qi-hardware/ben-blinkenlights
1
0
Fork 0
mirror of git://projects.qi-hardware.com/ben-blinkenlights.git synced 2024-11-23 21:08:07 +02:00
Code

lpc111x-isp/lpc111x.c: define IO pins via array, not #defines

Browse Source
This commit is contained in:
Werner Almesberger 2013-01-02 09:58:45 -03:00
parent 9ddc377969
commit 3b0c8c699e
1 changed files with 34 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
lpc111x-isp/lpc111x.c
View File

@ -25,14 +25,6 @@
#include <ubb/swuart.h>
#define TGT_nRESET UBB_CMD
#define TGT_nISP UBB_DAT1
#define TGT_TX UBB_DAT3
#define TGT_RX UBB_DAT2
#define HOST_RX TGT_TX
#define HOST_TX TGT_RX
#define BPS 115200
#define MAX_BUF 10000 /* receive buffer */
@ -53,6 +45,27 @@
#define SECTOR 4096
#define PAGE 256
enum {
pin_rxd, /* RXD pin on the device (PIO1_6) */
pin_txd, /* TXD pin on the device (PIO1_7) */
pin_nisp, /* nISP: ISP mode selection (PIO0_1) */
pin_nreset, /* nRESET pin (PIO0_0) */
pin_end /* last value */
};
static struct pin {
const char *name;
const char *alt_name;
uint32_t pin;
} pin[] = {
[pin_rxd] = { "RXD", "P1_6", UBB_DAT2 },
[pin_txd] = { "TXD", "P1_7", UBB_DAT3 },
[pin_nisp] = { "nISP", "P0_1", UBB_DAT1 },
[pin_nreset] = { "nRESET", "P0_0", UBB_CMD },
[pin_end] = { NULL }
};
static int verbose = 0;
static int quiet = 0;
@ -210,9 +223,9 @@ static int autobaud(void)
const char *res;
for (i = 0; i != AUTOBAUD_TRIES; i++) {
CLR(TGT_nRESET);
CLR(pin[pin_nreset].pin);
usleep(10); /* DS Table 9 pg 29 says min 50 ns */
SET(TGT_nRESET);
SET(pin[pin_nreset].pin);
usleep(5*1000); /* UM 26.3.1 pg 408 says max 3 ms */
@ -542,13 +555,13 @@ static void start_isp(int power)
usleep(100*1000);
SET(TGT_nRESET);
OUT(TGT_nRESET);
SET(pin[pin_nreset].pin);
OUT(pin[pin_nreset].pin);
CLR(TGT_nISP);
OUT(TGT_nISP);
CLR(pin[pin_nisp].pin);
OUT(pin[pin_nisp].pin);
if (swuart_open(HOST_TX, HOST_RX, BPS) < 0) {
if (swuart_open(pin[pin_rxd].pin, pin[pin_txd].pin, BPS) < 0) {
perror("swuart_open");
exit(1);
}
@ -579,16 +592,16 @@ static void run_target(int power)
if (power)
ubb_power(1);
SET(TGT_nRESET);
OUT(TGT_nRESET);
SET(pin[pin_nreset].pin);
OUT(pin[pin_nreset].pin);
IN(TGT_nISP);
IN(pin[pin_nisp].pin);
CLR(TGT_nRESET);
CLR(pin[pin_nreset].pin);
usleep(10); /* DS Table 9 pg 29 says min 50 ns */
SET(TGT_nRESET);
SET(pin[pin_nreset].pin);
ubb_close(UBB_nPWR | TGT_nRESET | TGT_nISP);
ubb_close(UBB_nPWR | pin[pin_nreset].pin | pin[pin_nisp].pin);
}