_out_process();
+
+ /* next we deal with incoming reqyests from USB EP1 (OUT) */
+ usb_in_process();
+
+ rc632_unthrottle();
+
led_toggle(2);
}
personal git repositories of Harald Welte. Your mileage may vary