From f916ba39f61d8374abcddac3d27164c20a60a034 Mon Sep 17 00:00:00 2001
From: MX682X <58419867+MX682X@users.noreply.github.com>
Date: Fri, 29 Nov 2024 22:25:41 +0100
Subject: [PATCH] experiment for attiny15 plus other stuff

---
 src/avrdude.conf.in |  2 +-
 src/pickit5.c       | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index 90220df2..ba1c0434 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -3147,7 +3147,7 @@ programmer # pickit5_dw
     prog_modes             = PM_debugWIRE;
     extra_features         = HAS_VTARG_READ;
     connection_type        = usb;
-    baudrate               = 200000;   # dW default clock
+    baudrate               = 125000;   # default clock for ISP on switch
     usbvid                 = 0x04d8;
     usbpid                 = 0x9036, 0x9012, 0x9018; # PK5, PK4 (pic mode), snap (pic mode)
 ;
diff --git a/src/pickit5.c b/src/pickit5.c
index 686f0ee9..29d0dfcd 100644
--- a/src/pickit5.c
+++ b/src/pickit5.c
@@ -522,6 +522,13 @@ static void pickit5_enable(PROGRAMMER *pgm, const AVRPART *p) {
       mem->page_size = mem->size < 1024? mem->size : 1024;
       mem->readsize = mem->size < 1024? mem->size : 1024;
     }
+    if((mem = avr_locate_eeprom(p))) {
+      if (mem->mode == 0x04) {
+        mem->page_size = 0x04;
+        mem->readsize = 0x04;
+        mem->blocksize = 0x04;
+      }
+    }
   }
   if(both_xmegajtag(pgm, p) || both_pdi(pgm, p)) {
     if((mem = avr_locate_flash(p))) {
@@ -1305,6 +1312,8 @@ static void pickit5_dw_switch_to_isp(const PROGRAMMER *pgm, const AVRPART *p) {
         pmsg_error("Failed switching scripts, aborting.\n");
         return;
       }
+      pmsg_notice("Switched to ISP mode");
+      pickit5_set_sck_period(pgm, 1.0 / my.actual_pgm_clk);
       pickit5_program_enable(pgm, p);
     }
   }
@@ -1607,7 +1616,7 @@ static int pickit5_read_prodsig(const PROGRAMMER *pgm, const AVRPART *p,
         return 0; // debugWire
       }
     } else {
-      rc = -6;  // Something went wrong
+      return 0; // part has no prodsig nor ReadConfigmem
     }
   }
   if (rc >= 0) {  // No errors, copy data