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Add Xplained Mini SUFFER R/W support

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for boards that uses the stk500v2 protocol, like the Xplained Mini ATmega328PB
This commit is contained in:
MCUdude
2022-12-25 20:08:51 +01:00
parent 6e98a445cc
commit 8900550bb5
2 changed files with 56 additions and 0 deletions
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51
src/stk500v2.c
View File

@@ -1315,6 +1315,21 @@ static int stk500v2_jtag3_initialize(const PROGRAMMER *pgm, const AVRPART *p) {
if (jtag3_recv(pgmcp, &resp) > 0)
free(resp);
// Read or write Xplained Mini SUFFER register
if (PDATA(pgm)->suffer_get || PDATA(pgm)->suffer_set) {
// Read existing SUFFER value
if (jtag3_getparm(pgmcp, SCOPE_EDBG, MEDBG_REG_SUFFER_BANK + 0x10, MEDBG_REG_SUFFER_OFFSET, &(PDATA(pgm)->suffer_data[0]), 1) < 0)
return -1;
if (!PDATA(pgm)->suffer_set)
msg_info("Xplained Mini SUFFER register value read as 0x%02x\n", PDATA(pgm)->suffer_data[0]);
// Write new SUFFER value
else {
if (jtag3_setparm(pgmcp, SCOPE_EDBG, MEDBG_REG_SUFFER_BANK + 0x10, MEDBG_REG_SUFFER_OFFSET, &(PDATA(pgm)->suffer_data[1]), 1) < 0)
return -1;
msg_info("Xplained Mini SUFFER register value changed from 0x%02x to 0x%02x\n", PDATA(pgm)->suffer_data[0], PDATA(pgm)->suffer_data[1]);
}
}
free(pgmcp);
/*
@@ -1528,6 +1543,41 @@ static void stk500v2_enable(PROGRAMMER *pgm, const AVRPART *p) {
return;
}
static int stk500v2_jtag3_parseextparms(const PROGRAMMER *pgm, const LISTID extparms) {
LNODEID ln;
const char *extended_param;
int rv = 0;
for (ln = lfirst(extparms); ln; ln = lnext(ln)) {
extended_param = ldata(ln);
if (strncmp(extended_param, "suffer", strlen("suffer")) == 0) {
for (LNODEID ln=lfirst(pgm->id); ln; ln=lnext(ln)) {
if (strncmp(ldata(ln), "xplainedmini", strlen("xplainedmini")) == 0) {
// Set SUFFER value
if (strncmp(extended_param, "suffer=", strlen("suffer=")) == 0) {
int sscanf_success = sscanf(extended_param, "suffer=%hhx", (&PDATA(pgm)->suffer_data[1]));
if (sscanf_success < 1 || (~PDATA(pgm)->suffer_data[1] & 0x78)) {
pmsg_error("invalid suffer value '%s'\n", extended_param);
rv = -1;
break;
}
PDATA(pgm)->suffer_set = true;
}
// Get SUFFER value
else
PDATA(pgm)->suffer_get = true;
break;
}
}
continue;
}
pmsg_error("invalid extended parameter '%s'\n", extended_param);
rv = -1;
}
return rv;
}
static int stk500v2_open(PROGRAMMER *pgm, const char *port) {
union pinfo pinfo = { .serialinfo.baud = 115200, .serialinfo.cflags = SERIAL_8N1 };
@@ -4529,6 +4579,7 @@ void stk500v2_jtag3_initpgm(PROGRAMMER *pgm) {
* mandatory functions
*/
pgm->initialize = stk500v2_jtag3_initialize;
pgm->parseextparams = stk500v2_jtag3_parseextparms;
pgm->display = stk500v2_display;
pgm->enable = stk500v2_enable;
pgm->disable = stk500v2_jtag3_disable;

5
src/stk500v2_private.h
View File

@@ -270,6 +270,11 @@ struct pdata
}
pgmtype;
/* Get/set flags for Xplained Mini SUFFER register */
bool suffer_get;
bool suffer_set;
unsigned char suffer_data[2];
const AVRPART *lastpart;
/* Start address of Xmega boot area */